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- The status screen uses the ST7920 character generator to greatly reduce SPI traffic and MCU load when updating the status screen. - Has been tested with the RepRapDiscount Full Graphics Smart Controller but should work with any LCD that uses an ST7920 or fully compatible controller.pull/1/head
Marcio Teixeira
7 years ago
committed by
Scott Lahteine
Scott Lahteine
27 changed files with 1331 additions and 18 deletions
@ -0,0 +1,247 @@ |
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/*
|
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* Lightweight Status Screen for the RepRapDiscount Full |
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* Graphics Smart Controller (ST7920-based 128x64 LCD) |
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* |
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* (c) 2017 Aleph Objects, Inc. |
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* |
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* The code in this page is free software: you can |
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* redistribute it and/or modify it under the terms of the GNU |
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* General Public License (GNU GPL) as published by the Free Software |
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* Foundation, either version 3 of the License, or (at your option) |
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* any later version. The code is distributed WITHOUT ANY WARRANTY; |
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* without even the implied warranty of MERCHANTABILITY or FITNESS |
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* FOR A PARTICULAR PURPOSE. See the GNU GPL for more details. |
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* |
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*/ |
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|
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#ifndef ULTRALCD_ST7920_LITE_STATUS_H |
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#define ULTRALCD_ST7920_LITE_STATUS_H |
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class ST7920_Lite_Status_Screen { |
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private: |
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static struct st7920_state_t { |
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uint8_t synced : 1; // Whether a sync has been sent
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uint8_t cmd : 1; // Whether the sync was cmd or data
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uint8_t extended : 1; |
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uint8_t graphics : 1; |
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uint8_t sa : 1; |
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} current_bits; |
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|
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static void cs(); |
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static void ncs(); |
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static void sync_cmd(); |
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static void sync_dat(); |
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static void write_byte(uint8_t w); |
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|
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static void cmd(uint8_t cmd); |
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static void begin_data(); |
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static void write_word(uint16_t w); |
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static void write_str(const char *str); |
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static void write_str(const char *str, uint8_t len); |
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static void write_str_P(const char *str); |
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static void write_str(progmem_str str); |
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static void write_number(uint8_t value, uint8_t digits=3); |
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|
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static void _extended_function_set(bool extended, bool graphics); |
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static void _scroll_or_addr_select(bool sa); |
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static void reset_state_from_unknown(); |
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|
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static void home(); |
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static void display_status(bool display_on, bool cursor_on, bool blink_on); |
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static void extended_function_set(bool extended); |
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static void graphics(bool graphics); |
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static void entry_mode_select(bool ac_increase, bool shift); |
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static void scroll_or_addr_select(bool sa); |
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static void set_ddram_address(uint8_t addr); |
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static void set_cgram_address(uint8_t addr); |
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static void set_gdram_address(uint8_t x, uint8_t y); |
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|
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static void clear(); |
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static void clear_ddram(); |
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static void clear_gdram(); |
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static void load_cgram_icon(uint16_t addr, const void *data); |
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static void draw_gdram_icon(uint8_t x, uint8_t y, const void *data); |
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|
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static uint8_t string_checksum(const char *str); |
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protected: |
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static void draw_static_elements(); |
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static void draw_progress_bar(uint8_t value); |
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static void draw_fan_icon(bool whichIcon); |
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static void draw_heat_icon(bool whichIcon, bool heating); |
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static void draw_extruder_1_temp(uint8_t temp, uint8_t target); |
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static void draw_extruder_2_temp(uint8_t temp, uint8_t target); |
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static void draw_bed_temp(uint8_t temp, uint8_t target); |
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static void draw_fan_speed(uint8_t value); |
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static void draw_print_time(uint32_t elapsed); |
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static void draw_feedrate_percentage(uint8_t percentage); |
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static void draw_status_message(const char *str); |
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static void draw_position(const float x, const float y, const float z, bool position_known = true); |
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|
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static bool indicators_changed(); |
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static bool position_changed(); |
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static bool blink_changed(); |
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static bool status_changed(); |
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|
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static void update_indicators(bool forceUpdate); |
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static void update_position(bool forceUpdate, bool resetChecksum); |
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static void update_status_or_position(bool forceUpdate); |
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static void update_progress(bool forceUpdate); |
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public: |
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static void update(bool forceUpdate); |
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static void on_entry(); |
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static void on_exit(); |
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static void clear_text_buffer(); |
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}; |
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/************************** ICON DEFINITIONS *************************************/ |
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#define CGRAM_ICON_1_ADDR 0x00 |
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#define CGRAM_ICON_2_ADDR 0x10 |
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#define CGRAM_ICON_3_ADDR 0x20 |
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#define CGRAM_ICON_4_ADDR 0x30 |
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#define CGRAM_ICON_1_WORD 0x00 |
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#define CGRAM_ICON_2_WORD 0x02 |
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#define CGRAM_ICON_3_WORD 0x04 |
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#define CGRAM_ICON_4_WORD 0x06 |
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PROGMEM const uint16_t nozzle_icon[] = { |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000111111110000, |
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0b0001111111111000, |
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0b0001111111111000, |
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0b0001111111111000, |
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0b0000111111110000, |
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0b0000111111110000, |
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0b0001111111111000, |
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0b0001111111111000, |
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0b0001111111111000, |
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0b0000011111100000, |
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0b0000001111000000, |
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0b0000000110000000, |
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0b0000000000000000, |
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0b0000000000000000 |
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}; |
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PROGMEM const uint16_t bed_icon[] = { |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0111111111111110, |
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0b0111111111111110, |
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0b0000000000000000, |
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0b0000000000000000 |
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}; |
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PROGMEM const uint16_t heat1_icon[] = { |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0010001000100000, |
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0b0001000100010000, |
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0b0000100010001000, |
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0b0000100010001000, |
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0b0001000100010000, |
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0b0010001000100000, |
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0b0010001000100000, |
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0b0001000100010000, |
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0b0000100010001000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000 |
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}; |
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PROGMEM const uint16_t heat2_icon[] = { |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000100010001000, |
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0b0000100010001000, |
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0b0001000100010000, |
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0b0010001000100000, |
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0b0010001000100000, |
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0b0001000100010000, |
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0b0000100010001000, |
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0b0000100010001000, |
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0b0001000100010000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000, |
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0b0000000000000000 |
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}; |
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PROGMEM const uint16_t fan1_icon[] = { |
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0b0000000000000000, |
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0b0111111111111110, |
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0b0111000000001110, |
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0b0110001111000110, |
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0b0100001111000010, |
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0b0100000110000010, |
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0b0101100000011010, |
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0b0101110110111010, |
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0b0101100000011010, |
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0b0100000110000010, |
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0b0100001111000010, |
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0b0110001111000110, |
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0b0111000000001110, |
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0b0111111111111110, |
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0b0000000000000000, |
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0b0000000000000000 |
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}; |
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PROGMEM const uint16_t fan2_icon[] = { |
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0b0000000000000000, |
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0b0111111111111110, |
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0b0111000000001110, |
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0b0110010000100110, |
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0b0100111001110010, |
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0b0101111001111010, |
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0b0100110000110010, |
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0b0100000110000010, |
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0b0100110000110010, |
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0b0101111001111010, |
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0b0100111001110010, |
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0b0110010000100110, |
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0b0111000000001110, |
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0b0111111111111110, |
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0b0000000000000000, |
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0b0000000000000000 |
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}; |
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PROGMEM const uint16_t feedrate_icon[] = { |
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0b0000000000000000, |
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0b0111111000000000, |
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0b0100000000000000, |
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0b0100000000000000, |
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0b0100000000000000, |
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0b0111111011111000, |
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0b0100000010000100, |
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0b0100000010000100, |
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0b0100000010000100, |
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0b0100000011111000, |
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0b0000000010001000, |
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0b0000000010000100, |
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0b0000000010000100, |
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0b0000000010000010, |
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0b0000000000000000, |
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0b0000000000000000 |
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}; |
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static void lcd_implementation_status_screen(); |
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static void lcd_in_status(bool inStatus); |
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#endif // ULTRALCD_ST7920_LITE_STATUS_H
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@ -0,0 +1,757 @@ |
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/*
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* Lightweight Status Screen for the RepRapDiscount Full |
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* Graphics Smart Controller (ST7920-based 128x64 LCD) |
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* |
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* (c) 2017 Aleph Objects, Inc. |
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* |
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* The code in this page is free software: you can |
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* redistribute it and/or modify it under the terms of the GNU |
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* General Public License (GNU GPL) as published by the Free Software |
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* Foundation, either version 3 of the License, or (at your option) |
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* any later version. The code is distributed WITHOUT ANY WARRANTY; |
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* without even the implied warranty of MERCHANTABILITY or FITNESS |
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* FOR A PARTICULAR PURPOSE. See the GNU GPL for more details. |
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* |
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*/ |
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|
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/* This is an implementation of a status screen for the RepRapDiscount
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* Full Graphics Smart Controller using native ST7920 commands rather |
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* than using U8Glib. |
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* |
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* This alternative status screen makes use of the built-in character |
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* generation capabilities of the ST7920 to update the status screen |
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* with less SPI traffic and CPU use. In particular: |
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* |
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* - The fan and bed animations are handled using custom characters |
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* that are stored in CGRAM. This allows for the animation to be |
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* updated by writing a single character to the text-buffer (DDRAM). |
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* |
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* - All the information in the status screen is text that is written |
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* to DDRAM, so the work of generating the bitmaps is offloaded to |
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* the ST7920 rather than being render by U8Glib on the MCU. |
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* |
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* - The graphics buffer (GDRAM) is only used for static graphics |
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* elements (nozzle and feedrate bitmaps) and for the progress |
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* bar, so updates are sporadic. |
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*/ |
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#include "../../libs/duration_t.h" |
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typedef const __FlashStringHelper *progmem_str; |
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#include "ultralcd_impl_st7920_lite_status_screen.h" |
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#define BUFFER_WIDTH 256 |
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#define BUFFER_HEIGHT 32 |
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#define DDRAM_LINE_1 0x00 |
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#define DDRAM_LINE_2 0x10 |
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#define DDRAM_LINE_3 0x08 |
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#define DDRAM_LINE_4 0x18 |
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ST7920_Lite_Status_Screen::st7920_state_t ST7920_Lite_Status_Screen::current_bits; |
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void ST7920_Lite_Status_Screen::cmd(uint8_t cmd) { |
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if(!current_bits.synced || !current_bits.cmd) { |
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current_bits.synced = true; |
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current_bits.cmd = true; |
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sync_cmd(); |
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} |
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write_byte(cmd); |
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} |
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void ST7920_Lite_Status_Screen::begin_data() { |
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extended_function_set(false); |
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if(!current_bits.synced || current_bits.cmd) { |
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current_bits.synced = true; |
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current_bits.cmd = false; |
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sync_dat(); |
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} |
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} |
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void ST7920_Lite_Status_Screen::write_word(uint16_t w) { |
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write_byte((w >> 8) & 0xFF); |
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write_byte((w >> 0) & 0xFF); |
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} |
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void ST7920_Lite_Status_Screen::write_str(const char *str) { |
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while(*str) { |
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write_byte(*str++); |
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} |
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} |
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void ST7920_Lite_Status_Screen::write_str(const char *str, uint8_t len) { |
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while(*str && len--) { |
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write_byte(*str++); |
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} |
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} |
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void ST7920_Lite_Status_Screen::write_str_P(const char *str) { |
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const char *p_str = (const char *)str; |
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char c = pgm_read_byte_near(p_str++); |
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while(c) { |
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write_byte(c); |
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c = pgm_read_byte_near(p_str++); |
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} |
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} |
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void ST7920_Lite_Status_Screen::write_str(progmem_str str) { |
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write_str_P((const char*)str); |
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} |
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void ST7920_Lite_Status_Screen::write_number(uint8_t value, uint8_t digits) { |
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char str[7]; |
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const char *fmt; |
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switch(digits) { |
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case 6: fmt = PSTR("%6d"); break; |
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case 5: fmt = PSTR("%5d"); break; |
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case 4: fmt = PSTR("%4d"); break; |
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case 3: fmt = PSTR("%3d"); break; |
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case 2: fmt = PSTR("%2d"); break; |
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case 1: fmt = PSTR("%1d"); break; |
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} |
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sprintf_P(str,fmt,value); |
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write_str(str); |
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} |
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void ST7920_Lite_Status_Screen::display_status(bool display_on, bool cursor_on, bool blink_on) { |
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extended_function_set(false); |
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cmd(0b00001000 | |
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(display_on ? 0b0100 : 0) | |
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(cursor_on ? 0b0010 : 0) | |
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(blink_on ? 0b0001 : 0) |
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); |
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} |
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// Sets the extended and graphics bits simultaneously, regardless of
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// the current state. This is a helper function for extended_function_set()
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// and graphics()
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void ST7920_Lite_Status_Screen::_extended_function_set(bool extended, bool graphics) { |
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cmd( 0b00100000 | |
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(extended ? 0b00000100 : 0) | |
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(graphics ? 0b00000010 : 0) |
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); |
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current_bits.extended = extended; |
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current_bits.graphics = graphics; |
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} |
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void ST7920_Lite_Status_Screen::extended_function_set(bool extended) { |
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if(extended != current_bits.extended) { |
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_extended_function_set(extended, current_bits.graphics); |
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} |
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} |
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void ST7920_Lite_Status_Screen::graphics(bool graphics) { |
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if(graphics != current_bits.graphics) { |
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_extended_function_set(current_bits.extended, graphics); |
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} |
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} |
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void ST7920_Lite_Status_Screen::entry_mode_select(bool ac_increase, bool shift) { |
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extended_function_set(false); |
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cmd(0b00000100 | |
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(ac_increase ? 0b00000010 : 0) | |
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(shift ? 0b00000001 : 0) |
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); |
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} |
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// Sets the sa bit regardless of the current state. This is a helper
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// function for scroll_or_addr_select()
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void ST7920_Lite_Status_Screen::_scroll_or_addr_select(bool sa) { |
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extended_function_set(true); |
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cmd(0b00100010 | |
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(sa ? 0b000001 : 0) |
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); |
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current_bits.sa = sa; |
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} |
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void ST7920_Lite_Status_Screen::scroll_or_addr_select(bool sa) { |
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if(sa != current_bits.sa) { |
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_scroll_or_addr_select(sa); |
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} |
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} |
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void ST7920_Lite_Status_Screen::set_ddram_address(uint8_t addr) { |
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extended_function_set(false); |
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cmd(0b10000000 | (addr & 0b00111111)); |
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} |
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void ST7920_Lite_Status_Screen::set_cgram_address(uint8_t addr) { |
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extended_function_set(false); |
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cmd(0b01000000 | (addr & 0b00111111)); |
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} |
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void ST7920_Lite_Status_Screen::set_gdram_address(uint8_t x, uint8_t y) { |
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extended_function_set(true); |
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cmd(0b10000000 | (y & 0b01111111)); |
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cmd(0b10000000 | (x & 0b00001111)); |
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} |
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void ST7920_Lite_Status_Screen::clear() { |
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extended_function_set(false); |
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cmd(0x00000001); |
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delay(15); //delay for CGRAM clear
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} |
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void ST7920_Lite_Status_Screen::home() { |
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extended_function_set(false); |
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cmd(0x00000010); |
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} |
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/* This fills the entire text buffer with spaces */ |
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void ST7920_Lite_Status_Screen::clear_ddram() |
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{ |
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set_ddram_address(DDRAM_LINE_1); |
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begin_data(); |
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for(int i=0; i < 64;i++) { |
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write_byte(' '); |
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} |
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} |
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/* This fills the entire graphics buffer with zeros */ |
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void ST7920_Lite_Status_Screen::clear_gdram() |
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{ |
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for(int y = 0; y < BUFFER_HEIGHT; y++) { |
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set_gdram_address(0,y); |
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begin_data(); |
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for(int i = 0; i < (BUFFER_WIDTH / 16); i++) { |
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write_byte(0); |
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write_byte(0); |
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} |
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} |
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} |
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void ST7920_Lite_Status_Screen::load_cgram_icon(uint16_t addr, const void *data) { |
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const uint16_t *p_word = (const uint16_t *)data; |
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set_cgram_address(addr); |
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begin_data(); |
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for(int i = 0; i < 16; i++) { |
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uint16_t word = pgm_read_word_near(p_word++); |
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write_byte((word & 0xFF00) >> 8); |
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write_byte((word & 0x00FF) >> 0); |
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} |
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} |
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|
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/* Draws an icon in GDRAM. The position is specified in
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as if they were DDRAM coordinates, i.e. the x position |
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is [1-8], while the y position is [1-4] */ |
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void ST7920_Lite_Status_Screen::draw_gdram_icon(uint8_t x, uint8_t y, const void *data) { |
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const uint16_t *p_word = (const uint16_t *)data; |
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if(y > 2) { |
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// Handle display folding
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y -= 2; |
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x += 8; |
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} |
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x -= 1; |
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y -= 1; |
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for(int i = 0; i < 16; i++) { |
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uint16_t word = pgm_read_word_near(p_word++); |
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set_gdram_address(x,i+y*16); |
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begin_data(); |
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write_byte((word & 0xFF00) >> 8); |
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write_byte((word & 0x00FF) >> 0); |
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} |
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} |
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/************************** MAIN SCREEN *************************************/ |
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void ST7920_Lite_Status_Screen::draw_static_elements() { |
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scroll_or_addr_select(0); |
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// Load the animated bed and fan icons
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load_cgram_icon(CGRAM_ICON_1_ADDR, heat1_icon); |
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load_cgram_icon(CGRAM_ICON_2_ADDR, heat2_icon); |
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load_cgram_icon(CGRAM_ICON_3_ADDR, fan1_icon); |
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load_cgram_icon(CGRAM_ICON_4_ADDR, fan2_icon); |
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// Draw the static icons in GDRAM
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draw_gdram_icon(1,1,nozzle_icon); |
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#if EXTRUDERS == 2 |
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draw_gdram_icon(1,2,nozzle_icon); |
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#endif |
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draw_gdram_icon(6,2,feedrate_icon); |
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draw_gdram_icon(1,2,bed_icon); |
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|
|||
// Draw the initial fan icon
|
|||
draw_fan_icon(false); |
|||
} |
|||
|
|||
/* Although this is undocumented, the ST7920 allows the character
|
|||
* data buffer (DDRAM) to be used in conjunction with the graphics |
|||
* bitmap buffer (CGRAM). The contents of the graphics buffer is |
|||
* XORed with the data from the character generator. This allows |
|||
* us to make the progess bar out of graphical data (the bar) and |
|||
* text data (the percentage). |
|||
*/ |
|||
void ST7920_Lite_Status_Screen::draw_progress_bar(uint8_t value) { |
|||
#if EXTRUDERS == 1 |
|||
// If we have only one extruder, draw a long progress bar on the third line
|
|||
const int top = 1; // Top in pixels
|
|||
const int bottom = 13; // Bottom in pixels
|
|||
const int left = 8; // Left edge, in 16-bit words
|
|||
const int width = 5; // Width of progress bar, in 16-bit words
|
|||
#else |
|||
const int top = 16 + 1; // Top in pixels
|
|||
const int bottom = 16 + 13; // Bottom in pixels
|
|||
const int left = 5; // Left edge, in 16-bit words
|
|||
const int width = 3; // Width of progress bar, in 16-bit words
|
|||
#endif |
|||
const int char_pcnt = 100/width; // How many percent does each 16-bit word represent?
|
|||
|
|||
// Draw the progress bar as a bitmap in CGRAM
|
|||
|
|||
for(int y = top; y <= bottom; y++) { |
|||
set_gdram_address(left,y); |
|||
begin_data(); |
|||
for(int x = 0; x < width; x++) { |
|||
uint16_t gfx_word = 0x0000; |
|||
if((x+1)*char_pcnt <= value) { |
|||
// Draw completely filled bytes
|
|||
gfx_word = 0xFFFF; |
|||
} else if((x*char_pcnt) < value) { |
|||
// Draw partially filled bytes
|
|||
gfx_word = int(0x8000) >> (value % char_pcnt)*16/char_pcnt; |
|||
} |
|||
// Draw the frame around the progress bar
|
|||
if(y == top || y == bottom) { |
|||
// Draw top/bottom border
|
|||
gfx_word = 0xFFFF; |
|||
} else if (x == (width-1)) { |
|||
// Draw right border
|
|||
gfx_word |= 0x0001; |
|||
} else if (x == 0) { |
|||
// Draw left border
|
|||
gfx_word |= 0x8000; |
|||
} |
|||
write_word(gfx_word); |
|||
} |
|||
} |
|||
|
|||
// Draw the percentage as text in DDRAM
|
|||
|
|||
#if EXTRUDERS == 1 |
|||
set_ddram_address(DDRAM_LINE_3 + 1); |
|||
#else |
|||
set_ddram_address(DDRAM_LINE_2 + left); |
|||
#endif |
|||
|
|||
begin_data(); |
|||
if(value > 9) { |
|||
write_number(value,4); |
|||
write_str(F("% ")); |
|||
} else { |
|||
write_number(value,3); |
|||
write_str(F("% ")); |
|||
} |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_fan_icon(bool whichIcon) { |
|||
set_ddram_address(DDRAM_LINE_1+5); |
|||
begin_data(); |
|||
write_word(whichIcon ? CGRAM_ICON_3_WORD : CGRAM_ICON_4_WORD); |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_heat_icon(bool whichIcon, bool heating) { |
|||
#if EXTRUDERS == 1 |
|||
set_ddram_address(DDRAM_LINE_2); |
|||
#else |
|||
set_ddram_address(DDRAM_LINE_3); |
|||
#endif |
|||
begin_data(); |
|||
if(heating) { |
|||
write_word(whichIcon ? CGRAM_ICON_1_WORD : CGRAM_ICON_2_WORD); |
|||
} else { |
|||
write_byte(' '); |
|||
write_byte(' '); |
|||
} |
|||
} |
|||
|
|||
#define FAR(a,b) (((a > b) ? (a-b) : (b-a)) > 1) |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_extruder_1_temp(uint8_t temp, uint8_t target) { |
|||
set_ddram_address(DDRAM_LINE_1+1); |
|||
begin_data(); |
|||
write_number(temp); |
|||
if(target && FAR(temp, target)) { |
|||
write_str(F("\x1A")); |
|||
write_number(target); |
|||
} else { |
|||
write_str(F(" ")); |
|||
} |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_extruder_2_temp(uint8_t temp, uint8_t target) { |
|||
set_ddram_address(DDRAM_LINE_2+1); |
|||
begin_data(); |
|||
write_number(temp); |
|||
if(target && FAR(temp, target)) { |
|||
write_str(F("\x1A")); |
|||
write_number(target); |
|||
} else { |
|||
write_str(F(" ")); |
|||
} |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_bed_temp(uint8_t temp, uint8_t target) { |
|||
#if EXTRUDERS == 1 |
|||
set_ddram_address(DDRAM_LINE_2+1); |
|||
#else |
|||
set_ddram_address(DDRAM_LINE_3+1); |
|||
#endif |
|||
begin_data(); |
|||
write_number(temp); |
|||
if(target && FAR(temp, target)) { |
|||
write_str(F("\x1A")); |
|||
write_number(target); |
|||
} else { |
|||
write_str(F(" ")); |
|||
} |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_fan_speed(uint8_t value) { |
|||
set_ddram_address(DDRAM_LINE_1+6); |
|||
begin_data(); |
|||
write_number(value,4); |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_print_time(uint32_t elapsed) { |
|||
const uint8_t hrs = elapsed/3600; |
|||
const uint8_t min = (elapsed/60)%60; |
|||
char str[7]; |
|||
sprintf_P(str,hrs > 99 ? PSTR("%03d:%02d") : PSTR(" %02d:%02d"),hrs,min); |
|||
|
|||
set_ddram_address(DDRAM_LINE_3+5); |
|||
begin_data(); |
|||
write_str(str); |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_feedrate_percentage(uint8_t percentage) { |
|||
// We only have enough room for the feedrate when
|
|||
// we have one extruder
|
|||
#if EXTRUDERS == 1 |
|||
set_ddram_address(DDRAM_LINE_2+6); |
|||
begin_data(); |
|||
write_number(percentage,4); |
|||
#endif |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_status_message(const char *str) { |
|||
set_ddram_address(DDRAM_LINE_4); |
|||
begin_data(); |
|||
#if ENABLED(STATUS_MESSAGE_SCROLLING) |
|||
const uint8_t lcd_len = 16; |
|||
const uint8_t padding = 2; |
|||
uint8_t str_len = strlen(str); |
|||
|
|||
// Trim whitespace at the end of the str, as for some reason
|
|||
// messages like "Card Inserted" are padded with many spaces
|
|||
while(str_len > 0 && str[str_len-1] == ' ') { |
|||
str_len--; |
|||
} |
|||
|
|||
if(str_len <= lcd_len) { |
|||
// It all fits on the LCD without scrolling
|
|||
write_str(str); |
|||
} else { |
|||
// Print the message repeatedly until covering the LCD
|
|||
uint8_t c = status_scroll_pos; |
|||
for(uint8_t n = 0; n < lcd_len; n++) { |
|||
write_byte(c < str_len ? str[c] : ' '); |
|||
c++; |
|||
c %= str_len + padding; // Wrap around
|
|||
} |
|||
|
|||
// Scroll the message
|
|||
if(status_scroll_pos == str_len + padding) { |
|||
status_scroll_pos = 0; |
|||
} else { |
|||
status_scroll_pos++; |
|||
} |
|||
} |
|||
#else |
|||
write_str(str, 16); |
|||
#endif |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::draw_position(const float x, const float y, const float z, bool position_known) { |
|||
char str[7]; |
|||
set_ddram_address(DDRAM_LINE_4); |
|||
begin_data(); |
|||
|
|||
// If position is unknown, flash the labels.
|
|||
const unsigned char alt_label = position_known ? 0 : (lcd_blink() ? ' ' : 0); |
|||
|
|||
dtostrf(x, -4, 0, str); |
|||
write_byte(alt_label ? alt_label : 'X'); |
|||
write_str(str, 4); |
|||
|
|||
dtostrf(y, -4, 0, str); |
|||
write_byte(alt_label ? alt_label : 'Y'); |
|||
write_str(str, 4); |
|||
|
|||
dtostrf(z, -5, 1, str); |
|||
write_byte(alt_label ? alt_label : 'Z'); |
|||
write_str(str, 5); |
|||
} |
|||
|
|||
bool ST7920_Lite_Status_Screen::indicators_changed() { |
|||
// We only add the target temperatures to the checksum
|
|||
// because the actual temps fluctuate so by updating
|
|||
// them only during blinks we gain a bit of stability.
|
|||
const bool blink = lcd_blink(); |
|||
const uint8_t feedrate_perc = feedrate_percentage; |
|||
const uint8_t fan_speed = ((fanSpeeds[0] + 1) * 100) / 256; |
|||
const float extruder_1_target = thermalManager.degTargetHotend(0); |
|||
#if EXTRUDERS == 2 |
|||
const float extruder_2_target = thermalManager.degTargetHotend(1); |
|||
#endif |
|||
const float bed_target = thermalManager.degTargetBed(); |
|||
|
|||
static uint8_t last_checksum = 0; |
|||
|
|||
const uint8_t checksum = |
|||
uint8_t(blink) ^ |
|||
uint8_t(feedrate_perc) ^ |
|||
uint8_t(fan_speed) ^ |
|||
uint8_t(extruder_1_target) ^ |
|||
#if EXTRUDERS == 2 |
|||
uint8_t(extruder_2_target) ^ |
|||
#endif |
|||
uint8_t(bed_target); |
|||
|
|||
if(last_checksum == checksum) { |
|||
return false; |
|||
} else { |
|||
last_checksum = checksum; |
|||
return true; |
|||
} |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::update_indicators(bool forceUpdate) { |
|||
if(forceUpdate || indicators_changed()) { |
|||
const bool blink = lcd_blink(); |
|||
const duration_t elapsed = print_job_timer.duration(); |
|||
const uint32_t seconds_elapsed = elapsed.value; |
|||
const uint8_t feedrate_perc = feedrate_percentage; |
|||
const uint8_t fan_speed = ((fanSpeeds[0] + 1) * 100) / 256; |
|||
const float extruder_1_temp = thermalManager.degHotend(0); |
|||
const float extruder_1_target = thermalManager.degTargetHotend(0); |
|||
#if EXTRUDERS == 2 |
|||
const float extruder_2_temp = thermalManager.degHotend(1); |
|||
const float extruder_2_target = thermalManager.degTargetHotend(1); |
|||
#endif |
|||
const float bed_temp = thermalManager.degBed(); |
|||
const float bed_target = thermalManager.degTargetBed(); |
|||
|
|||
draw_extruder_1_temp(extruder_1_temp, extruder_1_target); |
|||
#if EXTRUDERS == 2 |
|||
draw_extruder_2_temp(extruder_2_temp, extruder_2_target); |
|||
#endif |
|||
draw_bed_temp(bed_temp, bed_target); |
|||
draw_fan_speed(fan_speed); |
|||
draw_print_time(seconds_elapsed); |
|||
draw_feedrate_percentage(feedrate_perc); |
|||
|
|||
// Update the fan and bed animations
|
|||
if(fan_speed > 0) { |
|||
draw_fan_icon(blink); |
|||
} |
|||
if(bed_target > 0) { |
|||
draw_heat_icon(blink, true); |
|||
} else { |
|||
draw_heat_icon(false, false); |
|||
} |
|||
} |
|||
} |
|||
|
|||
bool ST7920_Lite_Status_Screen::position_changed() { |
|||
const float x_pos = current_position[X_AXIS]; |
|||
const float y_pos = current_position[Y_AXIS]; |
|||
const float z_pos = current_position[Z_AXIS]; |
|||
const uint8_t checksum = uint8_t(x_pos) ^ uint8_t(y_pos) ^ uint8_t(z_pos); |
|||
|
|||
static uint8_t last_checksum = 0; |
|||
if(last_checksum == checksum) { |
|||
return false; |
|||
} else { |
|||
last_checksum = checksum; |
|||
return true; |
|||
} |
|||
} |
|||
|
|||
bool ST7920_Lite_Status_Screen::status_changed() { |
|||
uint8_t checksum = 0; |
|||
for(const char *p = lcd_status_message; *p; p++) { |
|||
checksum ^= *p; |
|||
} |
|||
|
|||
static uint8_t last_checksum = 0; |
|||
if(last_checksum == checksum) { |
|||
return false; |
|||
} else { |
|||
last_checksum = checksum; |
|||
return true; |
|||
} |
|||
} |
|||
|
|||
bool ST7920_Lite_Status_Screen::blink_changed() { |
|||
static uint8_t last_blink = 0; |
|||
|
|||
const bool blink = lcd_blink(); |
|||
if(last_blink == blink) { |
|||
return false; |
|||
} else { |
|||
last_blink = blink; |
|||
return true; |
|||
} |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::update_status_or_position(bool forceUpdate) { |
|||
static uint8_t countdown = 0; |
|||
|
|||
/* There is only enough room in the display for either the
|
|||
* status message or the position, not both, so we choose |
|||
* one or another. Whenever the status message changes, |
|||
* we show it for a number of consecutive seconds, but |
|||
* then go back to showing the position as soon as the |
|||
* head moves, i.e: |
|||
* |
|||
* countdown > 1 -- Show status |
|||
* countdown = 1 -- Show status, until movement |
|||
* countdown = 0 -- Show position |
|||
*/ |
|||
if( forceUpdate || status_changed() ) { |
|||
#if ENABLED(STATUS_MESSAGE_SCROLLING) |
|||
status_scroll_pos = 0; |
|||
#endif |
|||
if(lcd_strlen(lcd_status_message)) { |
|||
countdown = DELAY_TO_SHOW_POSITION; |
|||
} else { |
|||
countdown = 0; |
|||
} |
|||
draw_status_message(lcd_status_message); |
|||
blink_changed(); // Clear changed flag
|
|||
} |
|||
else if(countdown > 1 && blink_changed() ) { |
|||
countdown--; |
|||
#if ENABLED(STATUS_MESSAGE_SCROLLING) |
|||
draw_status_message(lcd_status_message); |
|||
#endif |
|||
} |
|||
else if(countdown > 0 && blink_changed() ) { |
|||
if(position_changed()) { |
|||
countdown--; |
|||
forceUpdate = true; |
|||
} |
|||
#if ENABLED(STATUS_MESSAGE_SCROLLING) |
|||
draw_status_message(lcd_status_message); |
|||
#endif |
|||
} |
|||
if(countdown == 0 && (forceUpdate || position_changed() || |
|||
#if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING) |
|||
blink_changed() |
|||
#endif |
|||
)) { |
|||
draw_position( |
|||
current_position[X_AXIS], |
|||
current_position[Y_AXIS], |
|||
current_position[Z_AXIS], |
|||
#if ENABLED(DISABLE_REDUCED_ACCURACY_WARNING) |
|||
true |
|||
#else |
|||
axis_known_position[X_AXIS] && |
|||
axis_known_position[Y_AXIS] && |
|||
axis_known_position[Z_AXIS] |
|||
#endif |
|||
); |
|||
} |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::update_progress(bool forceUpdate) { |
|||
#if ENABLED(SDSUPPORT) |
|||
const uint8_t percent_done = card.percentDone(); |
|||
#else |
|||
const uint8_t percent_done = 0; |
|||
#endif |
|||
|
|||
// Since the progress bar involves writing
|
|||
// quite a few bytes to GDRAM, only do this
|
|||
// when an update is actually necessary.
|
|||
|
|||
static uint8_t last_progress = 0; |
|||
if(!forceUpdate && last_progress == percent_done) |
|||
return; |
|||
last_progress = percent_done; |
|||
|
|||
draw_progress_bar(percent_done); |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::update(bool forceUpdate) { |
|||
cs(); |
|||
update_indicators(forceUpdate); |
|||
update_status_or_position(forceUpdate); |
|||
update_progress(forceUpdate); |
|||
ncs(); |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::reset_state_from_unknown() { |
|||
_extended_function_set(true, true); // Do it twice as only one bit
|
|||
_extended_function_set(true, true); // get set at a time.
|
|||
_scroll_or_addr_select(false); |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::on_entry() { |
|||
cs(); |
|||
reset_state_from_unknown(); |
|||
clear(); |
|||
clear_gdram(); |
|||
draw_static_elements(); |
|||
update(true); |
|||
ncs(); |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::on_exit() { |
|||
cs(); |
|||
clear(); |
|||
_extended_function_set(true, true); // Restore state to what u8g expects.
|
|||
ncs(); |
|||
} |
|||
|
|||
// This is called prior to the KILL screen to
|
|||
// clear the screen so we don't end up with a
|
|||
// garbled display.
|
|||
void ST7920_Lite_Status_Screen::clear_text_buffer() { |
|||
cs(); |
|||
reset_state_from_unknown(); |
|||
clear(); |
|||
_extended_function_set(true, true); // Restore state to what u8g expects.
|
|||
ncs(); |
|||
} |
|||
|
|||
static void lcd_implementation_status_screen() { |
|||
ST7920_Lite_Status_Screen::update(false); |
|||
} |
|||
|
|||
/* In order to properly update the lite status screen,
|
|||
* we must know when we have entered and left the |
|||
* status screen. Since the ultralcd code is not |
|||
* set up for doing this, we call this function before |
|||
* each update indicating whether the current screen |
|||
* is the status screen. |
|||
* |
|||
* This function keeps track of whether we have left or |
|||
* entered the status screen and calls the on_entry() |
|||
* and on_exit() methods for cleanup. |
|||
*/ |
|||
|
|||
static void lcd_in_status(bool inStatus) { |
|||
static bool lastInStatus = false; |
|||
if(!lastInStatus && inStatus) { |
|||
ST7920_Lite_Status_Screen::on_entry(); |
|||
lastInStatus = true; |
|||
} |
|||
if(lastInStatus && !inStatus) { |
|||
ST7920_Lite_Status_Screen::on_exit(); |
|||
lastInStatus = false; |
|||
} |
|||
} |
|||
@ -0,0 +1,39 @@ |
|||
/*
|
|||
* Lightweight Status Screen for the RepRapDiscount Full |
|||
* Graphics Smart Controller (ST7920-based 128x64 LCD) |
|||
* |
|||
* (c) 2017 Aleph Objects, Inc. |
|||
* |
|||
* The code in this page is free software: you can |
|||
* redistribute it and/or modify it under the terms of the GNU |
|||
* General Public License (GNU GPL) as published by the Free Software |
|||
* Foundation, either version 3 of the License, or (at your option) |
|||
* any later version. The code is distributed WITHOUT ANY WARRANTY; |
|||
* without even the implied warranty of MERCHANTABILITY or FITNESS |
|||
* FOR A PARTICULAR PURPOSE. See the GNU GPL for more details. |
|||
* |
|||
*/ |
|||
|
|||
#include "ultralcd_impl_st7920_lite_status_screen.h" |
|||
|
|||
void ST7920_Lite_Status_Screen::cs() { |
|||
ST7920_CS(); |
|||
current_bits.synced = false; |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::ncs() { |
|||
ST7920_NCS(); |
|||
current_bits.synced = false; |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::sync_cmd() { |
|||
ST7920_SET_CMD(); |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::sync_dat() { |
|||
ST7920_SET_DAT(); |
|||
} |
|||
|
|||
void ST7920_Lite_Status_Screen::write_byte(uint8_t data) { |
|||
ST7920_WRITE_NIBBLES(data); |
|||
} |
|||
Loading…
Reference in new issue