Scott Lahteine
7 years ago
committed by
GitHub
GitHub
17 changed files with 244 additions and 349 deletions
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/**
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* Marlin 3D Printer Firmware |
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* Copyright (C) 2016, 2017 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* |
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* Based on Sprinter and grbl. |
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* |
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*/ |
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/*
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based on u8g_com_st7920_hw_spi.c |
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Universal 8bit Graphics Library |
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Copyright (c) 2011, olikraus@gmail.com |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without modification, |
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are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright notice, this list |
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of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright notice, this |
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list of conditions and the following disclaimer in the documentation and/or other |
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materials provided with the distribution. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifdef __SAM3X8E__ |
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#include <U8glib.h> |
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#include <Arduino.h> |
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#include "../../core/macros.h" |
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void u8g_SetPIOutput_DUE(u8g_t *u8g, uint8_t pin_index) { |
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PIO_Configure(g_APinDescription[u8g->pin_list[pin_index]].pPort, PIO_OUTPUT_1, |
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g_APinDescription[u8g->pin_list[pin_index]].ulPin, g_APinDescription[u8g->pin_list[pin_index]].ulPinConfiguration); // OUTPUT
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} |
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void u8g_SetPILevel_DUE(u8g_t *u8g, uint8_t pin_index, uint8_t level) { |
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volatile Pio* port = g_APinDescription[u8g->pin_list[pin_index]].pPort; |
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uint32_t mask = g_APinDescription[u8g->pin_list[pin_index]].ulPin; |
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if (level) port->PIO_SODR = mask; |
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else port->PIO_CODR = mask; |
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} |
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#define nop() __asm__ __volatile__("nop;\n\t":::) |
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void __delay_4cycles(uint32_t cy) __attribute__ ((weak)); |
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FORCE_INLINE void __delay_4cycles(uint32_t cy) { // +1 cycle
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#if ARCH_PIPELINE_RELOAD_CYCLES<2 |
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#define EXTRA_NOP_CYCLES "nop" |
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#else |
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#define EXTRA_NOP_CYCLES "" |
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#endif |
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__asm__ __volatile__( |
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".syntax unified" "\n\t" // is to prevent CM0,CM1 non-unified syntax
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"loop%=:" "\n\t" |
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" subs %[cnt],#1" "\n\t" |
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EXTRA_NOP_CYCLES "\n\t" |
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" bne loop%=" "\n\t" |
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: [cnt]"+r"(cy) // output: +r means input+output
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: // input:
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: "cc" // clobbers:
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); |
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} |
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Pio *SCK_pPio, *MOSI_pPio; |
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uint32_t SCK_dwMask, MOSI_dwMask; |
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static void spiSend_sw_DUE(uint8_t val) { // 800KHz
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for (uint8_t i = 0; i < 8; i++) { |
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if (val & 0x80) |
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MOSI_pPio->PIO_SODR = MOSI_dwMask; |
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else |
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MOSI_pPio->PIO_CODR = MOSI_dwMask; |
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val = val << 1; |
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__delay_4cycles(2); |
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SCK_pPio->PIO_SODR = SCK_dwMask; |
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__delay_4cycles(22); |
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SCK_pPio->PIO_CODR = SCK_dwMask; |
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} |
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} |
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static uint8_t rs_last_state = 255; |
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static void u8g_com_DUE_st7920_write_byte_sw_spi(uint8_t rs, uint8_t val) { |
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uint8_t i; |
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if ( rs != rs_last_state) { // time to send a command/data byte
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rs_last_state = rs; |
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if ( rs == 0 ) |
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/* command */ |
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spiSend_sw_DUE(0x0f8); |
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else |
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/* data */ |
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spiSend_sw_DUE(0x0fa); |
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for( i = 0; i < 4; i++ ) // give the controller some time to process the data
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u8g_10MicroDelay(); // 2 is bad, 3 is OK, 4 is safe
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} |
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spiSend_sw_DUE(val & 0x0f0); |
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spiSend_sw_DUE(val << 4); |
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} |
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uint8_t u8g_com_HAL_DUE_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) { |
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switch (msg) { |
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case U8G_COM_MSG_INIT: |
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SCK_pPio = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].pPort; |
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SCK_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].ulPin; |
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MOSI_pPio = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].pPort; |
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MOSI_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].ulPin; |
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u8g_SetPILevel_DUE(u8g, U8G_PI_CS, 0); |
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u8g_SetPIOutput_DUE(u8g, U8G_PI_CS); |
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u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 0); |
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u8g_SetPIOutput_DUE(u8g, U8G_PI_SCK); |
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u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 0); |
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u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 1); |
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u8g_SetPIOutput_DUE(u8g, U8G_PI_MOSI); |
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u8g_Delay(5); |
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u8g->pin_list[U8G_PI_A0_STATE] = 0; /* inital RS state: command mode */ |
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break; |
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case U8G_COM_MSG_STOP: |
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break; |
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case U8G_COM_MSG_RESET: |
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if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel_DUE(u8g, U8G_PI_RESET, arg_val); |
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break; |
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case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */ |
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u8g->pin_list[U8G_PI_A0_STATE] = arg_val; |
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break; |
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case U8G_COM_MSG_CHIP_SELECT: |
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if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_CS]) |
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u8g_SetPILevel_DUE(u8g, U8G_PI_CS, arg_val); //note: the st7920 has an active high chip select
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break; |
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case U8G_COM_MSG_WRITE_BYTE: |
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u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val); |
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break; |
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case U8G_COM_MSG_WRITE_SEQ: { |
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uint8_t *ptr = (uint8_t*) arg_ptr; |
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while (arg_val > 0) { |
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u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++); |
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arg_val--; |
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} |
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} |
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break; |
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case U8G_COM_MSG_WRITE_SEQ_P: { |
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uint8_t *ptr = (uint8_t*) arg_ptr; |
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while (arg_val > 0) { |
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u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++); |
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arg_val--; |
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} |
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} |
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break; |
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} |
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return 1; |
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} |
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#pragma GCC reset_options |
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#endif //ARDUINO_ARCH_SAM
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@ -1,276 +0,0 @@ |
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/**
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* Marlin 3D Printer Firmware |
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* |
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* Based on Sprinter and grbl. |
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* |
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*/ |
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/*
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* PLEASE NOTE >>> |
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* We need our custom implementation for Software SPI, as the default implementation |
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* of U8GLIB, when running in an ARM based board, is too fast and the display will not |
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* recognize commands and/or data at such speeds. This implementation autoderives the |
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* required delays to get the maximum possible performance by using the F_CPU macro that |
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* specifies the CPU speed. According to the ST7920 datasheet, the maximum SCLK is 1MHz. |
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*/ |
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#ifndef ULCDST7920_SWSPI_H |
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#define ULCDST7920_SWSPI_H |
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#include "../../inc/MarlinConfig.h" |
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#if ENABLED(U8GLIB_ST7920) |
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#include <U8glib.h> |
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#include "HAL_LCD_com_defines.h" |
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#define ST7920_CLK_PIN LCD_PINS_D4 |
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#define ST7920_DAT_PIN LCD_PINS_ENABLE |
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#define ST7920_CS_PIN LCD_PINS_RS |
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//#define PAGE_HEIGHT 8 //128 byte framebuffer
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#define PAGE_HEIGHT 16 //256 byte framebuffer
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//#define PAGE_HEIGHT 32 //512 byte framebuffer
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#define LCD_PIXEL_WIDTH 128 |
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#define LCD_PIXEL_HEIGHT 64 |
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//set optimization so ARDUINO optimizes this file
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#pragma GCC optimize (3) |
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/* ---------------- Delay Cycles routine -------------- */ |
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#ifdef __arm__ |
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/* https://blueprints.launchpad.net/gcc-arm-embedded/+spec/delay-cycles */ |
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#define nop() __asm__ __volatile__("nop;\n\t":::) |
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FORCE_INLINE static void __delay_4cycles(uint32_t cy) { // +1 cycle
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#if ARCH_PIPELINE_RELOAD_CYCLES<2 |
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#define EXTRA_NOP_CYCLES "nop" |
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#else |
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#define EXTRA_NOP_CYCLES "" |
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#endif |
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__asm__ __volatile__( |
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".syntax unified" "\n\t" // is to prevent CM0,CM1 non-unified syntax
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"loop%=:" "\n\t" |
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" subs %[cnt],#1" "\n\t" |
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EXTRA_NOP_CYCLES "\n\t" |
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" bne loop%=" "\n\t" |
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: [cnt]"+r"(cy) // output: +r means input+output
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: // input:
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: "cc" // clobbers:
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); |
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} |
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FORCE_INLINE static void DELAY_CYCLES(uint32_t x) { |
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if (__builtin_constant_p(x)) { |
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#define MAXNOPS 4 |
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if (x <= (MAXNOPS)) { |
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switch(x) { case 4: nop(); case 3: nop(); case 2: nop(); case 1: nop(); } |
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} |
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else { // because of +1 cycle inside delay_4cycles
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const uint32_t rem = (x - 1) % (MAXNOPS); |
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switch(rem) { case 3: nop(); case 2: nop(); case 1: nop(); } |
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if ((x = (x - 1) / (MAXNOPS))) |
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__delay_4cycles(x); // if need more then 4 nop loop is more optimal
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} |
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} |
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else |
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__delay_4cycles(x / 4); |
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} |
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#ifdef __TEST_DELAY |
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void calibrateTimer() { |
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// Use DWT to calibrate cycles
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uint32_t count = 0; |
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// addresses of registers
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volatile uint32_t *DWT_CONTROL = (uint32_t *)0xE0001000, |
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*DWT_CYCCNT = (uint32_t *)0xE0001004, |
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*DEMCR = (uint32_t *)0xE000EDFC; |
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cli(); |
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// enable the use DWT
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*DEMCR = *DEMCR | 0x01000000; |
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// Reset cycle counter
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*DWT_CYCCNT = 0; |
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// enable cycle counter
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*DWT_CONTROL = *DWT_CONTROL | 1; |
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// Perform a delay of 10000 cycles
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DELAY_CYCLES(10000U); |
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// number of cycles stored in count variable
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count = *DWT_CYCCNT; |
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sei(); |
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SERIAL_ECHO_START(); |
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SERIAL_ECHOLNPAIR("calibrated Cycles: ", (int)count); |
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} |
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#endif // __TEST_DELAY
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#elif defined(__AVR__) |
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#define DELAY_CYCLES(cycles) __builtin_avr_delay_cycles(cycles) |
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#else |
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#error "DELAY_CYCLES not implemented for this architecture." |
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#endif |
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/* ---------------- Delay in nanoseconds and in microseconds */ |
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#define DELAY_NS(x) DELAY_CYCLES( (x) * (F_CPU/1000000) / 1000) |
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#define DELAY_US(x) DELAY_CYCLES( (x) * (F_CPU/1000000)) |
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/* ---------------- ST7920 commands ------------------------ */ |
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#ifdef __arm__ |
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/* ARM: Plain implementation is more than enough */ |
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static void ST7920_SWSPI_SND_8BIT(uint8_t val) { |
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uint8_t n = 8; |
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do { |
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WRITE(ST7920_CLK_PIN, LOW); |
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WRITE(ST7920_DAT_PIN, val & 0x80); |
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DELAY_NS(700); /* RE-ARM requires 700ns to be stable, RAMPS4DUE works with 500ns */ |
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WRITE(ST7920_CLK_PIN, HIGH); |
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DELAY_NS(700); /* RE-ARM requires 700ns to be stable, RAMPS4DUE works with 500ns */ |
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val <<= 1; |
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} while (--n); |
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} |
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#else // !ARM
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/* AVR: Unrolling loop makes sense */ |
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#define ST7920_SND_BIT(nr) \ |
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WRITE(ST7920_CLK_PIN, LOW); \ |
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WRITE(ST7920_DAT_PIN, TEST(val, nr)); \ |
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DELAY_NS(700); \ |
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WRITE(ST7920_CLK_PIN, HIGH); \ |
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DELAY_NS(700); |
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static void ST7920_SWSPI_SND_8BIT(const uint8_t val) { |
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ST7920_SND_BIT(7); // MSBit
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ST7920_SND_BIT(6); //
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ST7920_SND_BIT(5); //
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ST7920_SND_BIT(4); //
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ST7920_SND_BIT(3); //
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ST7920_SND_BIT(2); //
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ST7920_SND_BIT(1); //
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ST7920_SND_BIT(0); // LSBit
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} |
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#endif // !ARM
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#define ST7920_CS() { WRITE(ST7920_CS_PIN,1); DELAY_NS(200); } |
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#define ST7920_NCS() { WRITE(ST7920_CS_PIN,0); } |
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#define ST7920_SET_CMD() { ST7920_SWSPI_SND_8BIT(0xF8); DELAY_US(3); } |
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#define ST7920_SET_DAT() { ST7920_SWSPI_SND_8BIT(0xFA); DELAY_US(3); } |
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#define ST7920_WRITE_BYTE(a) { ST7920_SWSPI_SND_8BIT((uint8_t)((a)&0xF0u)); ST7920_SWSPI_SND_8BIT((uint8_t)((a)<<4u)); DELAY_US(3); } |
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#define ST7920_WRITE_BYTES(p,l) { for (uint8_t i = l + 1; --i;) { ST7920_SWSPI_SND_8BIT(*p&0xF0); ST7920_SWSPI_SND_8BIT(*p<<4); p++; } DELAY_US(3); } |
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uint8_t u8g_dev_st7920_custom_sw_spi_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) { |
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uint8_t i, y; |
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switch (msg) { |
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case U8G_DEV_MSG_INIT: { |
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/* Set to output and write */ |
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OUT_WRITE(ST7920_CS_PIN, LOW); |
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OUT_WRITE(ST7920_DAT_PIN, LOW); |
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OUT_WRITE(ST7920_CLK_PIN, HIGH); |
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ST7920_CS(); |
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u8g_Delay(120); //initial delay for boot up
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ST7920_SET_CMD(); |
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ST7920_WRITE_BYTE(0x08); //display off, cursor+blink off
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ST7920_WRITE_BYTE(0x01); //clear CGRAM ram
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u8g_Delay(15); //delay for CGRAM clear
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ST7920_WRITE_BYTE(0x3E); //extended mode + GDRAM active
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for (y = 0; y < (LCD_PIXEL_HEIGHT) / 2; y++) { //clear GDRAM
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ST7920_WRITE_BYTE(0x80 | y); //set y
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ST7920_WRITE_BYTE(0x80); //set x = 0
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ST7920_SET_DAT(); |
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for (i = 0; i < 2 * (LCD_PIXEL_WIDTH) / 8; i++) //2x width clears both segments
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ST7920_WRITE_BYTE(0); |
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ST7920_SET_CMD(); |
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} |
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ST7920_WRITE_BYTE(0x0C); //display on, cursor+blink off
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ST7920_NCS(); |
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} |
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break; |
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case U8G_DEV_MSG_STOP: |
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break; |
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case U8G_DEV_MSG_PAGE_NEXT: { |
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u8g_pb_t* pb = (u8g_pb_t*)(dev->dev_mem); |
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y = pb->p.page_y0; |
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uint8_t* ptr = (uint8_t*)pb->buf; |
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ST7920_CS(); |
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for (i = 0; i < PAGE_HEIGHT; i ++) { |
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ST7920_SET_CMD(); |
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if (y < 32) { |
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ST7920_WRITE_BYTE(0x80 | y); //y
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ST7920_WRITE_BYTE(0x80); //x=0
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} |
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else { |
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ST7920_WRITE_BYTE(0x80 | (y - 32)); //y
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ST7920_WRITE_BYTE(0x80 | 8); //x=64
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} |
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ST7920_SET_DAT(); |
|||
ST7920_WRITE_BYTES(ptr, (LCD_PIXEL_WIDTH) / 8); //ptr is incremented inside of macro
|
|||
y++; |
|||
} |
|||
|
|||
ST7920_NCS(); |
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} |
|||
break; |
|||
} |
|||
#if PAGE_HEIGHT == 8 |
|||
return u8g_dev_pb8h1_base_fn(u8g, dev, msg, arg); |
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#elif PAGE_HEIGHT == 16 |
|||
return u8g_dev_pb16h1_base_fn(u8g, dev, msg, arg); |
|||
#else |
|||
return u8g_dev_pb32h1_base_fn(u8g, dev, msg, arg); |
|||
#endif |
|||
} |
|||
|
|||
static uint8_t u8g_dev_st7920_128x64_custom_sw_spi_buf[(LCD_PIXEL_WIDTH) * (PAGE_HEIGHT) / 8] U8G_NOCOMMON; |
|||
static u8g_pb_t u8g_dev_st7920_128x64_custom_sw_spi_pb = {{PAGE_HEIGHT, LCD_PIXEL_HEIGHT, 0, 0, 0}, LCD_PIXEL_WIDTH, u8g_dev_st7920_128x64_custom_sw_spi_buf}; |
|||
u8g_dev_t u8g_dev_st7920_128x64_custom_sw_spi = {u8g_dev_st7920_custom_sw_spi_128x64_fn, &u8g_dev_st7920_128x64_custom_sw_spi_pb, &u8g_com_null_fn}; |
|||
|
|||
#pragma GCC reset_options |
|||
|
|||
#endif // U8GLIB_ST7920
|
|||
#endif // ULCDST7920_SWSPI_H
|
|||
Loading…
Reference in new issue