andrey
/
Marlin_FB4S
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

🍻 Preliminary fix for Max31865 SPI (#22682) 

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>
vanilla_fb_2.0.x
Jin 3 years ago
committed by Scott Lahteine
parent
57bd04b6ce
commit
f32e19e1c6
6 changed files with 90 additions and 71 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 15
      Marlin/src/HAL/shared/Delay.h
  2. 2
      Marlin/src/HAL/shared/Marduino.h
  3. 125
      Marlin/src/libs/MAX31865.cpp
  4. 11
      Marlin/src/libs/MAX31865.h
  5. 3
      buildroot/tests/LPC1769
  6. 5
      buildroot/tests/teensy41

15
Marlin/src/HAL/shared/Delay.h
View File

@ -92,6 +92,12 @@ void calibrate_delay_loop();
#define DELAY_CYCLES(X) do { SmartDelay<IS_CONSTEXPR(X), IS_CONSTEXPR(X) ? X : 0> _smrtdly_X(X); } while(0)
#if GCC_VERSION <= 70000
#define DELAY_CYCLES_VAR(X) DelayCycleFnc(X)
#else
#define DELAY_CYCLES_VAR DELAY_CYCLES
#endif
// For delay in microseconds, no smart delay selection is required, directly call the delay function
// Teensy compiler is too old and does not accept smart delay compile-time / run-time selection correctly
#define DELAY_US(x) DelayCycleFnc((x) * ((F_CPU) / 1000000UL))
@ -200,9 +206,12 @@ void calibrate_delay_loop();
#endif
#if ENABLED(DELAY_NS_ROUND_DOWN)
#define DELAY_NS(x) DELAY_CYCLES((x) * ((F_CPU) / 1000000UL) / 1000UL) // floor
#define _NS_TO_CYCLES(x) ( (x) * ((F_CPU) / 1000000UL) / 1000UL) // floor
#elif ENABLED(DELAY_NS_ROUND_CLOSEST)
#define DELAY_NS(x) DELAY_CYCLES(((x) * ((F_CPU) / 1000000UL) + 500) / 1000UL) // round
#define _NS_TO_CYCLES(x) (((x) * ((F_CPU) / 1000000UL) + 500) / 1000UL) // round
#else
#define DELAY_NS(x) DELAY_CYCLES(((x) * ((F_CPU) / 1000000UL) + 999) / 1000UL) // "ceil"
#define _NS_TO_CYCLES(x) (((x) * ((F_CPU) / 1000000UL) + 999) / 1000UL) // "ceil"
#endif
#define DELAY_NS(x) DELAY_CYCLES(_NS_TO_CYCLES(x))
#define DELAY_NS_VAR(x) DELAY_CYCLES_VAR(_NS_TO_CYCLES(x))

2
Marlin/src/HAL/shared/Marduino.h
View File

@ -39,7 +39,7 @@
#define DISABLED(V...) DO(DIS,&&,V)
#undef _BV
#define _BV(b) (1UL << (b))
#define _BV(b) (1 << (b))
#ifndef SBI
#define SBI(A,B) (A |= _BV(B))
#endif

125
Marlin/src/libs/MAX31865.cpp
View File

@ -48,20 +48,17 @@
#if HAS_MAX31865 && !USE_ADAFRUIT_MAX31865
//#include <SoftwareSPI.h> // TODO: switch to SPIclass/SoftSPI
#include "MAX31865.h"
#ifdef TARGET_LPC1768
#include <SoftwareSPI.h>
#endif
// The maximum speed the MAX31865 can do is 5 MHz
SPISettings MAX31865::spiConfig = SPISettings(
#if defined(TARGET_LPC1768)
SPI_QUARTER_SPEED
#elif defined(ARDUINO_ARCH_STM32)
SPI_CLOCK_DIV4
#else
500000
#endif
, MSBFIRST
, SPI_MODE_1 // CPOL0 CPHA1
TERN(TARGET_LPC1768, SPI_QUARTER_SPEED, TERN(ARDUINO_ARCH_STM32, SPI_CLOCK_DIV4, 500000)),
MSBFIRST,
SPI_MODE1 // CPOL0 CPHA1
);
#ifndef LARGE_PINMAP
@ -93,7 +90,7 @@ SPISettings MAX31865::spiConfig = SPISettings(
_sclk = _miso = _mosi = -1;
}
#else
#else // LARGE_PINMAP
/**
* Create the interface object using software (bitbang) SPI for PIN values
@ -106,9 +103,7 @@ SPISettings MAX31865::spiConfig = SPISettings(
* @param spi_clk the SPI clock pin to use
* @param pin_mapping set to 1 for positive pin values
*/
MAX31865::MAX31865(uint32_t spi_cs, uint32_t spi_mosi,
uint32_t spi_miso, uint32_t spi_clk,
uint8_t pin_mapping) {
MAX31865::MAX31865(uint32_t spi_cs, uint32_t spi_mosi, uint32_t spi_miso, uint32_t spi_clk, uint8_t pin_mapping) {
_cs = spi_cs;
_mosi = spi_mosi;
_miso = spi_miso;
@ -130,14 +125,12 @@ SPISettings MAX31865::spiConfig = SPISettings(
#endif // LARGE_PINMAP
/**
*
* Instance & Class methods
*
*/
/**
* Initialize the SPI interface and set the number of RTD wires used
*
@ -152,22 +145,13 @@ void MAX31865::begin(max31865_numwires_t wires, float zero, float ref) {
OUT_WRITE(_cs, HIGH);
if (_sclk != TERN(LARGE_PINMAP, -1UL, -1)) {
// Define pin modes for Software SPI
#ifdef MAX31865_DEBUG
SERIAL_ECHOLN("Initializing MAX31865 Software SPI");
#endif
OUT_WRITE(_sclk, LOW);
SET_OUTPUT(_mosi);
SET_INPUT(_miso);
softSpiBegin(SPI_QUARTER_SPEED); // Define pin modes for Software SPI
}
else {
// Start and configure hardware SPI
#ifdef MAX31865_DEBUG
SERIAL_ECHOLN("Initializing MAX31865 Hardware SPI");
SERIAL_ECHOLNPGM("Initializing MAX31865 Hardware SPI");
#endif
SPI.begin();
SPI.begin(); // Start and configure hardware SPI
}
setWires(wires);
@ -176,25 +160,15 @@ void MAX31865::begin(max31865_numwires_t wires, float zero, float ref) {
clearFault();
#ifdef MAX31865_DEBUG_SPI
#ifndef LARGE_PINMAP
SERIAL_ECHOLNPGM(
"Regular begin call with _cs: ", _cs,
" _miso: ", _miso,
" _sclk: ", _sclk,
" _mosi: ", _mosi
);
#else
SERIAL_ECHOLNPGM(
"LARGE_PINMAP begin call with _cs: ", _cs,
" _miso: ", _miso,
" _sclk: ", _sclk,
" _mosi: ", _mosi
);
#endif // LARGE_PINMAP
SERIAL_ECHOLNPGM("config: ", readRegister8(MAX31856_CONFIG_REG));
SERIAL_EOL();
#endif // MAX31865_DEBUG_SPI
SERIAL_ECHOLNPGM(
TERN(LARGE_PINMAP, "LARGE_PINMAP", "Regular")
" begin call with _cs: ", _cs,
" _miso: ", _miso,
" _sclk: ", _sclk,
" _mosi: ", _mosi,
" config: ", readRegister8(MAX31856_CONFIG_REG)
);
#endif
}
/**
@ -371,7 +345,6 @@ float MAX31865::temperature(float Rrtd) {
// private:
//
/**
* Set a value in the configuration register.
*
@ -432,10 +405,15 @@ void MAX31865::readRegisterN(uint8_t addr, uint8_t buffer[], uint8_t n) {
WRITE(_sclk, LOW);
WRITE(_cs, LOW);
spixfer(addr);
#ifdef TARGET_LPC1768
DELAY_CYCLES(_spi_speed);
#endif
spiTransfer(addr);
while (n--) {
buffer[0] = spixfer(0xFF);
buffer[0] = spiTransfer(0xFF);
#ifdef MAX31865_DEBUG_SPI
SERIAL_ECHOLNPGM("buffer read ", n, " data: ", buffer[0]);
#endif
@ -462,8 +440,12 @@ void MAX31865::writeRegister8(uint8_t addr, uint8_t data) {
WRITE(_cs, LOW);
spixfer(addr | 0x80); // make sure top bit is set
spixfer(data);
#ifdef TARGET_LPC1768
DELAY_CYCLES(_spi_speed);
#endif
spiTransfer(addr | 0x80); // make sure top bit is set
spiTransfer(data);
if (_sclk == TERN(LARGE_PINMAP, -1UL, -1))
SPI.endTransaction();
@ -480,21 +462,38 @@ void MAX31865::writeRegister8(uint8_t addr, uint8_t data) {
* @param x an 8-bit chunk of data to write
* @return the 8-bit response
*/
uint8_t MAX31865::spixfer(uint8_t x) {
uint8_t MAX31865::spiTransfer(uint8_t x) {
if (_sclk == TERN(LARGE_PINMAP, -1UL, -1))
return SPI.transfer(x);
uint8_t reply = 0;
for (int i = 7; i >= 0; i--) {
reply <<= 1;
WRITE(_sclk, HIGH);
WRITE(_mosi, x & (1 << i));
WRITE(_sclk, LOW);
if (READ(_miso))
reply |= 1;
}
#ifdef TARGET_LPC1768
return swSpiTransfer(x, _spi_speed, _sclk, _miso, _mosi);
#else
uint8_t reply = 0;
for (int i = 7; i >= 0; i--) {
WRITE(_sclk, HIGH); DELAY_NS_VAR(_spi_delay);
reply <<= 1;
WRITE(_mosi, x & _BV(i)); DELAY_NS_VAR(_spi_delay);
if (READ(_miso)) reply |= 1;
WRITE(_sclk, LOW); DELAY_NS_VAR(_spi_delay);
}
return reply;
#endif
}
return reply;
void MAX31865::softSpiBegin(const uint8_t spi_speed) {
#ifdef MAX31865_DEBUG
SERIAL_ECHOLNPGM("Initializing MAX31865 Software SPI");
#endif
#ifdef TARGET_LPC1768
swSpiBegin(_sclk, _miso, _mosi);
_spi_speed = swSpiInit(spi_speed, _sclk, _mosi);
#else
_spi_delay = (100UL << spi_speed) / 3; // Calculate delay in ns. Top speed is ~10MHz, or 100ns delay between bits.
OUT_WRITE(_sclk, LOW);
SET_OUTPUT(_mosi);
SET_INPUT(_miso);
#endif
}
#endif // HAS_MAX31865 && !USE_ADAFRUIT_MAX31865

11
Marlin/src/libs/MAX31865.h
View File

@ -90,6 +90,13 @@ private:
static SPISettings spiConfig;
TERN(LARGE_PINMAP, uint32_t, uint8_t) _sclk, _miso, _mosi, _cs;
#ifdef TARGET_LPC1768
uint8_t _spi_speed;
#else
uint16_t _spi_delay;
#endif
float Rzero, Rref;
void setConfig(uint8_t config, bool enable);
@ -99,7 +106,9 @@ private:
uint16_t readRegister16(uint8_t addr);
void writeRegister8(uint8_t addr, uint8_t reg);
uint8_t spixfer(uint8_t addr);
uint8_t spiTransfer(uint8_t addr);
void softSpiBegin(const uint8_t spi_speed);
public:
#ifdef LARGE_PINMAP

3
buildroot/tests/LPC1769
View File

@ -14,11 +14,12 @@ exec_test $1 $2 "Azteeg X5GT Example Configuration" "$3"
restore_configs
opt_set MOTHERBOARD BOARD_SMOOTHIEBOARD \
EXTRUDERS 2 TEMP_SENSOR_1 -1 TEMP_SENSOR_BED 5 \
EXTRUDERS 2 TEMP_SENSOR_0 -5 TEMP_SENSOR_1 -1 TEMP_SENSOR_BED 5 TEMP_0_CS_PIN P1_29 \
GRID_MAX_POINTS_X 16 \
NOZZLE_CLEAN_START_POINT "{ { 10, 10, 3 }, { 10, 10, 3 } }" \
NOZZLE_CLEAN_END_POINT "{ { 10, 20, 3 }, { 10, 20, 3 } }"
opt_enable TFTGLCD_PANEL_SPI SDSUPPORT ADAPTIVE_FAN_SLOWING NO_FAN_SLOWING_IN_PID_TUNING \
MAX31865_SENSOR_OHMS_0 MAX31865_CALIBRATION_OHMS_0 \
FIX_MOUNTED_PROBE AUTO_BED_LEVELING_BILINEAR G29_RETRY_AND_RECOVER Z_MIN_PROBE_REPEATABILITY_TEST DEBUG_LEVELING_FEATURE \
BABYSTEPPING BABYSTEP_XY BABYSTEP_ZPROBE_OFFSET LEVEL_CORNERS_USE_PROBE LEVEL_CORNERS_VERIFY_RAISED \
PRINTCOUNTER NOZZLE_PARK_FEATURE NOZZLE_CLEAN_FEATURE SLOW_PWM_HEATERS PIDTEMPBED EEPROM_SETTINGS INCH_MODE_SUPPORT TEMPERATURE_UNITS_SUPPORT \

5
buildroot/tests/teensy41
View File

@ -15,12 +15,13 @@ exec_test $1 $2 "Teensy4.1 with default config" "$3"
#
restore_configs
opt_set MOTHERBOARD BOARD_TEENSY41 \
EXTRUDERS 2 TEMP_SENSOR_0 1 TEMP_SENSOR_1 5 TEMP_SENSOR_BED 1 \
EXTRUDERS 2 TEMP_SENSOR_0 -5 TEMP_SENSOR_1 5 TEMP_SENSOR_BED 1 TEMP_0_CS_PIN 23 \
I2C_SLAVE_ADDRESS 63 \
GRID_MAX_POINTS_X 16 \
NOZZLE_CLEAN_START_POINT "{ { 10, 10, 3 }, { 10, 10, 3 } }" \
NOZZLE_CLEAN_END_POINT "{ { 10, 20, 3 }, { 10, 20, 3 } }"
opt_enable EXTENSIBLE_UI LCD_INFO_MENU SDSUPPORT SDCARD_SORT_ALPHA \
opt_enable MAX31865_SENSOR_OHMS_0 MAX31865_CALIBRATION_OHMS_0 \
EXTENSIBLE_UI LCD_INFO_MENU SDSUPPORT SDCARD_SORT_ALPHA \
FILAMENT_LCD_DISPLAY CALIBRATION_GCODE BAUD_RATE_GCODE \
FIX_MOUNTED_PROBE Z_SAFE_HOMING AUTO_BED_LEVELING_BILINEAR Z_MIN_PROBE_REPEATABILITY_TEST DEBUG_LEVELING_FEATURE \
BABYSTEPPING BABYSTEP_XY BABYSTEP_ZPROBE_OFFSET \

Write Preview
Loading…
Cancel
Save