bissen21/Marlin_Firmware
1
0
Fork 0
Code Issues Pull Requests Projects Releases 4 Wiki Activity

🩹 Use <SoftwareSPI.h> in MAX31865 lib (#22618)

Browse Source
This commit is contained in:
Jin 2021-08-26 06:33:08 +08:00 committed by Scott Lahteine
parent 125c5bc345
commit a0ebe7c8ff
2 changed files with 10 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
Marlin/src/libs/MAX31865.cpp
View File

@ -44,7 +44,7 @@
//#define MAX31865_DEBUG //#define MAX31865_DEBUG
//#define MAX31865_DEBUG_SPI //#define MAX31865_DEBUG_SPI
//TODO: switch to SPIclass/SoftSPI #include <SoftwareSPI.h>
#include "../inc/MarlinConfig.h" #include "../inc/MarlinConfig.h"
@ -62,7 +62,7 @@ SPISettings MAX31865::spiConfig = SPISettings(
500000 500000
#endif #endif
, MSBFIRST , MSBFIRST
, SPI_MODE_1 // CPOL0 CPHA1 , SPI_MODE1 // CPOL0 CPHA1
); );
#ifndef LARGE_PINMAP #ifndef LARGE_PINMAP
@ -157,10 +157,9 @@ void MAX31865::begin(max31865_numwires_t wires, float zero, float ref) {
#ifdef MAX31865_DEBUG #ifdef MAX31865_DEBUG
SERIAL_ECHOLN("Initializing MAX31865 Software SPI"); SERIAL_ECHOLN("Initializing MAX31865 Software SPI");
#endif #endif
OUT_WRITE(_sclk, LOW); swSpiBegin(_sclk, _miso, _mosi);
SET_OUTPUT(_mosi);
SET_INPUT(_miso);
} else { } else {
// start and configure hardware SPI // start and configure hardware SPI
#ifdef MAX31865_DEBUG #ifdef MAX31865_DEBUG
@ -170,6 +169,9 @@ void MAX31865::begin(max31865_numwires_t wires, float zero, float ref) {
SPI.begin(); SPI.begin();
} }
// SPI Begin must be called first, then init
_spi_speed = swSpiInit(SPI_QUARTER_SPEED, _sclk, _mosi);
setWires(wires); setWires(wires);
enableBias(false); enableBias(false);
autoConvert(false); autoConvert(false);
@ -484,17 +486,7 @@ uint8_t MAX31865::spixfer(uint8_t x) {
if (_sclk == TERN(LARGE_PINMAP, -1UL, -1)) if (_sclk == TERN(LARGE_PINMAP, -1UL, -1))
return SPI.transfer(x); return SPI.transfer(x);
uint8_t reply = 0; return swSpiTransfer(x, _spi_speed, _sclk, _miso, _mosi);
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;
}
return reply;
} }
#endif // HAS_MAX31865 && !LIB_USR_MAX31865 #endif // HAS_MAX31865 && !LIB_USR_MAX31865

1
Marlin/src/libs/MAX31865.h
View File

@ -90,6 +90,7 @@ private:
static SPISettings spiConfig; static SPISettings spiConfig;
TERN(LARGE_PINMAP, uint32_t, uint8_t) _sclk, _miso, _mosi, _cs; TERN(LARGE_PINMAP, uint32_t, uint8_t) _sclk, _miso, _mosi, _cs;
uint8_t _spi_speed;
float Rzero, Rref; float Rzero, Rref;
void setConfig(uint8_t config, bool enable); void setConfig(uint8_t config, bool enable);