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Increase SPI Speed on LPC. Color and Classic UI for MKS SGEN L. (#19945)

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This commit is contained in:
Victor Oliveira
2020-11-01 23:15:06 -03:00
committed by GitHub
parent 05033bb9d6
commit 5deca5a18f
4 changed files with 65 additions and 11 deletions
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4
Marlin/src/HAL/LPC1768/HAL_SPI.cpp
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@ -357,8 +357,8 @@ void SPIClass::setDataSize(uint32_t ds) {
void SPIClass::updateSettings() {
//SSP_DeInit(_currentSetting->spi_d); //todo: need force de init?!
// divide PCLK by 2 for SSP0
CLKPWR_SetPCLKDiv(_currentSetting->spi_d == LPC_SSP0 ? CLKPWR_PCLKSEL_SSP0 : CLKPWR_PCLKSEL_SSP1, CLKPWR_PCLKSEL_CCLK_DIV_2);
// Divide PCLK by 2 for SSP0
//CLKPWR_SetPCLKDiv(_currentSetting->spi_d == LPC_SSP0 ? CLKPWR_PCLKSEL_SSP0 : CLKPWR_PCLKSEL_SSP1, CLKPWR_PCLKSEL_CCLK_DIV_2);
SSP_CFG_Type HW_SPI_init; // data structure to hold init values
SSP_ConfigStructInit(&HW_SPI_init); // set values for SPI mode

15
Marlin/src/HAL/LPC1768/include/SPI.h
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@ -37,13 +37,14 @@
#define DATA_SIZE_8BIT SSP_DATABIT_8
#define DATA_SIZE_16BIT SSP_DATABIT_16
#define SPI_CLOCK_DIV2 8333333 //(SCR: 2) desired: 8,000,000 actual: 8,333,333 +4.2% SPI_FULL_SPEED
#define SPI_CLOCK_DIV4 4166667 //(SCR: 5) desired: 4,000,000 actual: 4,166,667 +4.2% SPI_HALF_SPEED
#define SPI_CLOCK_DIV8 2083333 //(SCR: 11) desired: 2,000,000 actual: 2,083,333 +4.2% SPI_QUARTER_SPEED
#define SPI_CLOCK_DIV16 1000000 //(SCR: 24) desired: 1,000,000 actual: 1,000,000 SPI_EIGHTH_SPEED
#define SPI_CLOCK_DIV32 500000 //(SCR: 49) desired: 500,000 actual: 500,000 SPI_SPEED_5
#define SPI_CLOCK_DIV64 250000 //(SCR: 99) desired: 250,000 actual: 250,000 SPI_SPEED_6
#define SPI_CLOCK_DIV128 125000 //(SCR:199) desired: 125,000 actual: 125,000 Default from HAL.h
#define SPI_CLOCK_MAX_TFT 30000000UL
#define SPI_CLOCK_DIV2 8333333 //(SCR: 2) desired: 8,000,000 actual: 8,333,333 +4.2% SPI_FULL_SPEED
#define SPI_CLOCK_DIV4 4166667 //(SCR: 5) desired: 4,000,000 actual: 4,166,667 +4.2% SPI_HALF_SPEED
#define SPI_CLOCK_DIV8 2083333 //(SCR: 11) desired: 2,000,000 actual: 2,083,333 +4.2% SPI_QUARTER_SPEED
#define SPI_CLOCK_DIV16 1000000 //(SCR: 24) desired: 1,000,000 actual: 1,000,000 SPI_EIGHTH_SPEED
#define SPI_CLOCK_DIV32 500000 //(SCR: 49) desired: 500,000 actual: 500,000 SPI_SPEED_5
#define SPI_CLOCK_DIV64 250000 //(SCR: 99) desired: 250,000 actual: 250,000 SPI_SPEED_6
#define SPI_CLOCK_DIV128 125000 //(SCR:199) desired: 125,000 actual: 125,000 Default from HAL.h
#define SPI_CLOCK_MAX SPI_CLOCK_DIV2

4
Marlin/src/HAL/LPC1768/tft/tft_spi.cpp
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@ -89,7 +89,7 @@ void TFT_SPI::Init() {
#elif TFT_MISO_PIN == BOARD_SPI2_MISO_PIN
SPIx.setModule(2);
#endif
SPIx.setClock(SPI_CLOCK_MAX);
SPIx.setClock(SPI_CLOCK_MAX_TFT);
SPIx.setBitOrder(MSBFIRST);
SPIx.setDataMode(SPI_MODE0);
}
@ -125,7 +125,7 @@ uint32_t TFT_SPI::ReadID(uint16_t Reg) {
}
DataTransferEnd();
SPIx.setClock(SPI_CLOCK_MAX);
SPIx.setClock(SPI_CLOCK_MAX_TFT);
#endif
return data >> 7;