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⚡️ SPI+DMA+interrupt method (STM32 / MKS UI) (#23464)

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This commit is contained in:
Sola
2022-01-16 13:07:37 +08:00
committed by Scott Lahteine
parent 01cb7c19f9
commit a80cafbcfc
8 changed files with 110 additions and 12 deletions
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24
Marlin/src/HAL/STM32/tft/tft_spi.cpp
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@ -242,5 +242,29 @@ void TFT_SPI::TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Coun
Abort();
}
#if ENABLED(USE_SPI_DMA_TC)
void TFT_SPI::TransmitDMA_IT(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) {
DMAtx.Init.MemInc = MemoryIncrease;
HAL_DMA_Init(&DMAtx);
if (TFT_MISO_PIN == TFT_MOSI_PIN)
SPI_1LINE_TX(&SPIx);
DataTransferBegin();
HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
HAL_DMA_Start_IT(&DMAtx, (uint32_t)Data, (uint32_t)&(SPIx.Instance->DR), Count);
__HAL_SPI_ENABLE(&SPIx);
SET_BIT(SPIx.Instance->CR2, SPI_CR2_TXDMAEN); // Enable Tx DMA Request
}
extern "C" void DMA2_Stream3_IRQHandler(void) { HAL_DMA_IRQHandler(&TFT_SPI::DMAtx); }
#endif
#endif // HAS_SPI_TFT
#endif // HAL_STM32

18
Marlin/src/HAL/STM32/tft/tft_spi.h
View File

@ -36,20 +36,25 @@
#define LCD_READ_ID4 0xD3 // Read display identification information (0xD3 on ILI9341)
#endif
#define DATASIZE_8BIT SPI_DATASIZE_8BIT
#define DATASIZE_16BIT SPI_DATASIZE_16BIT
#define TFT_IO_DRIVER TFT_SPI
#define DATASIZE_8BIT SPI_DATASIZE_8BIT
#define DATASIZE_16BIT SPI_DATASIZE_16BIT
#define TFT_IO_DRIVER TFT_SPI
class TFT_SPI {
private:
static SPI_HandleTypeDef SPIx;
static DMA_HandleTypeDef DMAtx;
static uint32_t ReadID(uint16_t Reg);
static void Transmit(uint16_t Data);
static void TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count);
#if ENABLED(USE_SPI_DMA_TC)
static void TransmitDMA_IT(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count);
#endif
public:
static DMA_HandleTypeDef DMAtx;
static void Init();
static uint32_t GetID();
static bool isBusy();
@ -63,6 +68,11 @@ public:
static void WriteReg(uint16_t Reg) { WRITE(TFT_A0_PIN, LOW); Transmit(Reg); WRITE(TFT_A0_PIN, HIGH); }
static void WriteSequence(uint16_t *Data, uint16_t Count) { TransmitDMA(DMA_MINC_ENABLE, Data, Count); }
#if ENABLED(USE_SPI_DMA_TC)
static void WriteSequenceIT(uint16_t *Data, uint16_t Count) { TransmitDMA_IT(DMA_MINC_ENABLE, Data, Count); }
#endif
static void WriteMultiple(uint16_t Color, uint16_t Count) { static uint16_t Data; Data = Color; TransmitDMA(DMA_MINC_DISABLE, &Data, Count); }
static void WriteMultiple(uint16_t Color, uint32_t Count) {
static uint16_t Data; Data = Color;