本帖最后由 reptt 于 2025-4-8 18:14 编辑
代码如下，恳请大佬们帮助#include "bsp_spi.h"
static void INT_SRC_DMA1_TC0_IrqCallback(void);
//SPIx Config
void bsp_SPIxCfg(void)
{
stc_spi_init_t stcSpiInit;
stc_spi_delay_t stcSpiDelay;
stc_gpio_init_t stcGpioInit;
(void)GPIO_StructInit(&stcGpioInit);
stcGpioInit.u16PinDrv = PIN_HIGH_DRV;
(void)GPIO_Init(GPIO_PORT_A, GPIO_PIN_04, &stcGpioInit);
(void)GPIO_Init(GPIO_PORT_A, GPIO_PIN_05, &stcGpioInit);
(void)GPIO_Init(GPIO_PORT_A, GPIO_PIN_07, &stcGpioInit);
GPIO_SetFunc(GPIO_PORT_A,GPIO_PIN_04,GPIO_FUNC_41);//SPI1-MISO
GPIO_SetFunc(GPIO_PORT_A,GPIO_PIN_05,GPIO_FUNC_40);//SPI1-MOSI
GPIO_SetFunc(GPIO_PORT_A,GPIO_PIN_07,GPIO_FUNC_43);//SPI1-SCK
/* Enable SPI1 clock */
FCG_Fcg1PeriphClockCmd(FCG1_PERIPH_SPI1, ENABLE);
/************************* Configure SPI1***************************/
SPI_StructInit(&stcSpiInit);
stcSpiInit.u32WireMode = SPI_3_WIRE;
stcSpiInit.u32TransMode = SPI_SEND_ONLY;
stcSpiInit.u32MasterSlave = SPI_MASTER;
stcSpiInit.u32SpiMode = SPI_MD_1;
stcSpiInit.u32BaudRatePrescaler = SPI_BR_CLK_DIV256;
stcSpiInit.u32DataBits = SPI_DATA_SIZE_8BIT;
stcSpiInit.u32FirstBit = SPI_FIRST_MSB;
//stcSpiInit.u32SuspendMode = SPI_COM_SUSP_FUNC_OFF;
stcSpiInit.u32FrameLevel = SPI_1_FRAME;
(void)SPI_Init(CM_SPI1, &stcSpiInit);
SPI_DelayStructInit(&stcSpiDelay);
stcSpiDelay.u32IntervalDelay = SPI_INTERVAL_TIME_1SCK;
stcSpiDelay.u32ReleaseDelay = SPI_RELEASE_TIME_1SCK;
stcSpiDelay.u32SetupDelay = SPI_SETUP_TIME_1SCK;
(void)SPI_DelayTimeConfig(CM_SPI1, &stcSpiDelay);
/* Enable SPI1 */
SPI_Cmd(CM_SPI1, ENABLE);
}
static void Spi_DmaCfg(void)
{
/* DMA1 FCG enable */
FCG_Fcg0PeriphClockCmd(FCG0_PERIPH_DMA1, ENABLE);
/* AOS FCG enable */
FCG_Fcg0PeriphClockCmd(FCG0_PERIPH_AOS, ENABLE);
stc_dma_init_t stcDmaInit;
/* Base Config */
(void)DMA_StructInit(&stcDmaInit);
stcDmaInit.u32IntEn = DMA_INT_ENABLE;
stcDmaInit.u32BlockSize = 1UL;
stcDmaInit.u32TransCount = 0UL;
stcDmaInit.u32DataWidth = DMA_DATAWIDTH_8BIT;
stcDmaInit.u32DestAddr = (uint32_t)(&CM_SPI1->DR);
stcDmaInit.u32SrcAddr = 0;
stcDmaInit.u32SrcAddrInc = DMA_SRC_ADDR_INC;
stcDmaInit.u32DestAddrInc = DMA_DEST_ADDR_FIX;
(void)DMA_Init(CM_DMA1, DMA_CH0, &stcDmaInit);
/* DMA1_CH0 Config */
AOS_SetTriggerEventSrc(AOS_DMA1_0, EVT_SRC_SPI1_SPRI);
/* IRQ sign-in */
stc_irq_signin_config_t stcIrq;
stcIrq.enIntSrc = INT_SRC_DMA1_TC0;
stcIrq.enIRQn = INT038_IRQn;
stcIrq.pfnCallback = &INT_SRC_DMA1_TC0_IrqCallback;
(void)INTC_IrqSignIn(&stcIrq);
/* NVIC config */
NVIC_ClearPendingIRQ(stcIrq.enIRQn);
NVIC_SetPriority(stcIrq.enIRQn, DDL_IRQ_PRIO_15);
NVIC_EnableIRQ(stcIrq.enIRQn);
/* DMA module enable */
DMA_Cmd(CM_DMA1, ENABLE);
/* DMA channel enable */
(void)DMA_ChCmd(CM_DMA1, DMA_CH0, ENABLE);
DMA_ClearTransCompleteStatus(CM_DMA1, DMA_INT_BTC_CH0);
}
/**
* @brief SPI configure.
* @param None
* @retval None
*/
void SPI_DMA_SEND(uint8_t * buf,uint8_t len)
{
while(DMA_GetTransCompleteStatus(CM_DMA1,DMA_INT_BTC_CH0)==SET){};
DMA_SetSrcAddr(CM_DMA1, DMA_CH0, (uint32_t)(&buf));
DMA_SetTransCount(CM_DMA1, DMA_CH0, len);
/* Enable DMA channel */
DMA_ChCmd(CM_DMA1, DMA_CH0, ENABLE);
}
/* INT_SRC_DMA1_BTC0 Callback. */
static void INT_SRC_DMA1_TC0_IrqCallback(void)
{
//add your codes here
DMA_ClearTransCompleteStatus(CM_DMA1, DMA_INT_TC_CH0);//DMA_INT_TC_CH0,DMA_INT_BTC_CH0
}
void bsp_spi_init(void)
{
bsp_SPIxCfg();
Spi_DmaCfg();
}
|
-
|
楼主
