GD32H737 SPI datasize = 16 bit时无法收发 Hi雪飘人间2024-08-12这段代码执行的是SPI收发功能,使用仿真器debug时会停在spi_i2s_data_receive处(等待接收标志位),但是如果把datasize改成8bit就能正常收发数据,请问是什么原因呢? uint32_t Spi_Transfer16(SPI_BusDef *spi,
使用仿真器debug时会停在spi_i2s_data_receive处（等待接收标志位），但是如果把datasize改成8bit就能...
uint32_t DataSize Specifies the SPI data size. This parameter can be a value of SPI Data Size uint32_t CLKPolarity Specifies the serial clock steady state. This parameter can be a value of SPI Clock Polarity uint32_t CLKPhase Specifies the clock active edge for the bit capture. This ...
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; SPI_InitStructure.SPI_CRCPolynomial = 7; SPI_Init(SPI1, &SPI_InitStructure); SPI_Cmd(SPI1, ENABLE); // SPI1 enable SPIINTInit(); } 2.2接收数据时序 INT需要设置为GPIO INPUT、下降沿触发模式。当从设备有数据需要上报时,会先拉低INT,此时MCU...
SPI_HandleTypeDef hspi1; void MX_SPI1_Init(void) { hspi1.Instance = SPI1; // 指定SPI实例为SPI1 hspi1.Init.Mode = SPI_MODE_MASTER; // 设置为主模式 hspi1.Init.Direction = SPI_DIRECTION_2LINES; // 设置为全双工模式 hspi1.Init.DataSize = SPI_DATASIZE_8BIT; // 设置数据位为8位...
hspi2.Init.DataSize = SPI_DATASIZE_32BIT;hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;hspi2....
SPI_InitStructure.SPI_FirstBit=7; //CRC值计算的多项式,提高数据的准确性 SPI_InitStructure.SPI_Mode=SPI_Mode_Master; //设置SPI工作模式:设置为主SPI SPI_InitStructure.SPI_NSS=SPI_NSS_Soft; SPI_Init(SPI2,&SPI_InitStructure); SPI_Cmd(SPI2,ENABLE); SPI2_ReadWriteByte(0xff);//启动传输 } void...
= SPI_DATASIZE_8BIT;SpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;SpiHandle.Init.TIMode = ...
DATA_SIZE dataSize) 870 { 871 DL_Common_update(&spi>CTL, (uint32_t) dataSize, SPI_CTL0_DSS_MASK); } 873 883 __STATIC_INLINE DL_SPI_DATA_SIZEDL_SPIgetDataSize(const SPI_Regs *spi) 884 { 885 uint32_t dataSize = spi->CTL0 SPI_CTL...
hspi1.Init.DataSize = SPI_DATASIZE_8BIT;hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;hspi1.Init...