SPI_FLAG_OVR) == RESET) &&//(SPI_CHECK_FLAG(itflag, SPI_FLAG_RXNE) != RESET) && (SPI_CHECK_IT_SOURCE(itsource, SPI_IT_RXNE) != RESET))//{//hspi->RxISR(hspi);//return;//}/*SPI
&SPI_InitStructure);SPI_Cmd(SPI1,ENABLE);}voidSPIX_SetSpeed(SPI_TypeDef*SPIx,SPI_InitTypeDef*SPI_InitStruct,unsignedcharSpeedSet){SPI_InitStruct->SPI_BaudRatePrescaler=SpeedSet;SPI_Init(SPIx,SPI_InitStruct);SPI_Cmd(SPIx,ENABLE);}voidSPIX_Write...
*/ int spi_setup(struct spi_device *spi) { unsigned bad_bits, ugly_bits; int status; /* check mode to prevent that DUAL and QUAD set at the same time */ if (((spi->mode & SPI_TX_DUAL) && (spi->mode & SPI_TX_QUAD)) || ((spi->mode & SPI_RX_DUAL) && (spi->mode &...
The correct SPI status flag bit will be as shown below marked in red ink. As per this you have Config Valid and SPI Error set here. Read the 0x4A register to check the SPI error root cause. Thank you Best Regards Raj Chaudhari
*/37if(!of_node_check_flag(rd->dn, OF_POPULATED))38returnNOTIFY_OK;3940/*find our device by node*/41spi = of_find_spi_device_by_node(rd->dn);42if(spi ==NULL)43returnNOTIFY_OK;/*no? not meant for us*/4445/*unregister takes one ref away*/46spi_unregister_device(spi);4748/*...
/* Check if the SPI is already enabled */ if ((hspi->Instance->CR1 & SPI_CR1_SPE) != ...
LD3320_Check(void) { uint8_t flag = 1; LD_Reset();//语音复位 LD_ReadReg(0x6); LD_WriteReg(0x35, 0x33); LD_WriteReg(0x1b, 0x55); LD_WriteReg(0xb3, 0xaa); if(LD_ReadReg(0x35) == 0x33 && LD_ReadReg(0x1b) == 0x55 && LD_ReadReg(0xb3) == 0xaa) { flag = 0...
(void) return txflag;/=unsigned char check_receive_flag(void) return rxflag;/=void setreceiveflag(unsigned char rflag) rxflag = rflag;/=void setsendflag(unsigned char tflag) txflag = tflag;/=void start_send(unsigned char txdata) sio01 = 0x00; gpcsi01txaddress = spi_rx_buffer + 1...
SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) 1. 设置SPI2速度函数 单独的设置分频系数的函数 //SPI 速度设置函数 //SpeedSet://SPI_BaudRatePrescaler_256 256 分频 (SPI 281.25K@sys 72M) void SPI2_SetSpeed(u8 SPI_BaudRatePrescaler)
WRFIFO(将1至100写入wrfifo中)、SE(扇区擦除)、PP(写入flash)、RD(读出flash)、WAIT_RD(等待读取)、CHECK( 检测读出的数据的正确性)。 设计代码为: module test_ctrl ( input wire clk, input wire rst_n, output reg wrfifo_wr, output reg [7:0] wrfifo_data, output reg flag_se, output reg ...