Posted on October 04, 2017 at 07:38 Hello All
currently i am working in Fatfs with stm32f070 with spi1.
when i move to spi2 its not working.
i am trying multiple times but i cant get success.
here is my init function
void SPIFlashInit(void)
{
SPI_InitTypeDef SPI_Struct;
GPIO_InitTypeDef GPIO_Struct;
uint32_t stat;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB ,ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA ,ENABLE);
GPIO_Struct.GPIO_Pin = GPIO_Pin_15;
GPIO_Struct.GPIO_Mode = GPIO_Mode_OUT;
GPIO_Struct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_Struct);
GPIO_WriteBit(GPIOA,GPIO_Pin_15,Bit_SET);
// Configure SPI1 pins: SCK, MISO and MOSI
GPIO_Struct.GPIO_Pin =
GPIO_Pin_13
|
GPIO_Pin_14
|
GPIO_Pin_15
;
GPIO_Struct.GPIO_Mode = GPIO_Mode_AF;
GPIO_Init(GPIOB, &GPIO_Struct);
//Configure I/O for Flash Chip select //
GPIO_PinAFConfig(GPIOB,GPIO_PinSource13,GPIO_AF_0);
GPIO_PinAFConfig(
GPIOB
,GPIO_PinSource14,GPIO_AF_0);
GPIO_PinAFConfig(
GPIOB
,GPIO_PinSource15,GPIO_AF_0);
//SPI1 configuration
SPI_Struct.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_Struct.SPI_Mode = SPI_Mode_Master;
SPI_Struct.SPI_DataSize = SPI_DataSize_8b;
SPI_Struct.SPI_CPOL = SPI_CPOL_Low;
SPI_Struct.SPI_CPHA = SPI_CPHA_1Edge;
SPI_Struct.SPI_NSS = SPI_NSS_Soft;
SPI_Struct.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
SPI_Struct.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_Struct.SPI_CRCPolynomial = 7;
SPI_Init(SPI2, &SPI_Struct);
SPI_RxFIFOThresholdConfig (SPI2,SPI_RxFIFOThreshold_QF);
SPI_Cmd(SPI2, ENABLE);
}
please ans me where i am wrong in this code.
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