Posted on February 02, 2015 at 14:15Hullo guys , I'm using STM32F429I , when i configure the SPI3 according this intialization
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2 , ENABLE);
SPI_I2S_DeInit(SPI2);
SPI2_Struct.SPI_BaudRatePrescaler=Baud_Rate_Prescaler;
SPI2_Struct.SPI_CPHA=SPI_CPHA_1Edge ;
SPI2_Struct.SPI_CPOL=SPI_CPOL_Low ;
SPI2_Struct.SPI_CRCPolynomial=3;
SPI2_Struct.SPI_Direction=SPI_Direction_2Lines_FullDuplex;
SPI2_Struct.SPI_FirstBit=SPI_FirstBit_MSB ;
SPI2_Struct.SPI_Mode=MASTER_SLAVE;
SPI2_Struct.SPI_NSS=SPI_NSS_Soft;
SPI2_Struct.SPI_DataSize=SPI_DataSize_8b;
SPI_Init(SPI2,&SPI2_Struct);
it is configured correctly , but when I enable the SPI by SPI_Cmd(SPI2,ENABLE);
the SPE bit is not set and the MSTR bit is cleared (!!!!!!!!!!)
When I call SPI_Cmd(SPI2,ENABLE); , before the initialization , the SPE bit is enabled
Any help ?
