STM32f10x - SPI not sending data

[mbabu527]

Posted on February 24, 2012 at 10:16

please correct my code.

what is missing in that.....clarify...

#include ''stm32f10x_lib.h''
void RCC_Configuration(void);
void GPIO_Configuration(void);
void SPI_Configuration(void);
ErrorStatus HSEStartUpStatus;
int main(void)
{
RCC_Configuration();
GPIO_Configuration();
SPI_Configuration();
SPI_Cmd(SPI1, ENABLE);
while(1)
{
SPI_I2S_SendData(SPI1, 0x01);
SPI_I2S_SendData(SPI1, 0x03);
}
}
void RCC_Configuration(void)
{
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON);
HSEStartUpStatus=RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK2Config(RCC_HCLK_Div2);
RCC_PCLK1Config(RCC_HCLK_Div2);
RCC_PLLConfig(0x00010000, RCC_PLLMul_9);
RCC_PLLCmd(ENABLE);
while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
while (RCC_GetSYSCLKSource() != 0x08) {}
}
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA | RCC_APB2Periph_SPI1, ENABLE);
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void SPI_Configuration(void)
{
SPI_InitTypeDef SPI_InitStructure;
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_LSB;
SPI_Init(SPI1, &SPI_InitStructure);
}

#stm32f10x #spi #stm32

[esiqueira]

Posted on February 24, 2012 at 11:45

Only one line is missing...

#include <stm32f10x_lib.h> #include ''spi.h'' SPI_InitTypeDef  SPI_InitStructure;

/*----------------------------------------------------------------------------

 *        SPI Configuration  *---------------------------------------------------------------------------*/ void SPI_Configuration(void) {   SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;   SPI_InitStructure.SPI_Mode = SPI_Mode_Master;   SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;   SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;   SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;   SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;   SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;   SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;   SPI_InitStructure.SPI_CRCPolynomial = 7;   SPI_Init(SPI1, &SPI_InitStructure);     SPI_Cmd(SPI1, ENABLE);   }

[mbabu527]

Posted on February 25, 2012 at 10:50

still its not sending any data..

i added what you said but its not showing any data on simulation window.

[Tesla DeLorean]

Posted on February 25, 2012 at 15:31

Simulation? Does it work on real hardware?

You should wait for the peripheral to be ready before sending data too     while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);