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CODE
/*****************************************************************************
SPI_Configuration ();
******************************************************************************/
void SPI2_Configuration(void)
{
SPI_InitTypeDef SPI_InitStructure;
Config_SPI2_Pin ();
RCC_APB1PeriphResetCmd (RCC_APB1Periph_SPI2, DISABLE);
RCC_APB1PeriphClockCmd (RCC_APB1Periph_SPI2, ENABLE);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; //Config SPI Protocol
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_NSS = SPI_NSS_Hard; //
SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low; //
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge; //
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; //
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2; //
SPI_Init(SPI2, &SPI_InitStructure);
SPI_Cmd(SPI2, ENABLE);
SPI_CalculateCRC(SPI2, DISABLE);
SPI_SSOutputCmd(SPI2, ENABLE);
Cnt_Tx = Cnt_Rx =0;
SPI_Protocol_Out.DD = AED_Answer_Prepare (Cmd_Power_ON);
SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_RXNE, ENABLE);
SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_TXE, ENABLE);
} // SPI2_Configuration()
/*****************************************************************************
SPI1_IRQHandler ();
******************************************************************************/
__irq void SPI2_IRQHandler(void)
{
if (SPI2->SR & SPI_I2S_FLAG_TXE)
{
SPI2->DR = SPI_Protocol_Out.D08 [Cnt_Tx];
if (++Cnt_Tx == Cnt_Pack) Cnt_Tx = 0; // Clear Cnt
}
if (SPI2->SR & SPI_I2S_FLAG_RXNE)
{
SPI_Protocol_In.D08 [Cnt_Rx] = SPI2->DR;
if (++Cnt_Rx == Cnt_Pack)
{
if (CRC_16((u8 *)SPI_Protocol_In.D08, Cnt_Pack-2) == SPI_Protocol_In.DD.CRC16) pCtrl-> Link_SPI = True;
Cnt_Rx =0;
}
}
} // __irq SPI2_IRQHandler()
SPI_Configuration ();
******************************************************************************/
void SPI2_Configuration(void)
{
SPI_InitTypeDef SPI_InitStructure;
Config_SPI2_Pin ();
RCC_APB1PeriphResetCmd (RCC_APB1Periph_SPI2, DISABLE);
RCC_APB1PeriphClockCmd (RCC_APB1Periph_SPI2, ENABLE);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; //Config SPI Protocol
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_NSS = SPI_NSS_Hard; //
SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low; //
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge; //
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; //
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2; //
SPI_Init(SPI2, &SPI_InitStructure);
SPI_Cmd(SPI2, ENABLE);
SPI_CalculateCRC(SPI2, DISABLE);
SPI_SSOutputCmd(SPI2, ENABLE);
Cnt_Tx = Cnt_Rx =0;
SPI_Protocol_Out.DD = AED_Answer_Prepare (Cmd_Power_ON);
SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_RXNE, ENABLE);
SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_TXE, ENABLE);
} // SPI2_Configuration()
/*****************************************************************************
SPI1_IRQHandler ();
******************************************************************************/
__irq void SPI2_IRQHandler(void)
{
if (SPI2->SR & SPI_I2S_FLAG_TXE)
{
SPI2->DR = SPI_Protocol_Out.D08 [Cnt_Tx];
if (++Cnt_Tx == Cnt_Pack) Cnt_Tx = 0; // Clear Cnt
}
if (SPI2->SR & SPI_I2S_FLAG_RXNE)
{
SPI_Protocol_In.D08 [Cnt_Rx] = SPI2->DR;
if (++Cnt_Rx == Cnt_Pack)
{
if (CRC_16((u8 *)SPI_Protocol_In.D08, Cnt_Pack-2) == SPI_Protocol_In.DD.CRC16) pCtrl-> Link_SPI = True;
Cnt_Rx =0;
}
}
} // __irq SPI2_IRQHandler()