/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
GD_EVAL_LEDInit(LED1);
vab1 = (uint32_t)0xabcd1234;
RCC_AHBPeriphClock_Enable(RCC_AHBPERIPH_CRC, ENABLE);
CRC_DeInit();
read32_1 = CRC_CalcSingleData(vab1);
/* input reverse */
CRC_DeInit();
CRC_ReverseInputData_Config(CRC_REVERSE_INPUT_DATA_BYTE);
read32_2 = CRC_CalcSingleData(vab1);
CRC_DeInit();
CRC_ReverseInputData_Config(CRC_REVERSE_INPUT_DATA_HALFWORD);
read32_3 = CRC_CalcSingleData(vab1);
CRC_DeInit();
CRC_ReverseInputData_Config(CRC_REVERSE_INPUT_DATA_WORD);
read32_4 = CRC_CalcSingleData(vab1);
/* output reverse */
CRC_DeInit();
CRC_ReverseOutputData_Enable(ENABLE);
read32_5 = CRC_CalcSingleData(vab1);
CRC_DeInit();
CRC_ReverseInputData_Config(CRC_REVERSE_INPUT_DATA_BYTE);
CRC_ReverseOutputData_Enable(ENABLE);
read32_6 = CRC_CalcSingleData(vab1);
CRC_DeInit();
CRC_ReverseInputData_Config(CRC_REVERSE_INPUT_DATA_HALFWORD);
CRC_ReverseOutputData_Enable(ENABLE);
read32_7 = CRC_CalcSingleData(vab1);
CRC_DeInit();
CRC_ReverseInputData_Config(CRC_REVERSE_INPUT_DATA_WORD);
CRC_ReverseOutputData_Enable(ENABLE);
read32_8 = CRC_CalcSingleData(vab1);
/* check the caculation result */
if((read32_1 == 0xf7018a40)&&(read32_2 == 0x49fc6721)&&(read32_3 == 0x606444e3)&&(read32_4 == 0x16d70081)
&&(read32_5 == 0x025180ef)&&(read32_6 == 0x84e63f92)&&(read32_7 == 0xc7222606)&&(read32_8 == 0x8100eb68))
{
success_flag = 0x1;
GD_EVAL_LEDOn(LED1);
}
while (1)
{
}
}
/**
* @brief Configure CRC peripheral to use 8-bit polynomials
* @param poly: the CRC polynomial
* @retval None
*/
static void CRC_Config(uint8_t poly)
{
/* Enable CRC AHB clock interface */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_CRC, ENABLE);
/* DeInit CRC peripheral */
CRC_DeInit();
/* Init the INIT register */
CRC_SetInitRegister(0);
/* Select 8-bit polynomial size */
CRC_PolynomialSizeSelect(CRC_PolSize_8);
/* Set the polynomial coefficients */
CRC_SetPolynomial(poly);
}
