adsp707 spi通信dma模式，按照cces里的demo写的程序。但是示波器测量没有clock。除了下面红色部分，还要做哪些配置吗？
/* driver API result code */
ADI_SPI_RESULT result;
/* transceiver buffers */
uint8_t Prologue[3] = {0xFC, 0xFF};
uint8_t TxBuffer[8] = {0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x03};
uint8_t RxBuffer[8];
/* transceiver configurations */
ADI_SPI_TRANSCEIVER Transceiver1 = {&Prologue[0], 4, &TxBuffer[0], 8, &RxBuffer[0], 8};
ADI_SPI_TRANSCEIVER Transceiver2 = {Prologue, 2, NULL, 0,RxBuffer , 2 };
/* Initialize managed drivers and/or services */
adi_initComponents();
//ConfigSoftSwitches();
/* open the SPI driver */
result = adi_spi_Open(SPI_DEVICE_NUM, SPIDriverMemory, (uint32_t)ADI_SPI_DMA_MEMORY_SIZE, &hDevice);
printf("------adi_spi_Open %d----\n",result);
/*
* Use the driver API's to configure SPI
*/
ConfigureDevice();
/* Register a callback for the DMA */
result = adi_spi_RegisterCallback(hDevice, NULL, NULL);
printf("------adi_spi_RegisterCallback %d----\n",result);
/* Enable DMA */
result = adi_spi_EnableDmaMode(hDevice, true);
printf("------adi_spi_EnableDmaMode %d----\n",result);
/* submit the SPI transceiver's buffers */
result = adi_spi_SubmitBuffer(hDevice, &Transceiver1);
printf("------adi_spi_SubmitBuffer %d----\n",result);
result = adi_spi_SubmitBuffer(hDevice, &Transceiver2);
printf("------adi_spi_SubmitBuffer %d----\n",result);
while(!bComplete)
{
}
/* close the SPI driver */
result = adi_spi_Close(hDevice);
return 0;
/* Configure the SPI device for test */
uint32_t ConfigureDevice(void)
{
uint32_t Result = 0u;
if (Result == 0u)
{
/* device in master of the SPI interface */
Result = (uint32_t)adi_spi_SetMaster(hDevice, true);
}
if (Result == 0u)
{
/* SPI slave select in controlled by software not hardware */
Result = (uint32_t)adi_spi_SetHwSlaveSelect(hDevice, false);
}
if (Result == 0u)
{
/* data transitions on falling edge of clock */
Result = (uint32_t)adi_spi_SetClockPhase(hDevice, false);
}
if (Result == 0u)
{
/* SPI clock is SCLK divided by 1000 + 1 */
Result = (uint32_t)adi_spi_SetClock(hDevice, 1000u);
}
if (Result == 0u)
{
/* SPI slave select is on SPI slave select 1 pin */
Result = (uint32_t)adi_spi_SetSlaveSelect(hDevice, ADI_SPI_SSEL_ENABLE2);
}
if (Result == 0u)
{
/* SPI data transfers are 8 bit */
Result = (uint32_t)adi_spi_SetWordSize(hDevice, ADI_SPI_TRANSFER_8BIT);
}
return Result;
}
您的位置：
2017/8/23 10:25:11
