Hi,
When reading and writing to and from the SPI bus on a Toradex iMx6 module running WinCe the data is not aligned to DWORDs even though the doxygen generated documentation states so. When running the exact same code using Spi_ReadWrite on a T20 the data is aligned to DWORDs. For the iMX6 it’s aligned to bytes.
Can you tell us what we’re doing wrong or is this a bug?
Best regards,
KD
@KevinElaut63,
Could you please share sample code to test on our side and let you know the feedback.
Hi,
This is the code:
HANDLE hSPI;
DWORD dataCount = 0;
DWORD spiData[20] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20};
DWORD rxBuffer[20] = {0};
hSPI = Spi_Init(L"SPI1");
if (hSPI != NULL)
{
Spi_SetConfigInt(hSPI, L"BitsPerWord", 8, StoreVolatile);
Spi_SetConfigInt(hSPI, L"BitRateHz", 10*1000*1000, StoreVolatile);
Spi_SetConfigInt(hSPI, L"SpiMode", 0, StoreVolatile);
if(Spi_Open(hSPI))
{
dataCount = Spi_ReadWrite(hSPI, rxBuffer, spiData, 20);
}
}
return 0;
I attached 2 screenshots of the memory output to show that the data did not show up in the receive buffer.
I just used the code from the samples that were supplied with the library.
Kind Regards,
KD
