SPI IO_IOCTL_SPI_CLEAR_STATS not working on K60 in MQX4.1

[ARQuattr]

I was using the SPI example code with a Flash chip running on both an MCF52254 and K21 device, and they work fine.  For some reason when testing this on a K60 device, there is an error when calling the IO_IOCTL_SPI_CLEAR_STATS command.  This is the part of the code in the SPI example that gives the error.

  /* Clear statistics */
   printf ("Clearing statistics ... ");
   if (SPI_OK == ioctl (spifd, IO_IOCTL_SPI_CLEAR_STATS, NULL))
   {
      printf ("OK\n");
   } else {
      printf ("ERROR\n");
   }

I checked the result of that call and I get a value of 44 (dec).  I'm not sure what this error means.  I was expecting something like (DRIVER_ERROR_BASE | 0x0700 | 0x0n), or 0x0001070n.

Is there some reason I can't clear stats on this device?

[RadekS · Accepted solution]

It returns IO error code MQX_IO_OPERATION_NOT_AVAILABLE. This is defined in mqx.h file as (MQX_ERROR_BASE|0x2C) and this is equal to 44dec.

If you look at _io_spi_ioctl() function in spi.c file, you can see that this error is generated in case when BSPCFG_ENABLE_SPI_STATS = 0.

Please define BSPCFG_ENABLE_SPI_STATS as 1 if you will use SPI statistics for some reason.

Have a great day,
RadekS

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