66AK2H14: SPI Example Code

Hi,

There is SPI flash connected to TI K2H EVM. You can download the Processor SDK RTOS for 66AK2H14 device http://software-dl.ti.com/processor-sdk-rtos/esd/K2HK/latest/index_FDS.html and following the 

There are SPI examples under pdk_k2hk_4_0_xx\packages\ti\drv\spi. Also user guide: http://software-dl.ti.com/processor-sdk-rtos/esd/docs/latest/rtos/index_device_drv.html#mcspi-qspi-ospi

For the delay routine, a simple one is the cycleDelay() in pdk_k2hk_4_0_xx\packages\ti\drv\pcie\example\sample\src\pcie_sample.c

/*****************************************************************************
* Function: Utility function a cycle clock
****************************************************************************/
static uint32_t readTime32(void)
{
uint32_t timeVal;

#if defined (_TMS320C6X)
timeVal = TSCL;
#elif __ARM_ARCH_7A__
__asm__ __volatile__ ("MRC p15, 0, %0, c9, c13, 0\t\n": "=r"(timeVal));
#else
/* M4 specific implementation*/
static uint32_t simuTimer = 0;
simuTimer++;
timeVal = simuTimer;
#endif
return timeVal;
}

/*****************************************************************************
* Function: Utility function to introduce delay
****************************************************************************/
void cycleDelay (uint32_t count)
{
uint32_t start = (uint32_t)readTime32();

while (((uint32_t)readTime32() - start) < count);
}

Regards, Eric

Hi,

You can do a typedef, uint32_t is unsigned int.

Regards, Eric 

Hi,

Your case is a bare metal one, I am not sure if you missed some setup, like the I-cache, D-cache and MMU. The code I provided was tested in a SYSBIOS environment. Are you able to use that environment?

Regards, Eric