Hi,
When we run this code
#define MCSPI0_BASE 0x48030000
#define MCSPI0_CH0CONF (*((volatile uint32_t *)(MCSPI0_BASE + 0x12C)))
PRU_FW_DEBUG_OUTPUT = 500;
MCSPI0_CH0CONF = (MCSPI0_CH0CONF & ~0x0F80) | (((wl-1) & 0x1F) << 7);
PRU_FW_DEBUG_OUTPUT = 501;
we only see 500 in our DEBUG_OUTPUT. It seems like the PRU is hanging trying to access the SPI device. As far as we know, we have enabled host memory access:
/* Allow Open Communication Protocol master port acces by the PRU
* so that the PRU can read from external memory
*/
CT_CFG.SYSCFG_bit.STANDBY_INIT = 0;
Do we need to do some kind of power management either from the PRU or the ARM side to enable the SPI device?
Robert
