L1 scratchpad for stack and RSI issues: bug in example rsi.c for BF504 (and possibly others)

Hi,

Can you confirm that you are referring to the POST example for the BF506F EZ-KIT Lite? If this is the case, I can enter an enhancement request so it can be considered for the future.

Note that it may be beyond the scope of the examples to reiterate limitations - such as performing DMA from scratchpad - that are documented elsewhere.

Regards,

Craig.

for example

static uint32_t sd_mmc_get_sd_scr_register(void)

{

    uint32_t error = 0;

    uint8_t buffer[8];

    *pRSI_DATA_LGTH = 8;

    *pRSI_DATA_TIMER = 0xFFFFFFFF;

    error = sd_mmc_send_command(SD_MMC_CMD_SEND_STATUS, adi_rsi_card_registers.sd.rca<<16);

    if((*pRSI_RESPONSE0 & SD_CSR_CURRENT_STATE) == SD_CSR_CURRENT_STATE_STANDBY)

    {

        error = sd_mmc_send_command(   SD_MMC_CMD_SELECT_DESELECT_CARD,

                                       adi_rsi_card_registers.sd.rca<<16);

    }

// DMA call here

    SDBlockRead((void *)&buffer[0], 8);

We declared them global and make static like this

static uint8_t          dma_buffer[64];

then remove    

uint8_t buffer[8];

or uint8_t buffer[64];

from functions static uint32_t sd_mmc_get_sd_scr_register(void), static uint32_t sd_mmc_get_sd_ssr_register(void) and so on

Thanks for the feedback. As I said, I'll log this as an enhancement request.

Thanks again,

Craig.