C implementation for writing to NVMC

[micallef25]

Hello,

I am looking through the data sheet for the NRF52 and do not see anything for writing to NVMC.

I see you can erase and configure the NVMC using:

NRF_NVMC -> CONFIG = 0x2; NRF_NVMC -> ERASEPAGE = 0x0150;

I was expecting see some thing like

NRF_NVMC -> WRITEPAGE = 0x0150; NRF_NVMC -> DATA = 0x3350;

How would I go about writing data to a specific address in flash?

Thanks,

Eric

[Daniel Wang]

The nrf_nvmc_write_word() function looks like this:

void nrf_nvmc_write_word(uint32_t address, uint32_t value)
{
    // Enable write.
    NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen;
    while (NRF_NVMC->READY == NVMC_READY_READY_Busy){
    }

    *(uint32_t*)address = value;
    while (NRF_NVMC->READY == NVMC_READY_READY_Busy){
    }

    NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren;
    while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
    {
    }
}

So now you can implement this in your own function ; )

[micallef25]

hello daniel the (uint32_t)address = value; is what I was pretty much looking for. Than kyo for your help