C implementation for writing to NVMC

Question

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 · Accepted Answer

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 ; )

C implementation for writing to NVMC

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