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InternalFlash.cpp

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#include "drivers/InternalFlash.h"

#include <mdk/nrf.h>

using namespace Pinetime::Drivers;

void InternalFlash::ErasePage(uint32_t address) {

// Enable erase.

NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Een;

__ISB();

__DSB();

// Erase the page

NRF_NVMC->ERASEPAGE = address;

Wait();

// Disable erase

NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren;

__ISB();

__DSB();

}

void InternalFlash::WriteWord(uint32_t address, uint32_t value) {

// Enable write.

NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen;

__ISB();

__DSB();

// Write word

*(uint32_t*) address = value;

Wait();

// Disable write

NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren;

__ISB();

__DSB();

}

void InternalFlash::Wait() {

while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {

;

}

}