Hi!
There are many questions about flash memory already.
But I could not find the question I wanted.
I want to save scan data to flash memory.
However, when you try to save the scan data, a system reset occurs.
Below is my code.
uint32_t * addr;
uint8_t patwr;
uint8_t patrd;
uint8_t patold=0xFF;
uint32_t i=0;
uint32_t pg_size;
uint32_t pg_num;
static void flash_word_write(uint32_t * address, uint32_t value) {
// Turn on flash write enable and wait until the NVMC is ready:
NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
// Do nothing.
}
*address = value;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
// Do nothing.
}
// Turn off flash write enable and wait until the NVMC is ready:
NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
// Do nothing.
}
}
static void on_ble_evt(ble_evt_t * p_ble_evt) {
const ble_gap_evt_t * p_gap_evt = &p_ble_evt->evt.gap_evt;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_ADV_REPORT:
{
const ble_gap_evt_adv_report_t * p_adv_report = &p_gap_evt->params.adv_report;
const ble_gap_evt_scan_req_report_t * p_scan_report = &p_gap_evt->params.scan_req_report;
for(int8_t i=0;i<BLE_GAP_ADV_MAX_SIZE;i++)
{
app_uart_put(p_adv_report->data[i]);
}
sd_ble_gap_scan_stop();
patwr = p_adv_report->data[0];
flash_word_write(addr,(uint32_t)patwr);
}
break; // BLE_GAP_EVT_ADV_REPORT
default:
break;
}
}
int main(void) {
pg_size = NRF_FICR->CODEPAGESIZE;
pg_num = NRF_FICR->CODESIZE - 1; // Use last page in flash
// Start address:
addr = (uint32_t *)(pg_size * pg_num);
ble_scan_stack_init();
sd_ble_gap_scan_start(&m_scan_params);
}
What's the problem? Please help me.
Thank you for your help all the time.
