|
|
|
@ -25,16 +25,26 @@
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "nrfx.h"
|
|
|
|
|
#include "nrfx_nvmc.h"
|
|
|
|
|
#include "hal/nrf_nvmc.h"
|
|
|
|
|
|
|
|
|
|
void nrf_peripherals_power_init(void) {
|
|
|
|
|
// Set GPIO reference voltage to 3.3V if it isn't already. REGOUT0 will get reset to 0xfffffff
|
|
|
|
|
// if flash is erased, which sets the default to 1.8V
|
|
|
|
|
// This matters only when "high voltage mode" is enabled, which is true on the PCA10059,
|
|
|
|
|
// and might be true on other boards.
|
|
|
|
|
if (NRF_UICR->REGOUT0 == 0xffffffff) {
|
|
|
|
|
nrfx_nvmc_word_write((uint32_t) &NRF_UICR->REGOUT0, UICR_REGOUT0_VOUT_3V3 << UICR_REGOUT0_VOUT_Pos);
|
|
|
|
|
// Must reset to make enable change.
|
|
|
|
|
if (NRF_UICR->REGOUT0 == 0xffffffff && NRF_POWER->MAINREGSTATUS & 1) {
|
|
|
|
|
// Expand what nrf_nvmc_word_write() did.
|
|
|
|
|
// It's missing from nrfx V2.0.0, and nrfx_nvmc_word_write() does bounds
|
|
|
|
|
// checking which prevents writes to UICR.
|
|
|
|
|
// Reported: https://devzone.nordicsemi.com/f/nordic-q-a/57243/nrfx_nvmc-h-api-cannot-write-to-uicr
|
|
|
|
|
NRF_NVMC->CONFIG = NRF_NVMC_MODE_WRITE;
|
|
|
|
|
while (!(NRF_NVMC->READY & NVMC_READY_READY_Msk)) {}
|
|
|
|
|
NRF_UICR->REGOUT0 = UICR_REGOUT0_VOUT_3V3 << UICR_REGOUT0_VOUT_Pos;
|
|
|
|
|
__DMB();
|
|
|
|
|
while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {}
|
|
|
|
|
NRF_NVMC->CONFIG = NRF_NVMC_MODE_READONLY;
|
|
|
|
|
|
|
|
|
|
// Must reset to enable change.
|
|
|
|
|
NVIC_SystemReset();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|