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UICR values are written by the SystemInit, if missing.

pull/159/head
tkuyucu 2014-02-04 10:20:40 +01:00
parent 1eba6888b4
commit b77d61416f
1 changed files with 25 additions and 7 deletions
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30
libraries/mbed/targets/cmsis/TARGET_NORDIC/TARGET_NRF51822/system_nrf51822.c
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@ -43,16 +43,35 @@ void SystemCoreClockUpdate(void)
void SystemInit(void) void SystemInit(void)
{ {
/* If desired, switch off the unused RAM to lower consumption by the use of RAMON register. /* Write the necessary UICR values if needed */
It can also be done in the application main() function. */ if (NRF_UICR->CLENR0 == 0xFFFFFFFF){
NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){
}
NRF_UICR->CLENR0 = 0x14000;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){
}
NRF_UICR->FWID = 0xFFFF0049;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){
}
NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){
}
NVIC_SystemReset();
while (true){
}
}
/* Prepare the peripherals for use as indicated by the PAN 26 "System: Manual setup is required /* Prepare the peripherals for use as indicated by the PAN 26 "System: Manual setup is required
to enable the use of peripherals" found at Product Anomaly document for your device found at to enable the use of peripherals" found at Product Anomaly document for your device found at
https://www.nordicsemi.com/. The side effect of executing these instructions in the devices https://www.nordicsemi.com/. The side effect of executing these instructions in the devices
that do not need it is that the new peripherals in the second generation devices (LPCOMP for that do not need it is that the new peripherals in the second generation devices (LPCOMP for
example) will not be available. */ example) will not be available. */
if (is_manual_peripheral_setup_needed()) if (is_manual_peripheral_setup_needed()){
{
*(uint32_t volatile *)0x40000504 = 0xC007FFDF; *(uint32_t volatile *)0x40000504 = 0xC007FFDF;
*(uint32_t volatile *)0x40006C18 = 0x00008000; *(uint32_t volatile *)0x40006C18 = 0x00008000;
} }
@ -60,8 +79,7 @@ void SystemInit(void)
/* Disable PROTENSET registers under debug, as indicated by PAN 59 "MPU: Reset value of DISABLEINDEBUG /* Disable PROTENSET registers under debug, as indicated by PAN 59 "MPU: Reset value of DISABLEINDEBUG
register is incorrect" found at Product Anomaly document four your device found at register is incorrect" found at Product Anomaly document four your device found at
https://www.nordicsemi.com/. There is no side effect of using these instruction if not needed. */ https://www.nordicsemi.com/. There is no side effect of using these instruction if not needed. */
if (is_disabled_in_debug_needed()) if (is_disabled_in_debug_needed()){
{
NRF_MPU->DISABLEINDEBUG = MPU_DISABLEINDEBUG_DISABLEINDEBUG_Disabled << MPU_DISABLEINDEBUG_DISABLEINDEBUG_Pos; NRF_MPU->DISABLEINDEBUG = MPU_DISABLEINDEBUG_DISABLEINDEBUG_Disabled << MPU_DISABLEINDEBUG_DISABLEINDEBUG_Pos;
} }