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lower brownout threshold to 1.7V

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This commit is contained in:
Kevin Hester 2021-04-11 13:52:39 +08:00
parent 328b24537f
commit f9a58b9dd1
1 changed files with 128 additions and 129 deletions

67
src/nrf52/main-nrf52.cpp
View File

@ -13,25 +13,23 @@
#include "BQ25713.h"
#endif
static inline void debugger_break(void) {
__asm volatile(
"bkpt #0x01\n\t"
static inline void debugger_break(void)
{
__asm volatile("bkpt #0x01\n\t"
"mov pc, lr\n\t");
}
// handle standard gcc assert failures
void __attribute__((noreturn))
__assert_func(const char *file, int line, const char *func,
const char *failedexpr) {
DEBUG_MSG("assert failed %s: %d, %s, test=%s\n", file, line, func,
failedexpr);
void __attribute__((noreturn)) __assert_func(const char *file, int line, const char *func, const char *failedexpr)
{
DEBUG_MSG("assert failed %s: %d, %s, test=%s\n", file, line, func, failedexpr);
// debugger_break(); FIXME doesn't work, possibly not for segger
while (1)
; // FIXME, reboot!
}
void getMacAddr(uint8_t *dmac) {
void getMacAddr(uint8_t *dmac)
{
ble_gap_addr_t addr;
if (sd_ble_gap_addr_get(&addr) == NRF_SUCCESS) {
memcpy(dmac, addr.addr, 6);
@ -42,17 +40,17 @@ void getMacAddr(uint8_t *dmac) {
dmac[3] = src[2];
dmac[2] = src[3];
dmac[1] = src[4];
dmac[0] = src[5] |
0xc0; // MSB high two bits get set elsewhere in the bluetooth stack
dmac[0] = src[5] | 0xc0; // MSB high two bits get set elsewhere in the bluetooth stack
}
}
NRF52Bluetooth *nrf52Bluetooth;
static bool bleOn = false;
static const bool useSoftDevice = true; // Set to false for easier debugging
static const bool useSoftDevice = false; // Set to false for easier debugging
void setBluetoothEnable(bool on) {
void setBluetoothEnable(bool on)
{
if (on != bleOn) {
if (on) {
if (!nrf52Bluetooth) {
@ -64,7 +62,8 @@ void setBluetoothEnable(bool on) {
}
}
} else {
if (nrf52Bluetooth) nrf52Bluetooth->shutdown();
if (nrf52Bluetooth)
nrf52Bluetooth->shutdown();
}
bleOn = on;
}
@ -73,7 +72,8 @@ void setBluetoothEnable(bool on) {
/**
* Override printf to use the SEGGER output library
*/
int printf(const char *fmt, ...) {
int printf(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
auto res = SEGGER_RTT_vprintf(0, fmt, &args);
@ -81,8 +81,9 @@ int printf(const char *fmt, ...) {
return res;
}
void initBrownout() {
auto vccthresh = POWER_POFCON_THRESHOLD_V28;
void initBrownout()
{
auto vccthresh = POWER_POFCON_THRESHOLD_V17;
if (useSoftDevice) {
auto err_code = sd_power_pof_enable(POWER_POFCON_POF_Enabled);
@ -90,19 +91,12 @@ void initBrownout() {
err_code = sd_power_pof_threshold_set(vccthresh);
assert(err_code == NRF_SUCCESS);
} else {
uint32_t pof_flags = POWER_POFCON_POF_Enabled | (vccthresh << POWER_POFCON_THRESHOLD_Pos);
#ifdef POWER_POFCON_THRESHOLDVDDH_Msk
auto vcchthresh = POWER_POFCON_THRESHOLDVDDH_V27;
pof_flags |= (vcchthresh << POWER_POFCON_THRESHOLDVDDH_Pos);
#endif
NRF_POWER->POFCON = pof_flags;
}
// We don't bother with setting up brownout if soft device is disabled - because during production we always use softdevice
}
void checkSDEvents() {
void checkSDEvents()
{
if (useSoftDevice) {
uint32_t evt;
while (NRF_SUCCESS == sd_evt_get(&evt)) {
@ -122,9 +116,13 @@ void checkSDEvents() {
}
}
void nrf52Loop() { checkSDEvents(); }
void nrf52Loop()
{
checkSDEvents();
}
void nrf52Setup() {
void nrf52Setup()
{
auto why = NRF_POWER->RESETREAS;
// per
// https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52832.ps.v1.1%2Fpower.html
@ -137,7 +135,8 @@ void nrf52Setup() {
#ifdef BQ25703A_ADDR
auto *bq = new BQ25713();
if (!bq->setup()) DEBUG_MSG("ERROR! Charge controller init failed\n");
if (!bq->setup())
DEBUG_MSG("ERROR! Charge controller init failed\n");
#endif
// Init random seed
@ -152,7 +151,8 @@ void nrf52Setup() {
initBrownout();
}
void cpuDeepSleep(uint64_t msecToWake) {
void cpuDeepSleep(uint64_t msecToWake)
{
// FIXME, configure RTC or button press to wake us
// FIXME, power down SPI, I2C, RAMs
#ifndef NO_WIRE
@ -172,8 +172,7 @@ void cpuDeepSleep(uint64_t msecToWake) {
auto ok = sd_power_system_off();
if (ok != NRF_SUCCESS) {
DEBUG_MSG(
"FIXME: Ignoring soft device (EasyDMA pending?) and forcing "
DEBUG_MSG("FIXME: Ignoring soft device (EasyDMA pending?) and forcing "
"system-off!\n");
NRF_POWER->SYSTEMOFF = 1;
}