NRF52 -> Will not wake after sleep

smilvert

Hi

Finally I have had time to solder my project, Temp_hum, and started to create the code for it. But I struggle with some bascis

Code for the sensor:


#define MY_NODE_ID 37

// Enable debug prints
#define MY_DEBUG

// #define MY_DEBUG_VERBOSE_NRF5_ESB
#define MY_BAUD_RATE 115200

// Enable and select radio type attached
//#define MY_RADIO_RF24
//#define MY_RADIO_RFM69
//#define MY_RS485
#define MY_RADIO_NRF5_ESB

#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1
#define CHILD_ID_VOLT 2

#define IS_NRF52
// #define IS_NRF51

#define SHORT_WAIT 100

// Sleep time between sensor updates (in milliseconds)
static const uint64_t UPDATE_INTERVAL = 6000;

static bool metric = true;

float batteryPcnt;
float oldBatteryPcnt;

#include <MySensors.h>
#include <SI7021.h>

static SI7021 sensor;

void disableNfc()
{ //only applied to nRF52

#ifdef IS_NRF52
  //Make pins 9 and 10 usable as GPIO pins.
  NRF_NFCT->TASKS_DISABLE = 1; //disable NFC
  NRF_NVMC->CONFIG = 1;        // Write enable the UICR
  NRF_UICR->NFCPINS = 0;       //Make pins 9 and 10 usable as GPIO pins.
  NRF_NVMC->CONFIG = 0;        // Put the UICR back into read-only mode.
#endif
}

void turnOffRadio()
{
  NRF_RADIO->TASKS_DISABLE = 1;
  while (!(NRF_RADIO->EVENTS_DISABLED))
  {
  } //until radio is confirmed disabled
}

void turnOffAdc()
{
#ifndef IS_NRF52
  if (NRF_SAADC->ENABLE)
  { //if enabled, then disable the SAADC
    NRF_SAADC->TASKS_STOP = 1;
    while (NRF_SAADC->EVENTS_STOPPED)
    {
    }                      //wait until stopping of SAADC is confirmed
    NRF_SAADC->ENABLE = 0; //disable the SAADC
    while (NRF_SAADC->ENABLE)
    {
    } //wait until the disable is confirmed
  }
#endif
}

void turnOffUarte0()
{
#ifndef IS_NRF52
  NRF_UARTE0->TASKS_STOPRX = 1;
  NRF_UARTE0->TASKS_STOPTX = 1;
  NRF_UARTE0->TASKS_SUSPEND = 1;
  NRF_UARTE0->ENABLE = 0; //disable UART0
  while (NRF_UARTE0->ENABLE != 0)
  {
  }; //wait until UART0 is confirmed disabled.
#endif

#ifdef IS_NRF51
  NRF_UART0->TASKS_STOPRX = 1;
  NRF_UART0->TASKS_STOPTX = 1;
  NRF_UART0->TASKS_SUSPEND = 1;
  NRF_UART0->ENABLE = 0; //disable UART0
  while (NRF_UART0->ENABLE != 0)
  {
  }; //wait until UART0 is confirmed disabled.
#endif
}

void turnOffHighFrequencyClock()
{
  NRF_CLOCK->TASKS_HFCLKSTOP = 1;
  while ((NRF_CLOCK->HFCLKSTAT) & 0x0100)
  {
  } //wait as long as HF clock is still running.
}

void mySleepPrepare()
{ //turn-off energy drains prior to sleep
  turnOffHighFrequencyClock();
  turnOffRadio();
  //turnOffUarte0();
}

void presentation()
{
  Serial.println("Presentation");
  // Send the sketch info to the gateway
  sendSketchInfo("TemperatureAndHumidity", "1.2");

  // Present sensors as children to gateway
  present(CHILD_ID_HUM, S_HUM, "Humidity");
  delay(SHORT_WAIT);
  present(CHILD_ID_TEMP, S_TEMP, "Temperature");
  delay(SHORT_WAIT);
  present(CHILD_ID_VOLT, S_MULTIMETER, "Battery");

  metric = getControllerConfig().isMetric;
  Serial.println("End presention");
}

void setup()
{
  Serial.println("Setup");
  hwInit();
  
  disableNfc(); //remove unnecessary energy drains
  turnOffAdc(); //remove unnecessary energy drains
  while (not sensor.begin())
  {
    Serial.println(F("Sensor not detected!"));
    wait(5000);
  }
  Serial.println("End Setup");
}

void mySleep(uint32_t ms)
{
  mySleepPrepare();  //Take steps to reduce drains on battery current prior to sleeping
  sleep(ms);
}

void loop()
{
  // Read temperature & humidity from sensor.
  const float temperature = float(metric ? sensor.getCelsiusHundredths() : sensor.getFahrenheitHundredths()) / 100.0;
  const float humidity = float(sensor.getHumidityBasisPoints()) / 100.0;

#ifdef MY_DEBUG
  Serial.print(F("Temp "));
  Serial.print(temperature);
  Serial.print(metric ? 'C' : 'F');
  Serial.print(F("\tHum "));
  Serial.println(humidity);
#endif

  static MyMessage msgHum(CHILD_ID_HUM, V_HUM);
  static MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
  static MyMessage msgBattery(CHILD_ID_VOLT, V_VOLTAGE);

  send(msgTemp.set(temperature, 2));

  wait(SHORT_WAIT);
  send(msgHum.set(humidity, 2));

  float batteryVolt = getInternalVoltage();
  batteryPcnt =(batteryVolt / 3.3) * 100;
  if (batteryPcnt > 100)
  {
    batteryPcnt = 100;
  }
#ifdef MY_DEBUG
  Serial.print(F("Vbat "));
  Serial.print(batteryVolt);
  Serial.print(F(" Battery percent "));
  Serial.println(batteryPcnt);
#endif

  // Battery readout should only go down. So report only when new value is smaller than previous one.
  if (batteryPcnt < oldBatteryPcnt)
  {

    wait(SHORT_WAIT);
    send(msgBattery.set(batteryVolt, 3));
    wait(SHORT_WAIT);
    if (batteryPcnt < oldBatteryPcnt)
    {
      sendBatteryLevel(batteryPcnt);
      oldBatteryPcnt = batteryPcnt;
    }

    // Sleep until next update to save energy
    // 
    
  }
  //delay(5000);
  mySleep(UPDATE_INTERVAL);
}

float getInternalVoltage()
{
  return ((float)hwCPUVoltage()) / 1000.0;
}

Have some problems.

First and biggest: The sensor will not wake,

2577 TSF:MSG:SEND,37-37-0-0,s=0,c=1,t=1,pt=7,l=5,sg=0,ft=0,st=OK:33.34
Vbat 3.29 Battery percent 99.67
2587 MCO:SLP:MS=6000,SMS=0,I1=255,M1=255,I2=255,M2=255
2591 TSF:TDI:TPD
8593 MCO:SLP:WUP=-1
8595 TSF:TRI:TPU
Temp 23.46C	Hum 33.85
8626 TSF:MSG:SEND,37-37-0-0,s=1,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=OK:23.46
8733 TSF:MSG:SEND,37-37-0-0,s=0,c=1,t=1,pt=7,l=5,sg=0,ft=0,st=OK:33.85
Vbat 3.29 Battery percent 99.67
8743 MCO:SLP:MS=6000,SMS=0,I1=255,M1=255,I2=255,M2=255
8748 TSF:TDI:TPD

(Some times I got stuck at:

5803 MCO:SLP:MS=6000,SMS=0,I1=255,M1=255,I2=255,M2=255
5807 TSF:TDI:TPD
11809 MCO:SLP:WUP=-1
11811 TSF:TRI:TPU
Temp 22.69C	Hum 31.08
11842 TSF:MSG:SEND,37-37-0-0,s=1,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=OK:22.69

)

Second when im trying to debug with

#define MY_DEBUG_VERBOSE_NRF5_ESB

the node will not pass presentation.

153 NRF5:SND:END=1,ACK=1,RTRY=1,RSSI=-55,WAKE=5
4158 TSF:MSG:SEND,37-37-0-0,s=255,c=0,t=17,pt=0,l=5,sg=0,ft=0,st=OK:2.3.2
4164 NRF5:SND:TO=0,LEN=8,PID=1,NOACK=0
4169 NRF5:SND:END=1,ACK=1,RTRY=1,RSSI=-55,WAKE=4
4174 TSF:MSG:SEND,37-37-0-0,s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=OK:0
4180 NRF5:RX:LEN=9,NOACK=0,PID=2,RSSI=-74,RX=0
4184 TSF:MSG:READ,0-0-37,s=255,c=3,t=15,pt=6,l=2,sg=0:0100
4190 NRF5:RX:LEN=8,NOACK=0,PID=1,RSSI=-53,RX=0
4194 TSF:MSG:READ,0-0-37,s=255,c=3,t=6,pt=0,l=1,sg=0:M
Presentation
4200 NRF5:SND:TO=0,LEN=29,PID=2,NOACK=0
4206 NRF5:SND:END=1,ACK=1,RTRY=1,RSSI=-55,WAKE=5
4210 TSF:MSG:SEND,37-37-0-0,s=255,c=3,t=11,pt=0,l=22,sg=0,ft=0,st=OK:TemperatureAndHumidity
4218 NRF5:SND:TO=0,LEN=10,PID=3,NOACK=0
4223 NRF5:SND:END=1,ACK=1,RTRY=1,RSSI=-55,WAKE=4
4228 TSF:MSG:SEND,37-37-0-0,s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=OK:1.2
4234 NRF5:SND:TO=0,LEN=15,PID=0,NOACK=0
4239 NRF5:SND:END=1,ACK=1,RTRY=1,RSSI=-55,WAKE=4
4244 TSF:MSG:SEND,37-37-0-0,s=0,c=0,t=7,pt=0,l=8,sg=0,ft=0,st=OK:Humidity

Someone that can help me?

berkseo

Recently, I have faced exactly the same situation. Since this is no longer an isolated case, it means that the case is in the mysensors library.

smilvert

I have a feeling that the

Wait()

Is the problem but haven't had time to investigate.

nagelc

I'm stumped so far.
I have a very similar board, bt832 + SI7021, with a very similar sketch, which seems to work OK.
I don't see anything out of place in your sketch.

smilvert

@nagelc can you use
MY_DEBUG_VERBOSE_NRF5_ESB

Do I need to add a bigger capacitor between gnd and +3?

nagelc

I tried with MY_DEBUG_VERBOSE_NRF5_ESB, and it woke from sleep. I have it seeping for one minute.

I posted my code to my github in case you want to take a look:
https://github.com/spike314/BT8_SI_Sketch

I have the nrf5 routines and some battery routines in separate files for convenience, but I think we are using the same code otherwise.

smilvert

@nagelc Thanks will try

berkseo

I don't remember exactly, but I think in my case it was due to using wait b sleep in before() and presentation(). This may be due to the power of the radio module.

smilvert

I have been trying @nagelc code with a lot of debug prints and I think that my device is stuck after

MyHwNRF5.cpp

inline void hwSleep(void)
{	CORE_DEBUG(PSTR("In hwSleep, 345\n"));
	__WFE();
	__SEV();
	__WFE();
	CORE_DEBUG(PSTR("In hwSleep, 351\n"));
}

int8_t hwSleep(uint32_t ms)
{
	hwSleepPrepare(ms);
	while (nrf5_rtc_event_triggered == false) {
		hwSleep();
	}
	CORE_DEBUG(PSTR("In hwSleep, 357\n"));
	hwSleepEnd(ms);
	return MY_WAKE_UP_BY_TIMER;
}

And I will not go to hwSleepEnd

11274 MCO:SLP:MS=5000,SMS=0,I1=255,M1=255,I2=255,M2=255
11280 TSF:TDI:TPD
11281 After transport Disable
11284 Before hwSleep
11286 In hwSleepPrepare, 287
11289 In hwSleepPrepare,300
11291 In hwSleep, 345

NRF52 -> Will not wake after sleep

18

12.0k

11.2k

113.4k