I have been working on a project in which the analog values are sampled at a particular frequency and stored in an array. Then the value will be sent to user application ESP32 using BLE. But I got stuck in this error.
/home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/queue.c:1443 (xQueueGenericReceive)- assert failed! abort() was called at PC 0x4008e1d5 on core 1
Backtrace: 0x40091b38:0x3ffe0b20 0x40091d69:0x3ffe0b40 0x4008e1d5:0x3ffe0b60 0x400d1a2d:0x3ffe0ba0 0x4008e525:0x3ffe0be0
Rebooting... ets Jun 8 2016 00:22:57
rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3fff001c,len:1044 load:0x40078000,len:8896 load:0x40080400,len:5816 entry 0x400806ac
I am Using Esp32arduino and FreeRTOS for programming. The error is in the semaphore from the interrupt but I couldn't be able to find out exact solution. Please help me out guys.
#include <ArduinoJson.h>
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>
#if CONFIG_FREERTOS_UNICORE
static const BaseType_t app_cpu = 0;
#else
static const BaseType_t app_cpu = 1;
#endif
//ADC Related Global Variables
static const uint16_t timer_divider = 80;
static const uint64_t timer_max_count = 1000;
static const int adc_pin = A0;
static const int BUF_SIZE = 1000;
static int buf[BUF_SIZE];
int Buff_Len = 0;
static int Read = 0;
static int Write = 0;
static int count = 0;
static float avg = 0;
int i = 0;
int BLE_flag = 0;
String cmd;
static hw_timer_t *timer = NULL;
static uint16_t val;
static int count1 = 0;
static SemaphoreHandle_t bin_sem = NULL;
static SemaphoreHandle_t bin_sem2 = NULL;
static portMUX_TYPE spinlock = portMUX_INITIALIZER_UNLOCKED;
//ADC Related Global Variables
//BLE Global Variable
char Reading[4];
BLEServer *pServer = NULL;
BLECharacteristic *pTxCharacteristic;
bool deviceConnected = false;
bool oldDeviceConnected = false;
//Declaration BLE necessary Classes
#define SERVICE_UUID "6E400001-B5A3-F393-E0A9-E50E24DCCA9E" // UART service UUID
#define CHARACTERISTIC_UUID_TX "6E400003-B5A3-F393-E0A9-E50E24DCCA9E"
class MyServerCallbacks:public BLEServerCallbacks
{
void onConnect (BLEServer * pServer)
{
deviceConnected = true;
};
void onDisconnect (BLEServer * pServer)
{
deviceConnected = false;
}
};
//BLE Global Variables
//Task Section
void IRAM_ATTR onTimer ()
{
//sampling
xSemaphoreGiveFromISR (bin_sem2, &task_woken);
if (task_woken)
{
portYIELD_FROM_ISR ();
}
}
void move_to_Queue (void *parameters)
{
while (1)
{
xSemaphoreTake (bin_sem2, portMAX_DELAY);
if (Buff_Len == BUF_SIZE || count1 > 2000)
{
Serial.println ("Buffer is full");
xSemaphoreGive (bin_sem);
}
else
{
// storing the instantaneous sample value to buffer
}
}
}
void BLE_Task (void *parameters)
{
while (1) {
xSemaphoreTake (bin_sem, portMAX_DELAY);
Serial.println ("BLE");
// sending the data\lu
delay (10); // bluetooth stack will go into congestion, if too many packets are sent
}
}
Serial.println ();
}
}
void setup ()
{
// put your setup code here, to run once:
Serial.begin (115200);
vTaskDelay (1000 / portTICK_PERIOD_MS);
//BLE Declarations
BLEDevice::init ("UART Service");
pServer = BLEDevice::createServer ();
pServer->setCallbacks (new MyServerCallbacks ());
BLEService *pService = pServer->createService (SERVICE_UUID);
pTxCharacteristic = pService->createCharacteristic (CHARACTERISTIC_UUID_TX,
BLECharacteristic::
PROPERTY_NOTIFY);
pTxCharacteristic->addDescriptor (new BLE2902 ());
pService->start ();
pServer->getAdvertising ()->start ();
Serial.println ("Waiting a client connection to notify...");
//BLE Declaration
//ADC Semaphore and Timer Declarations
bin_sem = xSemaphoreCreateBinary ();
bin_sem2 = xSemaphoreCreateBinary ();
if (bin_sem == NULL || bin_sem2 == NULL)
{
Serial.println ("Could not create semaphore");
ESP.restart ();
}
xTaskCreatePinnedToCore (move_to_Queue,
"move_to_Queue", 1024, NULL, 2, NULL, app_cpu);
xTaskCreatePinnedToCore (BLE_Task,
"BLE_Task", 2048, NULL, 2, NULL, app_cpu);
timer = timerBegin (0, timer_divider, true);
// Provide ISR to timer (timer, function, edge)
timerAttachInterrupt (timer, &onTimer, true);
// At what count should ISR trigger (timer, count, autoreload)
timerAlarmWrite (timer, timer_max_count, true);
// Allow ISR to trigger
timerAlarmEnable (timer);
vTaskDelete (NULL);
}
void loop ()
{
// put your main code here, to run repeatedly:
}
`
Whole code: https://pastebin.com/K8ppkG28
Thanks in advance guys