Question
Arduino: STM32G0B1 Emulated EEPROM
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Hello All
I'm working on an load cell based solution using ADS1232 as AFE. Due to the constraints, we have not used external EEPROM.
IDE- Arduino IDE - 2.3.2
Library used - https://github.com/khoih-prog/FlashStorage_STM32
EVB - Nucleo-G0B1RE
Target Device - STM32G0B1RC
ISSUE- ON EVB, I'm able to read, store, fetch and modify the flash content.. however, same code is not working for target board.
Attachment - Target Board Logs
Attachment - EVB Board Logs
Attachment - Arduino settings
//-------CODE----
#include <FlashStorage_STM32.h>
#define STR_SW PD_2 // Button pin
#define DIG_SW PD_3 // UP
const int WRITTEN_SIGNATURE = 0xBEEFDEED;
HardwareSerial RS232Serial(PB_9, PB_8); // UART3 TX, RX
volatile bool buttonPressed = false;
// EEPROM base address
#define ADDR_SIGNATURE 0
#define ADDR_COUNTERS 8 // Leave space for signature
struct CounterData {
int count1;
int count2;
int count3;
};
CounterData counters = {0, 0, 0};
void handleButtonISR() {
buttonPressed = true;
}
void setup() {
RS232Serial.begin(115200);
while (!RS232Serial);
delay(200);
// eeprom_clr();
RS232Serial.println("\n--- Start EmulatedEEPROM with Struct ---");
RS232Serial.println(FLASH_STORAGE_STM32_VERSION);
RS232Serial.println();
pinMode(STR_SW, INPUT_PULLUP);
pinMode(DIG_SW, INPUT);
attachInterrupt(digitalPinToInterrupt(STR_SW), handleButtonISR, RISING);
RS232Serial.print("Emulated EEPROM length (bytes) = ");
RS232Serial.println(EEPROM.length());
RS232Serial.println();
int signature = 0;
EEPROM.get(ADDR_SIGNATURE, signature);
if (signature != WRITTEN_SIGNATURE) {
RS232Serial.println("EEPROM uninitialized. Writing defaults...");
counters = {0, 0, 0};
EEPROM.put(ADDR_SIGNATURE, WRITTEN_SIGNATURE);
EEPROM.put(ADDR_COUNTERS, counters);
EEPROM.commit();
RS232Serial.println("Default values committed.");
} else {
EEPROM.get(ADDR_COUNTERS, counters);
RS232Serial.println("EEPROM valid. Reading previous values...");
}
RS232Serial.print("Stored Value Count1: "); RS232Serial.println(counters.count1);
RS232Serial.print("Stored Value Count2: "); RS232Serial.println(counters.count2);
RS232Serial.print("Stored Value Count3: "); RS232Serial.println(counters.count3);
}
void loop() {
static uint32_t loopCount = 0;
static uint32_t lastDebounce = 0;
if (digitalRead(DIG_SW) == LOW && millis() - lastDebounce > 150) {
lastDebounce = millis();
counters.count1++;
counters.count2 += 2;
counters.count3 += 3;
RS232Serial.println("Button Press Detected. Counters Updated:");
RS232Serial.print("Count1: "); RS232Serial.println(counters.count1);
RS232Serial.print("Count2: "); RS232Serial.println(counters.count2);
RS232Serial.print("Count3: "); RS232Serial.println(counters.count3);
}
if (buttonPressed) {
buttonPressed = false;
RS232Serial.println("Commit Press Detected. Counters Stored:");
EEPROM.put(ADDR_COUNTERS, counters);
EEPROM.commit();
RS232Serial.print("Committed Value Count1: "); RS232Serial.println(counters.count1);
RS232Serial.print("Committed Value Count2: "); RS232Serial.println(counters.count2);
RS232Serial.print("Committed Value Count3: "); RS232Serial.println(counters.count3);
}
if (++loopCount % 50 == 0) {
RS232Serial.println("Loop running...");
}
delay(10);
}