Problem with sending message longer than 4 characters & Problem with firmware update

[PTyl.1]

Hi,

I've got 2 I-Nucleo-LRWAN1 shields on 2 STM32 Nucleo64 F103-RB boards. I've uploaded PingPong example from : https://github.com/stm32duino/I-NUCLEO-LRWAN1 and it works but when I've tried to modify code and send longer message (for example "ABCDEFG123") i received on second board only first four characters "ABCD".

I checked modules by BridgeSerial and it works. Software version is: 2.9.

I cannot update firmware to newer version, after connection to ST-Link on STM32 Board there is info in ST-Link utility that it has Read Out Protection.

I also paste my simple code I used for testing.

Tx:

#include "LoRaRadio.h"
 
 #define SEND_PERIOD_MS 2000
 
HardwareSerial SerialLora(PC_11, PC_10);
 
uint8_t Message[] = "ABCDEFGH";
 
 //uint8_t len=0;
 
 //int timer=0;
 
 //uint8_t x=0;
 
void setup() {
 
 Serial.begin(115200);
 
 Serial.println("!! Tx !!");
 
while(!loraRadio.begin(&SerialLora)) {
 
 Serial.println("LoRa module not ready");
 
 delay(1000);
 
 }
 
Serial.println("LoRa module ready\n");
 
 }
 
 // len=sizeof(Message);
 
 // loraRadio.write(Message,len);
 
 // timer=millis();
 
 //
 
void loop() {
 
 //len=sizeof(Message);
 
 loraRadio.write(Message,9);
 
 Serial.println("Message sent : ");
 
 //Serial.println(x);
 
 delay(3000);
 
}

Rx:

#include "LoRaRadio.h"
 
HardwareSerial SerialLora(PC_11, PC_10);
 
//uint8_t x=0;
 
void setup() {
 
 // put your setup code here, to run once:
 
 Serial.begin(115200);
 
 Serial.println("!! Rx !!");
 
while(!loraRadio.begin(&SerialLora)) {
 
 Serial.println("LoRa module not ready");
 
 delay(1000);
 
 }
 
Serial.println("LoRa module ready\n");
 
 }
 
 // if(loraRadio.read(rcvData) > 0) {
 
 // Serial.println((char *) rcvData);
 
 // }
 
 //}
 
void loop() {
 
uint8_t rcvData[64];
 
// put your main code here, to run repeatedly:
 
 if(loraRadio.read(rcvData) > 0){
 
 Serial.println("Receiver");
 
 Serial.println((char *)rcvData);
 
 delay(500);
 
 Serial.println((char *)rcvData);
 
 }
 
//Serial.println((char *)rcvData);
 
 // if(x > 0) {
 
 //Serial.println((char *) rcvData);
 
// Serial.println(x);
 
memset(rcvData, 0, 10);
 
 delay(1000);
 
}

I'd be grateful for any help.

Thanks in advance!

T.

[Tesla DeLorean]

>>I cannot update firmware to newer version, after connection to ST-Link on STM32 Board there is info in ST-Link utility that it has Read Out Protection.

The firmware provided by USI is locked into the device, you'd need to mass-erase that to remove the ROP, and then to replace with your own firmware.

The code on the NUCLEO board typically talks to the USI module via AT commands.

[PTyl.1]

Ok, It is understandable. If code works I assume that there is like you wrote, Nucleo talks to USI via AT commands, but unfortunatelly there is still problem with too short message that is received.