queball1999
commented
2 years ago Cannot get the code to compile on CubeCell board:
*This happens on both Mac and PC
I have implemented I2C protocols in the code, but whenever I make 'Wire.onRequest()' or 'Wire.onReceive()' calls the code will not compile; it keeps giving me the following error:
undefined reference to TwoWire::onReceive(void (*)(int))
collect2.exe: error: ld returned 1 exit status
exit status 1
Error compiling for board CubeCell-GPS（HTCC-AB02S）.
The following code is what I am currently using:
#define MASTER_ADDRESS 0x04
...
void setup() {
Wire.begin(MASTER_ADDRESS);
Wire.onReceive(receiveEvent);
Wire.onRequest(requestEvent);
}
...
void receiveEvent(int bytes) {
Wire.read();
}
void requestEvent() {
Wire.write('test')
}
I am wondering if something is wrong with the code or if something is wrong with the board inside of the Arduino IDE. I did find a forum that talked about this issue and had possible solutions for Mac and Windows, but I was unsuccessful in getting it to work. The issue only happens when the calls to 'Wire.onRequest()' or 'Wire.onReceive()' are made.
I want to be able to ask the GPS module for data using the Raspberry Pi. That way we can parse this data on the Pi and pack it in with the rest of the data, which will be transmitted to the ground station.
We first want to configure the LoRa GPS board with a method of transmission, TX/RX, or I2C. Once we decide this, we want to make the LoRa GPS board send data when requested from the Raspberry Pi. We probably want to pack the data and send it from the LoRa GPS board, then depack it and parse it on the Raspberry Pi.