- Yujie Yu, Net ID yy3913
- Weijie Li, Net ID wl2369
- Tong Wu, Net ID tw2593
- Junda Ai, Net ID ja4426
This project uses the library mbed-goncaloc/ADXL_I2C, to install it as dependency, run the following command:
pio pkg installUpon successful installation of the dependency, you might get the following error:
identifier "wait_ms" is undefined
Quote from arm mbed API reference about wait:
The function wait is deprecated in favor of explicit sleep functions. To sleep, replace wait with ThisThread::sleep_for (C++) or thread_sleep_for (C). To wait (without sleeping), call wait_us. wait_us is safe to call from ISR context.
Change the 3 affected functions in ADXL_I2C.cpp to the following per reference above:
int ADXL345::oneByteRead(int address) {
char rx[1];
rx[0] = address;
i2c_ -> write((ADXL345_I2C_ADDRESS << 1) & 0xFE, rx, 1);
ThisThread::sleep_for(1ms); // change
i2c_ -> read((ADXL345_I2C_ADDRESS << 1) | 0x01, rx, 1);
ThisThread::sleep_for(1ms) // change
return rx[0];
}
void ADXL345::oneByteWrite(int address, char data) {
char tx[2];
tx[0] = address;
tx[1] = data;
i2c_ -> write((ADXL345_I2C_ADDRESS << 1) & 0xFE, tx, 2);
ThisThread::sleep_for(1ms) // change
}
void ADXL345::multiByteRead(int address, char* data, int bytes) {
char cmd[6];
cmd[0] = address;
i2c_ -> write((ADXL345_I2C_ADDRESS << 1) & 0xFE, cmd, 1);
ThisThread::sleep_for(1ms) // change
i2c_ -> read((ADXL345_I2C_ADDRESS << 1) | 0x01, data, bytes );
ThisThread::sleep_for(1ms) // change
}