James Allen
ADXL345 triple axis, digital accelerometer library.
main.cpp@0:75c7bfd01ea0, 2011-03-11 (annotated)
- Committer:
- jrha
- Date:
- Fri Mar 11 15:54:40 2011 +0000
- Revision:
- 0:75c7bfd01ea0
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| jrha | 0:75c7bfd01ea0 | 1 | #include "mbed.h" |
| jrha | 0:75c7bfd01ea0 | 2 | #include "ADXL345_I2C.h" |
| jrha | 0:75c7bfd01ea0 | 3 | |
| jrha | 0:75c7bfd01ea0 | 4 | //ADXL345 accelerometer(p5, p6, p7, p8); |
| jrha | 0:75c7bfd01ea0 | 5 | ADXL345_I2C accelerometer(p9, p10); |
| jrha | 0:75c7bfd01ea0 | 6 | Serial pc(USBTX, USBRX); |
| jrha | 0:75c7bfd01ea0 | 7 | |
| jrha | 0:75c7bfd01ea0 | 8 | int main() |
| jrha | 0:75c7bfd01ea0 | 9 | { |
| jrha | 0:75c7bfd01ea0 | 10 | |
| jrha | 0:75c7bfd01ea0 | 11 | int readings[3] = {0, 0, 0}; |
| jrha | 0:75c7bfd01ea0 | 12 | |
| jrha | 0:75c7bfd01ea0 | 13 | pc.printf("Starting ADXL345 test...\n"); |
| jrha | 0:75c7bfd01ea0 | 14 | pc.printf("Device ID is: 0x%02x\n", accelerometer.getDevId()); |
| jrha | 0:75c7bfd01ea0 | 15 | |
| jrha | 0:75c7bfd01ea0 | 16 | //Go into standby mode to configure the device. |
| jrha | 0:75c7bfd01ea0 | 17 | accelerometer.setPowerControl(0x00); |
| jrha | 0:75c7bfd01ea0 | 18 | |
| jrha | 0:75c7bfd01ea0 | 19 | //Full resolution, +/-16g, 4mg/LSB. |
| jrha | 0:75c7bfd01ea0 | 20 | accelerometer.setDataFormatControl(0x0B); |
| jrha | 0:75c7bfd01ea0 | 21 | |
| jrha | 0:75c7bfd01ea0 | 22 | //3.2kHz data rate. |
| jrha | 0:75c7bfd01ea0 | 23 | accelerometer.setDataRate(ADXL345_3200HZ); |
| jrha | 0:75c7bfd01ea0 | 24 | |
| jrha | 0:75c7bfd01ea0 | 25 | //Measurement mode. |
| jrha | 0:75c7bfd01ea0 | 26 | accelerometer.setPowerControl(0x08); |
| jrha | 0:75c7bfd01ea0 | 27 | |
| jrha | 0:75c7bfd01ea0 | 28 | while (1) |
| jrha | 0:75c7bfd01ea0 | 29 | { |
| jrha | 0:75c7bfd01ea0 | 30 | |
| jrha | 0:75c7bfd01ea0 | 31 | wait(0.1); |
| jrha | 0:75c7bfd01ea0 | 32 | |
| jrha | 0:75c7bfd01ea0 | 33 | accelerometer.getOutput(readings); |
| jrha | 0:75c7bfd01ea0 | 34 | |
| jrha | 0:75c7bfd01ea0 | 35 | //13-bit, sign extended values. |
| jrha | 0:75c7bfd01ea0 | 36 | pc.printf("%i, %i, %i\n", (int16_t)readings[0], (int16_t)readings[1], (int16_t)readings[2]); |
| jrha | 0:75c7bfd01ea0 | 37 | } |
| jrha | 0:75c7bfd01ea0 | 38 | |
| jrha | 0:75c7bfd01ea0 | 39 | } |