test AnalogIn_Diff.lib for board K64F
Dependencies: AnalogIn_Diff_ok mbed
main.cpp@1:c340607e4661, 2014-07-10 (annotated)
- Committer:
- fblanc
- Date:
- Thu Jul 10 14:44:30 2014 +0000
- Revision:
- 1:c340607e4661
- Parent:
- 0:9eeda5b17b5b
- Child:
- 2:bf4f474ff746
min et max OK
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
fblanc | 0:9eeda5b17b5b | 1 | #include "mbed.h" |
fblanc | 0:9eeda5b17b5b | 2 | #include "math.h" |
fblanc | 0:9eeda5b17b5b | 3 | #include "MovingAverage.h" |
fblanc | 0:9eeda5b17b5b | 4 | //USBSerial pc; |
fblanc | 1:c340607e4661 | 5 | #define max(a,b) (a>=b?a:b) |
fblanc | 1:c340607e4661 | 6 | #define min(a,b) (a<=b?a:b) |
fblanc | 1:c340607e4661 | 7 | struct { |
fblanc | 1:c340607e4661 | 8 | double gain; |
fblanc | 1:c340607e4661 | 9 | double offset; |
fblanc | 0:9eeda5b17b5b | 10 | //AnalogIn adc; |
fblanc | 1:c340607e4661 | 11 | } adc_volt,adc_curr; |
fblanc | 0:9eeda5b17b5b | 12 | Serial pc(USBTX, USBRX); |
fblanc | 0:9eeda5b17b5b | 13 | AnalogIn adc_1(PTB2); |
fblanc | 0:9eeda5b17b5b | 14 | AnalogIn adc_2(PTB3); |
fblanc | 0:9eeda5b17b5b | 15 | Ticker flipperADC; |
fblanc | 0:9eeda5b17b5b | 16 | DigitalOut led1(LED_RED); |
fblanc | 0:9eeda5b17b5b | 17 | DigitalOut led2(LED_GREEN); |
fblanc | 0:9eeda5b17b5b | 18 | DigitalOut led3(LED_BLUE); |
fblanc | 1:c340607e4661 | 19 | MovingAverage<float> Trms_float(100,230); |
fblanc | 1:c340607e4661 | 20 | //MovingAverage<int> Trms_int(100,0); |
fblanc | 1:c340607e4661 | 21 | float min=250000; |
fblanc | 1:c340607e4661 | 22 | float max=0; |
fblanc | 1:c340607e4661 | 23 | bool min_OK=false; |
fblanc | 1:c340607e4661 | 24 | void flipADC() |
fblanc | 1:c340607e4661 | 25 | { |
fblanc | 1:c340607e4661 | 26 | float val; |
fblanc | 0:9eeda5b17b5b | 27 | led1=1; |
fblanc | 0:9eeda5b17b5b | 28 | int val_i32=adc_2.read_u16()-adc_1.read_u16(); //read ADC |
fblanc | 0:9eeda5b17b5b | 29 | |
fblanc | 1:c340607e4661 | 30 | val=((float)val_i32*adc_volt.gain)-adc_volt.offset; |
fblanc | 1:c340607e4661 | 31 | Trms_float.Insert(val*val); |
fblanc | 1:c340607e4661 | 32 | val=Trms_float.GetAverage(); |
fblanc | 1:c340607e4661 | 33 | max=max(val,max); |
fblanc | 1:c340607e4661 | 34 | if(min_OK==true) |
fblanc | 1:c340607e4661 | 35 | min=min(val,min); |
fblanc | 1:c340607e4661 | 36 | led1=0; |
fblanc | 1:c340607e4661 | 37 | } |
fblanc | 0:9eeda5b17b5b | 38 | |
fblanc | 1:c340607e4661 | 39 | int main() |
fblanc | 1:c340607e4661 | 40 | { |
fblanc | 0:9eeda5b17b5b | 41 | led1=1; |
fblanc | 0:9eeda5b17b5b | 42 | led2=0; |
fblanc | 0:9eeda5b17b5b | 43 | led3=1; |
fblanc | 1:c340607e4661 | 44 | pc.baud(115200); |
fblanc | 1:c340607e4661 | 45 | adc_volt.gain=129.0*3.3/65535.0; |
fblanc | 1:c340607e4661 | 46 | adc_volt.offset=0.0; |
fblanc | 1:c340607e4661 | 47 | |
fblanc | 1:c340607e4661 | 48 | flipperADC.attach_us(&flipADC, 200); //200µs |
fblanc | 1:c340607e4661 | 49 | wait (1); |
fblanc | 1:c340607e4661 | 50 | min_OK=true; |
fblanc | 0:9eeda5b17b5b | 51 | while (true) { |
fblanc | 1:c340607e4661 | 52 | |
fblanc | 0:9eeda5b17b5b | 53 | |
fblanc | 0:9eeda5b17b5b | 54 | led3=1; |
fblanc | 0:9eeda5b17b5b | 55 | |
fblanc | 1:c340607e4661 | 56 | pc.printf("RMS=%0.1f \r\n",sqrt(Trms_float.GetAverage())); |
fblanc | 1:c340607e4661 | 57 | pc.printf("min=%0.1f max=%0.1f\r\n",sqrt(min),sqrt(max)); |
fblanc | 0:9eeda5b17b5b | 58 | led3=0; |
fblanc | 1:c340607e4661 | 59 | wait (1); |
fblanc | 0:9eeda5b17b5b | 60 | } |
fblanc | 0:9eeda5b17b5b | 61 | } |