Lin Team / Mbed 2 deprecated AD7190

AD7190

Dependencies:   mbed

main.cpp@0:e74e2fd7a61e, 2020-08-06 (annotated)

Committer:
peng103617
Date:
Thu Aug 06 06:51:32 2020 +0000
Revision:
0:e74e2fd7a61e
AD7190

Who changed what in which revision?

UserRevisionLine numberNew contents of line
peng103617 0:e74e2fd7a61e 1 /* -- MBED - AD7190
peng103617 0:e74e2fd7a61e 2
peng103617 0:e74e2fd7a61e 3 Porting by Rododo Science. .... 2019/9/13
peng103617 0:e74e2fd7a61e 4
peng103617 0:e74e2fd7a61e 5 -- */
peng103617 0:e74e2fd7a61e 6
peng103617 0:e74e2fd7a61e 7
peng103617 0:e74e2fd7a61e 8 #include "mbed.h"
peng103617 0:e74e2fd7a61e 9 #include "AD7190.h"
peng103617 0:e74e2fd7a61e 10 SPI spi(D11, D12, D13); // mosi, miso, sclk
peng103617 0:e74e2fd7a61e 11 DigitalOut cs(D10); // Different CS operations
peng103617 0:e74e2fd7a61e 12 DigitalIn ad_rdy(D9); // Use of a _RDY Pin
peng103617 0:e74e2fd7a61e 13
peng103617 0:e74e2fd7a61e 14
peng103617 0:e74e2fd7a61e 15 Serial pc(USBTX, USBRX); // tx, rx
peng103617 0:e74e2fd7a61e 16
peng103617 0:e74e2fd7a61e 17 void setup()
peng103617 0:e74e2fd7a61e 18 {
peng103617 0:e74e2fd7a61e 19 cs.write(1);
peng103617 0:e74e2fd7a61e 20 wait(1);
peng103617 0:e74e2fd7a61e 21 pc.printf("Example Start\n");
peng103617 0:e74e2fd7a61e 22 cs.write(0);
peng103617 0:e74e2fd7a61e 23 while(AD7190_Init(800)==0){
peng103617 0:e74e2fd7a61e 24 pc.printf("Can't allocate AD7190\r\n");
peng103617 0:e74e2fd7a61e 25 wait(5);
peng103617 0:e74e2fd7a61e 26 }
peng103617 0:e74e2fd7a61e 27
peng103617 0:e74e2fd7a61e 28 /* Calibrates channel AIN3(+) - AIN4(-). */
peng103617 0:e74e2fd7a61e 29 AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_AIN3P_AIN4M);
peng103617 0:e74e2fd7a61e 30
peng103617 0:e74e2fd7a61e 31 }
peng103617 0:e74e2fd7a61e 32
peng103617 0:e74e2fd7a61e 33 void loop()
peng103617 0:e74e2fd7a61e 34 {
peng103617 0:e74e2fd7a61e 35
peng103617 0:e74e2fd7a61e 36 unsigned long val = AD7190_TemperatureRead();
peng103617 0:e74e2fd7a61e 37 //pc.printf("Temperature = \t =%lu \r\n", val);
peng103617 0:e74e2fd7a61e 38
peng103617 0:e74e2fd7a61e 39 AD7190_ChannelSelect(AD7190_CH_AIN1P_AIN2M);
peng103617 0:e74e2fd7a61e 40 /* Selects unipolar operation and ADC's input range to +-Vref/1. plesase refer AD7190_CONF_GAIN(x) */
peng103617 0:e74e2fd7a61e 41 AD7190_RangeSetup(0, AD7190_CONF_GAIN_64);
peng103617 0:e74e2fd7a61e 42
peng103617 0:e74e2fd7a61e 43 //val = AD7190_SingleConversion();
peng103617 0:e74e2fd7a61e 44 //pc.printf("ADC = \t%lu \r\n", val);
peng103617 0:e74e2fd7a61e 45
peng103617 0:e74e2fd7a61e 46 val = AD7190_ContinuousReadAvg(8);
peng103617 0:e74e2fd7a61e 47 //pc.printf("ADC_avg = \t%lu \r\n", val);
peng103617 0:e74e2fd7a61e 48
peng103617 0:e74e2fd7a61e 49 double voltageAn34 = ( val * 0.00000011921 - 1 ) * 4.096 /64 ; //AIN=(輸出碼/2^23-1)*(Vref/gain)
peng103617 0:e74e2fd7a61e 50
peng103617 0:e74e2fd7a61e 51
peng103617 0:e74e2fd7a61e 52 pc.printf("%f \r\n", voltageAn34);
peng103617 0:e74e2fd7a61e 53 wait(0.01);
peng103617 0:e74e2fd7a61e 54
peng103617 0:e74e2fd7a61e 55
peng103617 0:e74e2fd7a61e 56 }
peng103617 0:e74e2fd7a61e 57
peng103617 0:e74e2fd7a61e 58
peng103617 0:e74e2fd7a61e 59 //---DON'T CHANGE BELOW----
peng103617 0:e74e2fd7a61e 60 // MBED compensate
peng103617 0:e74e2fd7a61e 61 // main() runs in its own thread in the OS
peng103617 0:e74e2fd7a61e 62 int main() {
peng103617 0:e74e2fd7a61e 63 //---Enable Debug---
peng103617 0:e74e2fd7a61e 64 pc.baud(115200);
peng103617 0:e74e2fd7a61e 65 //--Mark out to disable debug
peng103617 0:e74e2fd7a61e 66 setup();
peng103617 0:e74e2fd7a61e 67 while (true) {
peng103617 0:e74e2fd7a61e 68 loop();
peng103617 0:e74e2fd7a61e 69 }
peng103617 0:e74e2fd7a61e 70 }