David Eisner / Mbed 2 deprecated drain

Drain batteries through an LM324 controlled CEB6030L from a defunct graphics card

Dependencies:   mbed FastAnalogIn PID mbed-rtos

main.cpp@0:e7492a4f4b2f, 2016-07-05 (annotated)

Committer:
eisd
Date:
Tue Jul 05 08:39:20 2016 +0000
Revision:
0:e7492a4f4b2f
Child:
1:712b9b5470d4
Rough hand calibration

Who changed what in which revision?

UserRevisionLine numberNew contents of line
eisd 0:e7492a4f4b2f 1 #include "mbed.h"
eisd 0:e7492a4f4b2f 2 #include "rtos.h"
eisd 0:e7492a4f4b2f 3 #include "FastAnalogIn.h"
eisd 0:e7492a4f4b2f 4
eisd 0:e7492a4f4b2f 5 AnalogOut Iset(PTE30);
eisd 0:e7492a4f4b2f 6 FastAnalogIn Iget(PTE20);
eisd 0:e7492a4f4b2f 7 AnalogIn Vbat(PTB0);
eisd 0:e7492a4f4b2f 8 int flop = 0;
eisd 0:e7492a4f4b2f 9 void adjust() {
eisd 0:e7492a4f4b2f 10 //flop = (flop + 1) % 4;
eisd 0:e7492a4f4b2f 11 Iset.write(flop == 0? 0.2/4.61 : 0);
eisd 0:e7492a4f4b2f 12 }
eisd 0:e7492a4f4b2f 13 float k = 0.01, iget = Iget.read(), vbat = Vbat.read(), vbat_rest = Vbat.read();
eisd 0:e7492a4f4b2f 14 void filter() {
eisd 0:e7492a4f4b2f 15 iget = k * Iget.read() + (1 - k) * iget;
eisd 0:e7492a4f4b2f 16 vbat = k * Vbat.read() + (1 - k) * vbat;
eisd 0:e7492a4f4b2f 17 if (Iset.read() == 0)
eisd 0:e7492a4f4b2f 18 vbat_rest = k * Vbat.read() + (1 - k) * vbat;
eisd 0:e7492a4f4b2f 19 }
eisd 0:e7492a4f4b2f 20 int main()
eisd 0:e7492a4f4b2f 21 {
eisd 0:e7492a4f4b2f 22 Ticker t;
eisd 0:e7492a4f4b2f 23 t.attach(&adjust, 5.0);
eisd 0:e7492a4f4b2f 24 Ticker t2;
eisd 0:e7492a4f4b2f 25 t2.attach_us(&filter, 1000);
eisd 0:e7492a4f4b2f 26 Iset.write(0.0);
eisd 0:e7492a4f4b2f 27 Serial pc(USBTX, USBRX);
eisd 0:e7492a4f4b2f 28 pc.baud(115200);
eisd 0:e7492a4f4b2f 29 int i = 0;
eisd 0:e7492a4f4b2f 30
eisd 0:e7492a4f4b2f 31 while (true) {
eisd 0:e7492a4f4b2f 32 //pc.printf("Iset %f Iget %6d %f Vbat %6d %f \r", Iset.read(), Iget.read_u16(), Iget.read(), Vbat.read_u16(), Vbat.read());
eisd 0:e7492a4f4b2f 33 float x = Iset.read();
eisd 0:e7492a4f4b2f 34 pc.printf("Iset %f Iget %8d %f %f", Iset.read(), Iget.read_u16(), Iget.read() * 36.140224, iget * 36.140224);
eisd 0:e7492a4f4b2f 35 if ((i = (i + 1) % 50) == 0) {
eisd 0:e7492a4f4b2f 36 Iset = 0;
eisd 0:e7492a4f4b2f 37 Thread::wait(50);
eisd 0:e7492a4f4b2f 38 }
eisd 0:e7492a4f4b2f 39 pc.printf(" Vbat %8d %f %f %f\r", Vbat.read_u16(), Vbat.read() * 36.7538, vbat * 36.7538, vbat_rest * 36.7538);
eisd 0:e7492a4f4b2f 40 Iset = x;
eisd 0:e7492a4f4b2f 41 Thread::wait(100);
eisd 0:e7492a4f4b2f 42 }
eisd 0:e7492a4f4b2f 43 }