Penn Electric Racing / Mbed 2 deprecated SystemManagement

System Management code

Dependencies:   mbed CANBuffer Watchdog MODSERIAL mbed-rtos xbeeRelay IAP

Fork of SystemManagement by Martin Deng

Libs/LatchMonitor/LatchMonitor.cpp@30:91af74a299e1, 2014-11-13 (annotated)

Committer:
pspatel321
Date:
Thu Nov 13 10:53:10 2014 +0000
Revision:
30:91af74a299e1
Child:
36:0afc0fc8f86b
Parth's edits for the week.; DC-DC completed and fixed, IMD updated, LatchMonitor and Temperature added.  Serial dashboard updated.  File structure changed Everything tested.  Compiles and runs.; Still need to write CAN in/out interface.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pspatel321 30:91af74a299e1 1 #include "LatchMonitor.h"
pspatel321 30:91af74a299e1 2
pspatel321 30:91af74a299e1 3 LatchMonitor::LatchMonitor(LPC_pin _ok, LPC_pin _fault, unsigned int startupDelay_ms):okPin(_ok, PullDown), faultPin(_fault, PullDown) {
pspatel321 30:91af74a299e1 4
pspatel321 30:91af74a299e1 5 // Power-on reset detected
pspatel321 30:91af74a299e1 6 if (LPC_SC->RSID & 1) {
pspatel321 30:91af74a299e1 7 LPC_SC->RSID = 1; // Clear POR flag
pspatel321 30:91af74a299e1 8 started = false; // Use the blocking startup timer
pspatel321 30:91af74a299e1 9 startup.attach_us(this, &LatchMonitor::startupDelay, startupDelay_ms*1000);
pspatel321 30:91af74a299e1 10 } else {
pspatel321 30:91af74a299e1 11 started = true; // Not a power-cycle, do not use the timer
pspatel321 30:91af74a299e1 12 }
pspatel321 30:91af74a299e1 13 }
pspatel321 30:91af74a299e1 14
pspatel321 30:91af74a299e1 15 void LatchMonitor::startupDelay() {
pspatel321 30:91af74a299e1 16 started = true;
pspatel321 30:91af74a299e1 17 }
pspatel321 30:91af74a299e1 18 char LatchMonitor::update() {
pspatel321 30:91af74a299e1 19 char ret = 0;
pspatel321 30:91af74a299e1 20 ret |= (!okPin << 0); // Mirror the ok pin
pspatel321 30:91af74a299e1 21 ret |= (faultPin << 1); // Copy the fault pin
pspatel321 30:91af74a299e1 22
pspatel321 30:91af74a299e1 23 if (started) {
pspatel321 30:91af74a299e1 24 ret |= !okPin << 2; // Mirror the ok pin when started only
pspatel321 30:91af74a299e1 25 if (!okPin && !faultPin) { // If started && okFault but not caught in hardware
pspatel321 30:91af74a299e1 26 ret |= 1 << 3;
pspatel321 30:91af74a299e1 27 }
pspatel321 30:91af74a299e1 28 }
pspatel321 30:91af74a299e1 29 return ret;
pspatel321 30:91af74a299e1 30 }