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.h@36:0afc0fc8f86b, 2015-01-22 (annotated)

Committer:
pspatel321
Date:
Thu Jan 22 07:58:51 2015 +0000
Revision:
36:0afc0fc8f86b
Parent:
30:91af74a299e1
Child:
38:8efacce315ae
Tested in car with other systems.  Most features are good to go.  Except xbees need work.  The DC-DC protection features were giving problems due to spurious current measurements.  They have been edited to reduce glitchy errors.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pspatel321 30:91af74a299e1 1 #ifndef __LATCH_MONITOR_H
pspatel321 30:91af74a299e1 2 #define __LATCH_MONITOR_H
pspatel321 30:91af74a299e1 3
pspatel321 30:91af74a299e1 4 #include "mbed.h"
pspatel321 30:91af74a299e1 5
pspatel321 30:91af74a299e1 6 enum LatchMon_Status_Bits {
pspatel321 30:91af74a299e1 7 okPinF=1,
pspatel321 30:91af74a299e1 8 faultPinF=2,
pspatel321 30:91af74a299e1 9 softwareF=4,
pspatel321 30:91af74a299e1 10 hardwareF=8,
pspatel321 30:91af74a299e1 11 };
pspatel321 30:91af74a299e1 12
pspatel321 30:91af74a299e1 13 class LatchMonitor {
pspatel321 30:91af74a299e1 14
pspatel321 30:91af74a299e1 15 public:
pspatel321 30:91af74a299e1 16 // Make this startup delay longer than the actual hardware circuit delay so that it can catch errors in the circuit
pspatel321 36:0afc0fc8f86b 17 LatchMonitor(PinName _ok, PinName _fault, unsigned int startupDelay_ms);
pspatel321 30:91af74a299e1 18 /*
pspatel321 30:91af74a299e1 19 char update() returns status encoded in a char
pspatel321 30:91af74a299e1 20 bit0 = okPinFault - equals 1 when the OK pin from the monitored device is LOW indicating device fault
pspatel321 30:91af74a299e1 21 bit1 = faultPinFault - equals 1 when the sys. mgmt. latch circuit is faulted with startup timer in hardware
pspatel321 30:91af74a299e1 22 bit2 = softwareFault - equals 1 when the LatchMonitor fault occurs with startup timer in software
pspatel321 30:91af74a299e1 23 bit3 = hardwareFault - the circuit is supposed to signal fault on the hardware pin but its not doing so!
pspatel321 30:91af74a299e1 24 */
pspatel321 30:91af74a299e1 25 char update();
pspatel321 30:91af74a299e1 26 private:
pspatel321 30:91af74a299e1 27 Timeout startup;
pspatel321 30:91af74a299e1 28 void startupDelay();
pspatel321 30:91af74a299e1 29 bool started;
pspatel321 36:0afc0fc8f86b 30 DigitalIn okPin;
pspatel321 36:0afc0fc8f86b 31 DigitalIn faultPin;
pspatel321 30:91af74a299e1 32 };
pspatel321 30:91af74a299e1 33
pspatel321 30:91af74a299e1 34 #endif