S K UCI / Mbed 2 deprecated AutonomousDAQ

Arianna autonomous DAQ firmware

Dependencies:   mbed SDFileSystemFilinfo AriSnProtocol NetServicesMin AriSnComm MODSERIAL PowerControlClkPatch DS1820OW

Watchdog.h@40:1324da35afd4, 2013-10-05 (annotated)

Committer:
uci1
Date:
Sat Oct 05 04:45:22 2013 +0000
Revision:
40:1324da35afd4
Parent:
22:f957c4f840ad
Child:
62:4b59c1eb429f
first commit of major overhaul to 2013-2014 mbed code. NOT YET FULLY TESTED. too many changes to list (fix local file receive, fix rates, external comm packes, big SD cards, get to comm win w/o SD, v8 config frame, v4 files, SBD buffering changes...)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
uci1 0:664899e0b988 1 #ifndef MB_Watchdog
uci1 0:664899e0b988 2 #define MB_Watchdog
uci1 0:664899e0b988 3
uci1 22:f957c4f840ad 4 #define WDFAILSAFE (1200u)
uci1 22:f957c4f840ad 5
uci1 40:1324da35afd4 6 // Adapted from Simon's Watchdog code from
uci1 0:664899e0b988 7 // http://mbed.org/forum/mbed/topic/508/
uci1 0:664899e0b988 8 namespace Watchdog {
uci1 0:664899e0b988 9
uci1 0:664899e0b988 10 // "kick" or "feed" the dog - reset the watchdog timer
uci1 0:664899e0b988 11 // by writing this required bit pattern
uci1 12:d472f9811262 12 inline
uci1 0:664899e0b988 13 void kick() {
uci1 0:664899e0b988 14 LPC_WDT->WDFEED = 0xAA;
uci1 0:664899e0b988 15 LPC_WDT->WDFEED = 0x55;
uci1 0:664899e0b988 16 }
uci1 0:664899e0b988 17
uci1 0:664899e0b988 18 // Load timeout value in watchdog timer and enable
uci1 12:d472f9811262 19 inline
uci1 0:664899e0b988 20 void kick(const float s) {
uci1 0:664899e0b988 21 LPC_WDT->WDCLKSEL = 0x1; // Set CLK src to PCLK
uci1 0:664899e0b988 22 // WD has a fixed /4 prescaler, PCLK default is /4
uci1 0:664899e0b988 23 static const float clk = static_cast<float>(SystemCoreClock / 16);
uci1 0:664899e0b988 24 LPC_WDT->WDTC = s * clk;
uci1 40:1324da35afd4 25 // LPC_WDT->WDMOD = 0x3; // Enabled and Reset
uci1 40:1324da35afd4 26 LPC_WDT->WDMOD |= 0x3; // Enabled and Reset
uci1 0:664899e0b988 27 kick();
uci1 0:664899e0b988 28 }
uci1 22:f957c4f840ad 29
uci1 40:1324da35afd4 30 inline
uci1 40:1324da35afd4 31 bool didWatchdogReset() {
uci1 40:1324da35afd4 32 return ( (LPC_WDT->WDMOD) & 0x4 );
uci1 40:1324da35afd4 33 }
uci1 40:1324da35afd4 34
uci1 40:1324da35afd4 35 inline
uci1 40:1324da35afd4 36 void clearResetFlag() {
uci1 40:1324da35afd4 37 LPC_WDT->WDMOD &= ~(0x4);
uci1 40:1324da35afd4 38 }
uci1 40:1324da35afd4 39
uci1 22:f957c4f840ad 40 struct SnKickStarter {
uci1 22:f957c4f840ad 41 SnKickStarter(const float s) {
uci1 22:f957c4f840ad 42 Watchdog::kick(s);
uci1 22:f957c4f840ad 43 }
uci1 22:f957c4f840ad 44 };
uci1 0:664899e0b988 45
uci1 0:664899e0b988 46 };
uci1 0:664899e0b988 47
uci1 0:664899e0b988 48
uci1 0:664899e0b988 49 #endif // MB_Watchdog