Tomonori Kuroki
/
MuWatchdog
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Fork of
Watchdog
by 
David Smart
Diff: Watchdog.cpp
- Revision:
- 19:3b172e42d8ee
- Parent:
- 18:edfbf294c9e2
- Child:
- 21:dc589c475a04
--- a/Watchdog.cpp Mon Mar 19 04:35:39 2018 +0000
+++ b/Watchdog.cpp Mon Mar 19 14:38:55 2018 +0000
@@ -101,13 +101,15 @@
Configure((int)(s * 1000));
}
+#define WDTOSCCTRL_Val(clk, div) ((((uint32_t)(clk)) << 5) | (((div) >> 1) - 1))
+
void Watchdog::Configure(int ms)
{
#if 0
uint32_t clk = get_wdtclock() / 4; // WD has a fixed /4 prescaler, and a 500khz oscillator
LPC_WWDT->TC = (ms * clk) / 1000;
#else
- LPC_SYSCON->WDTOSCCTRL = (0xA << 5); // wdt_osc_clk = Fclkana/2, Fclkana = 3.5MHz
+ LPC_SYSCON->WDTOSCCTRL = WDTOSCCTRL_Val(10, 2); // wdt_osc_clk = Fclkana/2, Fclkana = 3.5MHz
LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 17); // Enable Clock WWDT
LPC_SYSCON->PDRUNCFG &= ~(1 << 6); // Enable Power WDTOSC_PD
uint32_t clk = ((3500000/2)/4); // COUNT = wdt_osc_clk/4