Nuvoton / Mbed OS NuMaker-mbed-tickless-example

NuMaker tickless example

wakeup_wdt.cpp@21:5424989f037f, 2021-02-25 (annotated)

Committer:
SHLIU1@OANBE02333.nuvoton.com
Date:
Thu Feb 25 15:25:00 2021 +0800
Revision:
21:5424989f037f
Parent:
20:759aab916d47 
Support the both V5.X and V6.X for mbed-os

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ccli8 16:ed2c228cbc9c 1 /* Avoid conflict with Mbed OS watchdog API
ccli8 16:ed2c228cbc9c 2 *
ccli8 16:ed2c228cbc9c 3 * Mbed OS has defined watchdog API. To avoid conflict, disable this code when target has implemented Mbed OS watchdog API.
ccli8 16:ed2c228cbc9c 4 */
ccli8 16:ed2c228cbc9c 5 #if !defined(DEVICE_WATCHDOG) || !DEVICE_WATCHDOG
ccli8 16:ed2c228cbc9c 6
ccli8 1:eb1da9d36e12 7 #include "mbed.h"
ccli8 1:eb1da9d36e12 8 #include "wakeup.h"
ccli8 16:ed2c228cbc9c 9
ccli8 20:759aab916d47 10 #if defined(TARGET_NANO100)
ccli8 10:d2e2c79389e1 11 /* This target doesn't support relocating vector table and requires overriding
ccli8 10:d2e2c79389e1 12 * vector handler at link-time. */
ccli8 10:d2e2c79389e1 13 extern "C" void WDT_IRQHandler(void)
ccli8 10:d2e2c79389e1 14 #else
ccli8 1:eb1da9d36e12 15 void WDT_IRQHandler(void)
ccli8 10:d2e2c79389e1 16 #endif
ccli8 1:eb1da9d36e12 17 {
ccli8 1:eb1da9d36e12 18 /* Check WDT interrupt flag */
ccli8 1:eb1da9d36e12 19 if (WDT_GET_TIMEOUT_INT_FLAG()) {
ccli8 1:eb1da9d36e12 20 WDT_CLEAR_TIMEOUT_INT_FLAG();
ccli8 1:eb1da9d36e12 21 WDT_RESET_COUNTER();
ccli8 1:eb1da9d36e12 22 }
ccli8 1:eb1da9d36e12 23
ccli8 1:eb1da9d36e12 24 // Check WDT wake-up flag
ccli8 1:eb1da9d36e12 25 if (WDT_GET_TIMEOUT_WAKEUP_FLAG()) {
ccli8 1:eb1da9d36e12 26 WDT_CLEAR_TIMEOUT_WAKEUP_FLAG();
ccli8 1:eb1da9d36e12 27
ccli8 1:eb1da9d36e12 28 wakeup_eventflags.set(EventFlag_Wakeup_WDT_Timeout);
ccli8 1:eb1da9d36e12 29 }
ccli8 1:eb1da9d36e12 30 }
ccli8 1:eb1da9d36e12 31
ccli8 1:eb1da9d36e12 32 void config_wdt_wakeup()
ccli8 1:eb1da9d36e12 33 {
ccli8 1:eb1da9d36e12 34 /* Enable IP module clock */
ccli8 1:eb1da9d36e12 35 CLK_EnableModuleClock(WDT_MODULE);
ccli8 1:eb1da9d36e12 36
ccli8 1:eb1da9d36e12 37 /* Select IP clock source */
ccli8 20:759aab916d47 38 #if defined(TARGET_NANO100)
ccli8 10:d2e2c79389e1 39 CLK_SetModuleClock(WDT_MODULE, 0, 0);
ccli8 10:d2e2c79389e1 40 #else
ccli8 1:eb1da9d36e12 41 CLK_SetModuleClock(WDT_MODULE, CLK_CLKSEL1_WDTSEL_LIRC, 0);
ccli8 10:d2e2c79389e1 42 #endif
ccli8 1:eb1da9d36e12 43
ccli8 1:eb1da9d36e12 44 SYS_UnlockReg();
ccli8 18:e236110ce841 45 #if defined(TARGET_M251)
ccli8 18:e236110ce841 46 /* Alarm every 2^16 LIRC clocks, disable system reset, enable system wake-up */
ccli8 18:e236110ce841 47 /* LIRC higher than other targets, so enlarge clock count */
ccli8 18:e236110ce841 48 WDT_Open(WDT_TIMEOUT_2POW16, 0, FALSE, TRUE);
ccli8 18:e236110ce841 49 #else
ccli8 1:eb1da9d36e12 50 /* Alarm every 2^14 LIRC clocks, disable system reset, enable system wake-up */
ccli8 1:eb1da9d36e12 51 WDT_Open(WDT_TIMEOUT_2POW14, 0, FALSE, TRUE);
ccli8 18:e236110ce841 52 #endif
ccli8 1:eb1da9d36e12 53 SYS_LockReg();
ccli8 10:d2e2c79389e1 54
ccli8 1:eb1da9d36e12 55 /* NOTE: The name of symbol WDT_IRQHandler is mangled in C++ and cannot override that in startup file in C.
ccli8 1:eb1da9d36e12 56 * So the NVIC_SetVector call cannot be left out. */
ccli8 1:eb1da9d36e12 57 NVIC_SetVector(WDT_IRQn, (uint32_t) WDT_IRQHandler);
ccli8 1:eb1da9d36e12 58 NVIC_EnableIRQ(WDT_IRQn);
ccli8 1:eb1da9d36e12 59 SYS_UnlockReg();
ccli8 1:eb1da9d36e12 60 /* Enable WDT timeout interrupt */
ccli8 1:eb1da9d36e12 61 WDT_EnableInt();
ccli8 1:eb1da9d36e12 62 SYS_LockReg();
ccli8 1:eb1da9d36e12 63 }
ccli8 16:ed2c228cbc9c 64
ccli8 16:ed2c228cbc9c 65 #else
ccli8 16:ed2c228cbc9c 66
ccli8 20:759aab916d47 67 #include "mbed.h"
ccli8 20:759aab916d47 68
ccli8 16:ed2c228cbc9c 69 void config_wdt_wakeup()
ccli8 16:ed2c228cbc9c 70 {
ccli8 20:759aab916d47 71 printf("Disable WDT timeout wake-up on this target\n\n");
ccli8 16:ed2c228cbc9c 72 }
ccli8 16:ed2c228cbc9c 73
ccli8 16:ed2c228cbc9c 74 #endif /* #if !defined(DEVICE_WATCHDOG) || !DEVICE_WATCHDOG */