STM32: fix us ticker set event timestamp

0xc0170 · 0xc0170 · commit 0591b2bcd457 · 2017-06-27T09:54:29.000+01:00
While we are handling new timestamp, disable ticker's interrupt.
diff --git a/targets/TARGET_STM/us_ticker_32b.c b/targets/TARGET_STM/us_ticker_32b.c
@@ -44,14 +44,16 @@ uint32_t us_ticker_read()
 void us_ticker_set_interrupt(timestamp_t timestamp)
 {
     TimMasterHandle.Instance = TIM_MST;
+    // disable IT while we are handling the correct timestamp
+    __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
     // Set new output compare value
     __HAL_TIM_SET_COMPARE(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);
-    // Enable IT
-    __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
     // Check if timestamp has already passed, and if so, set the event immediately
     if ((int32_t)(timestamp - TIM_MST->CNT) <= 0) {
         LL_TIM_GenerateEvent_CC1(TimMasterHandle.Instance);
     }
+    // Enable IT
+    __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
 }
 
 void us_ticker_disable_interrupt(void)

Original file line number	Diff line number	Diff line change
`@@ -44,14 +44,16 @@ uint32_t us_ticker_read()`
`44`	`44`	`void us_ticker_set_interrupt(timestamp_t timestamp)`
`45`	`45`	`{`
`46`	`46`	`TimMasterHandle.Instance = TIM_MST;`
	`47`	`+ // disable IT while we are handling the correct timestamp`
	`48`	`+ __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);`
`47`	`49`	`// Set new output compare value`
`48`	`50`	`__HAL_TIM_SET_COMPARE(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);`
`49`		`- // Enable IT`
`50`		`- __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);`
`51`	`51`	`// Check if timestamp has already passed, and if so, set the event immediately`
`52`	`52`	`if ((int32_t)(timestamp - TIM_MST->CNT) <= 0) {`
`53`	`53`	`LL_TIM_GenerateEvent_CC1(TimMasterHandle.Instance);`
`54`	`54`	`}`
	`55`	`+ // Enable IT`
	`56`	`+ __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);`
`55`	`57`	`}`
`56`	`58`
`57`	`59`	`void us_ticker_disable_interrupt(void)`