stm32/timer: Fix deadtime config on Advanced Timer peripherals.

pi-anl · dpgeorge · commit ff70bd1197e5 · 2023-09-12T17:12:16.000+10:00
Newer MCU series have additional fields in the struct which need to be
initialised to zero, eg Break2AFMode on WB55.

This work was funded by Planet Innovation.

Signed-off-by: Andrew Leech &lt;andrew.leech@planetinnovation.com.au&gt;
diff --git a/ports/stm32/timer.c b/ports/stm32/timer.c
@@ -507,7 +507,7 @@ STATIC mp_int_t compute_ticks_from_dtg(uint32_t dtg) {
 }
 
 STATIC void config_deadtime(pyb_timer_obj_t *self, mp_int_t ticks, mp_int_t brk) {
-    TIM_BreakDeadTimeConfigTypeDef deadTimeConfig;
+    TIM_BreakDeadTimeConfigTypeDef deadTimeConfig = {0};
     deadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;
     deadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;
     deadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;

Original file line number	Diff line number	Diff line change
`@@ -507,7 +507,7 @@ STATIC mp_int_t compute_ticks_from_dtg(uint32_t dtg) {`
`507`	`507`	`}`
`508`	`508`
`509`	`509`	`STATIC void config_deadtime(pyb_timer_obj_t *self, mp_int_t ticks, mp_int_t brk) {`
`510`		`- TIM_BreakDeadTimeConfigTypeDef deadTimeConfig;`
	`510`	`+ TIM_BreakDeadTimeConfigTypeDef deadTimeConfig = {0};`
`511`	`511`	`deadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;`
`512`	`512`	`deadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;`
`513`	`513`	`deadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;`