fall back to periodic tic

timers aren't as good as we'd like. The VT in charge of them causes mayhem on double-buffered timers like CT16, resulting in random timekeeping

Author: dexter93

platforms/chibios/boards/SN_SN32F240B/configs/chconf.h

@@ -21,9 +21,9 @@
 
 #pragma once
 
-#define CH_CFG_ST_RESOLUTION 16
+#define CH_CFG_ST_FREQUENCY 10000
 
-#define CH_CFG_ST_FREQUENCY 187500
+#define CH_CFG_ST_TIMEDELTA 0
 
 #define CH_CFG_USE_TIMESTAMP FALSE
 

platforms/chibios/boards/SN_SN32F260/configs/chconf.h

@@ -21,9 +21,9 @@
 
 #pragma once
 
-#define CH_CFG_ST_RESOLUTION 16
+#define CH_CFG_ST_FREQUENCY 10000
 
-#define CH_CFG_ST_FREQUENCY 187500
+#define CH_CFG_ST_TIMEDELTA 0
 
 #define CH_CFG_OPTIMIZE_SPEED FALSE