diff --git a/configs/mikroe-stm32f4/src/up_touchscreen.c b/configs/mikroe-stm32f4/src/up_touchscreen.c
index 095168c89e0..52edd65de55 100644
--- a/configs/mikroe-stm32f4/src/up_touchscreen.c
+++ b/configs/mikroe-stm32f4/src/up_touchscreen.c
@@ -156,11 +156,11 @@
 /* Delays ***************************************************************************/
 /* All values will be increased by one system timer tick (probably 10MS). */
 
-#define TC_PENUP_POLL_TICKS   (70 / MSEC_PER_TICK) /* IDLE polling rate: 100 MSec */
-#define TC_PENDOWN_POLL_TICKS (40 / MSEC_PER_TICK) /* Active polling rate: 60 MSec */
-#define TC_DEBOUNCE_TICKS     (16 / MSEC_PER_TICK) /* Delay before re-sampling: 30 MSec */
-#define TC_SAMPLE_TICKS       (4 / MSEC_PER_TICK)  /* Delay for A/D sampling: 4 MSec */
-#define TC_SETTLE_TICKS       (10 / MSEC_PER_TICK) /* Delay for A/D settling: 4 MSec */
+#define TC_PENUP_POLL_TICKS   MSEC2TICK(70)  /* IDLE polling rate: 70 MSec */
+#define TC_PENDOWN_POLL_TICKS MSEC2TICK(40)  /* Active polling rate: 40 MSec */
+#define TC_DEBOUNCE_TICKS     MSEC2TICK(16)  /* Delay before re-sampling: 16 MSec */
+#define TC_SAMPLE_TICKS       MSEC2TICK(4)   /* Delay for A/D sampling: 4 MSec */
+#define TC_SETTLE_TICKS       MSECT2TICK(10) /* Delay for A/D settling: 10 MSec */
 #define TC_RESAMPLE_TICKS     TC_SAMPLE_TICKS
 
 /************************************************************************************
diff --git a/configs/pic32mx7mmb/src/up_touchscreen.c b/configs/pic32mx7mmb/src/up_touchscreen.c
index d29111f6713..99b35151c61 100644
--- a/configs/pic32mx7mmb/src/up_touchscreen.c
+++ b/configs/pic32mx7mmb/src/up_touchscreen.c
@@ -142,10 +142,10 @@
 /* Delays ***************************************************************************/
 /* All values will be increased by one system timer tick (probably 10MS). */
 
-#define TC_PENUP_POLL_TICKS   (100 / MSEC_PER_TICK) /* IDLE polling rate: 100 MSec */
-#define TC_PENDOWN_POLL_TICKS (60 / MSEC_PER_TICK)  /* Active polling rate: 60 MSec */
-#define TC_DEBOUNCE_TICKS     (30 / MSEC_PER_TICK)  /* Delay before re-sampling: 30 MSec */
-#define TC_SAMPLE_TICKS       (4 / MSEC_PER_TICK)   /* Delay for A/D sampling: 4 MSec */
+#define TC_PENUP_POLL_TICKS   MSEC2TICK(100) /* IDLE polling rate: 100 MSec */
+#define TC_PENDOWN_POLL_TICKS MSEC2TICK(60)  /* Active polling rate: 60 MSec */
+#define TC_DEBOUNCE_TICKS     MSEC2TICK(30)  /* Delay before re-sampling: 30 MSec */
+#define TC_SAMPLE_TICKS       MSEC2TICK(4)   /* Delay for A/D sampling: 4 MSec */
 #define TC_RESAMPLE_TICKS     TC_SAMPLE_TICKS
 
 /************************************************************************************
diff --git a/configs/sam4s-xplained-pro/src/sam_tc.c b/configs/sam4s-xplained-pro/src/sam_tc.c
index 4012bb80d4f..bad80cc3e4e 100755
--- a/configs/sam4s-xplained-pro/src/sam_tc.c
+++ b/configs/sam4s-xplained-pro/src/sam_tc.c
@@ -218,8 +218,8 @@ int sam_timerinitialize(void)
 
   /* Set the timeout */
 
-  tcvdbg("Interval = %d us.\n",  (unsigned long)MSEC_PER_TICK * 1000);
-  ret = ioctl(fd, TCIOC_SETTIMEOUT, (unsigned long)MSEC_PER_TICK * 1000);
+  tcvdbg("Interval = %d us.\n",  (unsigned long)USEC_PER_TICK);
+  ret = ioctl(fd, TCIOC_SETTIMEOUT, (unsigned long)USEC_PER_TICK);
   if (ret < 0)
     {
       tcdbg("ioctl(TCIOC_SETTIMEOUT) failed: %d\n", errno);