[stm32] remove 'count' variable in main()

61 files changed, 71 insertions, 136 deletions

diff --git a/bsp/stm32/stm32f072-st-nucleo/applications/main.c b/bsp/stm32/stm32f072-st-nucleo/applications/main.c
index 486ed61283..88489a380c 100644
--- a/bsp/stm32/stm32f072-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32f072-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED2_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f091-st-nucleo/applications/main.c b/bsp/stm32/stm32f091-st-nucleo/applications/main.c
index 9783d01e55..6debd35f0b 100644
--- a/bsp/stm32/stm32f091-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32f091-st-nucleo/applications/main.c
@@ -17,12 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
-
     /* set LED2 pin mode to output */
     rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED2_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f103-atk-nano/applications/main.c b/bsp/stm32/stm32f103-atk-nano/applications/main.c
index be493624c1..8b86d19f42 100644
--- a/bsp/stm32/stm32f103-atk-nano/applications/main.c
+++ b/bsp/stm32/stm32f103-atk-nano/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f103-atk-warshipv3/applications/main.c b/bsp/stm32/stm32f103-atk-warshipv3/applications/main.c
index 55c2b62023..21591b27c9 100644
--- a/bsp/stm32/stm32f103-atk-warshipv3/applications/main.c
+++ b/bsp/stm32/stm32f103-atk-warshipv3/applications/main.c
@@ -19,13 +19,12 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
     /* set LED1 pin mode to output */
     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_pin_write(LED1_PIN, PIN_HIGH);
diff --git a/bsp/stm32/stm32f103-blue-pill/applications/main.c b/bsp/stm32/stm32f103-blue-pill/applications/main.c
index 9be4cd59b1..49c8857458 100644
--- a/bsp/stm32/stm32f103-blue-pill/applications/main.c
+++ b/bsp/stm32/stm32f103-blue-pill/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f103-dofly-M3S/applications/main.c b/bsp/stm32/stm32f103-dofly-M3S/applications/main.c
index 0ec4930664..bec9c16a1c 100644
--- a/bsp/stm32/stm32f103-dofly-M3S/applications/main.c
+++ b/bsp/stm32/stm32f103-dofly-M3S/applications/main.c
@@ -18,11 +18,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f103-dofly-lyc8/applications/main.c b/bsp/stm32/stm32f103-dofly-lyc8/applications/main.c
index dc4e9cbb7e..7d6ee4fd8d 100644
--- a/bsp/stm32/stm32f103-dofly-lyc8/applications/main.c
+++ b/bsp/stm32/stm32f103-dofly-lyc8/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f103-fire-arbitrary/applications/main.c b/bsp/stm32/stm32f103-fire-arbitrary/applications/main.c
index 7ddaa5ee96..2f87d8ba9c 100644
--- a/bsp/stm32/stm32f103-fire-arbitrary/applications/main.c
+++ b/bsp/stm32/stm32f103-fire-arbitrary/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f103-gizwits-gokitv21/applications/main.c b/bsp/stm32/stm32f103-gizwits-gokitv21/applications/main.c
index bf9e60aae9..a14486afca 100644
--- a/bsp/stm32/stm32f103-gizwits-gokitv21/applications/main.c
+++ b/bsp/stm32/stm32f103-gizwits-gokitv21/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED4_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED4_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f103-hw100k-ibox/applications/main.c b/bsp/stm32/stm32f103-hw100k-ibox/applications/main.c
index 096b4df406..9b5ca4b3a1 100644
--- a/bsp/stm32/stm32f103-hw100k-ibox/applications/main.c
+++ b/bsp/stm32/stm32f103-hw100k-ibox/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f103-onenet-nbiot/applications/main.c b/bsp/stm32/stm32f103-onenet-nbiot/applications/main.c
index be493624c1..8b86d19f42 100644
--- a/bsp/stm32/stm32f103-onenet-nbiot/applications/main.c
+++ b/bsp/stm32/stm32f103-onenet-nbiot/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f103-yf-ufun/applications/main.c b/bsp/stm32/stm32f103-yf-ufun/applications/main.c
index ffe4955e19..451ca36099 100644
--- a/bsp/stm32/stm32f103-yf-ufun/applications/main.c
+++ b/bsp/stm32/stm32f103-yf-ufun/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED3_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED3_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f107-uc-eval/applications/main.c b/bsp/stm32/stm32f107-uc-eval/applications/main.c
index 9dca242b10..5ff9118958 100644
--- a/bsp/stm32/stm32f107-uc-eval/applications/main.c
+++ b/bsp/stm32/stm32f107-uc-eval/applications/main.c
@@ -18,11 +18,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED1 pin mode to output */
     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED1_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f401-st-nucleo/applications/main.c b/bsp/stm32/stm32f401-st-nucleo/applications/main.c
index 48009f1c78..c4fc239753 100644
--- a/bsp/stm32/stm32f401-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32f401-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f405-smdz-breadfruit/applications/main.c b/bsp/stm32/stm32f405-smdz-breadfruit/applications/main.c
index 47358c8a61..5fdff391d9 100644
--- a/bsp/stm32/stm32f405-smdz-breadfruit/applications/main.c
+++ b/bsp/stm32/stm32f405-smdz-breadfruit/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f407-atk-explorer/applications/main.c b/bsp/stm32/stm32f407-atk-explorer/applications/main.c
index 2fc9307caf..897ea4e4c9 100644
--- a/bsp/stm32/stm32f407-atk-explorer/applications/main.c
+++ b/bsp/stm32/stm32f407-atk-explorer/applications/main.c
@@ -18,11 +18,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f407-st-discovery/applications/main.c b/bsp/stm32/stm32f407-st-discovery/applications/main.c
index 2651a75073..ecc3464e69 100644
--- a/bsp/stm32/stm32f407-st-discovery/applications/main.c
+++ b/bsp/stm32/stm32f407-st-discovery/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f410-st-nucleo/applications/main.c b/bsp/stm32/stm32f410-st-nucleo/applications/main.c
index 05ab0e2504..796ed53fa1 100644
--- a/bsp/stm32/stm32f410-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32f410-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f411-atk-nano/applications/main.c b/bsp/stm32/stm32f411-atk-nano/applications/main.c
index df457f4760..c37fd1cdec 100644
--- a/bsp/stm32/stm32f411-atk-nano/applications/main.c
+++ b/bsp/stm32/stm32f411-atk-nano/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f411-st-nucleo/applications/main.c b/bsp/stm32/stm32f411-st-nucleo/applications/main.c
index 0e109663ae..95b3c77b36 100644
--- a/bsp/stm32/stm32f411-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32f411-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f411-weact-MiniF4/applications/main.c b/bsp/stm32/stm32f411-weact-MiniF4/applications/main.c
index be6a8af867..178bef6ba6 100644
--- a/bsp/stm32/stm32f411-weact-MiniF4/applications/main.c
+++ b/bsp/stm32/stm32f411-weact-MiniF4/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f412-st-nucleo/applications/main.c b/bsp/stm32/stm32f412-st-nucleo/applications/main.c
index 2cf35c5bc6..77417937d5 100644
--- a/bsp/stm32/stm32f412-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32f412-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f413-st-nucleo/applications/main.c b/bsp/stm32/stm32f413-st-nucleo/applications/main.c
index 799dc6797d..442502550c 100644
--- a/bsp/stm32/stm32f413-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32f413-st-nucleo/applications/main.c
@@ -23,11 +23,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED1 pin mode to output */
     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED1_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f427-robomaster-a/applications/main.c b/bsp/stm32/stm32f427-robomaster-a/applications/main.c
index 6cef3cbb34..1e82d7634e 100644
--- a/bsp/stm32/stm32f427-robomaster-a/applications/main.c
+++ b/bsp/stm32/stm32f427-robomaster-a/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f429-armfly-v6/applications/main.c b/bsp/stm32/stm32f429-armfly-v6/applications/main.c
index 21b7c14ec0..d964d95335 100644
--- a/bsp/stm32/stm32f429-armfly-v6/applications/main.c
+++ b/bsp/stm32/stm32f429-armfly-v6/applications/main.c
@@ -15,14 +15,12 @@
 
 int main(void)
 {
-    int count = 1;
-
     HC574_SetPin(LED1,0);
     HC574_SetPin(LED2,0);
     HC574_SetPin(LED3,0);
     HC574_SetPin(LED4,0);
 
-    while (count++)
+    while (1)
     {
         HC574_SetPin(LED1,1);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f429-atk-apollo/applications/main.c b/bsp/stm32/stm32f429-atk-apollo/applications/main.c
index 6d19a46edb..3a41980f00 100644
--- a/bsp/stm32/stm32f429-atk-apollo/applications/main.c
+++ b/bsp/stm32/stm32f429-atk-apollo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f429-fire-challenger/applications/main.c b/bsp/stm32/stm32f429-fire-challenger/applications/main.c
index 64e40b75c8..457ec11f24 100644
--- a/bsp/stm32/stm32f429-fire-challenger/applications/main.c
+++ b/bsp/stm32/stm32f429-fire-challenger/applications/main.c
@@ -18,11 +18,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f429-st-disco/applications/main.c b/bsp/stm32/stm32f429-st-disco/applications/main.c
index 992f2b5d74..f28b0c70cb 100644
--- a/bsp/stm32/stm32f429-st-disco/applications/main.c
+++ b/bsp/stm32/stm32f429-st-disco/applications/main.c
@@ -18,11 +18,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED1 pin mode to output */
     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED1_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f446-st-nucleo/applications/main.c b/bsp/stm32/stm32f446-st-nucleo/applications/main.c
index 897c6eec1c..cad622b154 100644
--- a/bsp/stm32/stm32f446-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32f446-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED2 pin mode to output */
     rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED2_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f469-st-disco/applications/main.c b/bsp/stm32/stm32f469-st-disco/applications/main.c
index 759572d376..03fc02fffc 100644
--- a/bsp/stm32/stm32f469-st-disco/applications/main.c
+++ b/bsp/stm32/stm32f469-st-disco/applications/main.c
@@ -18,11 +18,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED1 pin mode to output */
     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED1_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f746-st-disco/applications/main.c b/bsp/stm32/stm32f746-st-disco/applications/main.c
index 0024ce1c0a..11497a85c3 100644
--- a/bsp/stm32/stm32f746-st-disco/applications/main.c
+++ b/bsp/stm32/stm32f746-st-disco/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED1 pin mode to output */
     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED1_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f767-atk-apollo/applications/main.c b/bsp/stm32/stm32f767-atk-apollo/applications/main.c
index 71e6132ea2..7a7438d1b6 100644
--- a/bsp/stm32/stm32f767-atk-apollo/applications/main.c
+++ b/bsp/stm32/stm32f767-atk-apollo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f767-fire-challenger/applications/main.c b/bsp/stm32/stm32f767-fire-challenger/applications/main.c
index 4cf67f2e9e..524c000ac5 100644
--- a/bsp/stm32/stm32f767-fire-challenger/applications/main.c
+++ b/bsp/stm32/stm32f767-fire-challenger/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f767-st-nucleo/applications/main.c b/bsp/stm32/stm32f767-st-nucleo/applications/main.c
index a0967c1326..e7ae8dd7ed 100644
--- a/bsp/stm32/stm32f767-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32f767-st-nucleo/applications/main.c
@@ -18,11 +18,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED1 pin mode to output */
     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED1_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32f769-st-disco/applications/main.c b/bsp/stm32/stm32f769-st-disco/applications/main.c
index d61afe14c3..17a86ceb17 100644
--- a/bsp/stm32/stm32f769-st-disco/applications/main.c
+++ b/bsp/stm32/stm32f769-st-disco/applications/main.c
@@ -18,11 +18,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED1 pin mode to output */
     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED1_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32g070-st-nucleo/applications/main.c b/bsp/stm32/stm32g070-st-nucleo/applications/main.c
index 5f22fcae65..b205d8c186 100644
--- a/bsp/stm32/stm32g070-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32g070-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32g071-st-nucleo/applications/main.c b/bsp/stm32/stm32g071-st-nucleo/applications/main.c
index 5f22fcae65..b205d8c186 100644
--- a/bsp/stm32/stm32g071-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32g071-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32g431-st-nucleo/applications/main.c b/bsp/stm32/stm32g431-st-nucleo/applications/main.c
index fa4fd35a6e..6d2bf2da24 100644
--- a/bsp/stm32/stm32g431-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32g431-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED2 pin mode to output */
     rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED2_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32h743-atk-apollo/applications/main.c b/bsp/stm32/stm32h743-atk-apollo/applications/main.c
index 376d3c78ff..ef4f783aa6 100644
--- a/bsp/stm32/stm32h743-atk-apollo/applications/main.c
+++ b/bsp/stm32/stm32h743-atk-apollo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32h743-st-nucleo/applications/main.c b/bsp/stm32/stm32h743-st-nucleo/applications/main.c
index 9a8ac51bb5..062f6d352b 100644
--- a/bsp/stm32/stm32h743-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32h743-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32h747-st-discovery/applications/main.c b/bsp/stm32/stm32h747-st-discovery/applications/main.c
index 3904f7b3bc..e4bf0fdf5d 100644
--- a/bsp/stm32/stm32h747-st-discovery/applications/main.c
+++ b/bsp/stm32/stm32h747-st-discovery/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32h750-armfly-h7-tool/applications/main.c b/bsp/stm32/stm32h750-armfly-h7-tool/applications/main.c
index b19e338dc5..b30b930b71 100644
--- a/bsp/stm32/stm32h750-armfly-h7-tool/applications/main.c
+++ b/bsp/stm32/stm32h750-armfly-h7-tool/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32h750-artpi-h750/applications/main.c b/bsp/stm32/stm32h750-artpi-h750/applications/main.c
index 6ab088b624..58a1949abe 100644
--- a/bsp/stm32/stm32h750-artpi-h750/applications/main.c
+++ b/bsp/stm32/stm32h750-artpi-h750/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l010-st-nucleo/applications/main.c b/bsp/stm32/stm32l010-st-nucleo/applications/main.c
index 5f22fcae65..b205d8c186 100644
--- a/bsp/stm32/stm32l010-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l010-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l053-st-nucleo/applications/main.c b/bsp/stm32/stm32l053-st-nucleo/applications/main.c
index 5f22fcae65..b205d8c186 100644
--- a/bsp/stm32/stm32l053-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l053-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l412-st-nucleo/applications/main.c b/bsp/stm32/stm32l412-st-nucleo/applications/main.c
index b22a9d1ba3..1f4f98a18d 100644
--- a/bsp/stm32/stm32l412-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l412-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LD4 pin mode to output */
     rt_pin_mode(LD4_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LD4_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l431-BearPi/applications/main.c b/bsp/stm32/stm32l431-BearPi/applications/main.c
index 9222b842fc..9da51ac6b9 100644
--- a/bsp/stm32/stm32l431-BearPi/applications/main.c
+++ b/bsp/stm32/stm32l431-BearPi/applications/main.c
@@ -17,19 +17,17 @@
 
 int main(void)
 {
-  int count = 1;
+    rt_kprintf("---Welcome use BearPi---\n");
+    /* set LED pin mode to output */
+    rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-  rt_kprintf("---Welcome use BearPi---\n");
-  /* set LED pin mode to output */
-  rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
+    while (1)
+    {
+        rt_pin_write(LED0_PIN, PIN_HIGH);
+        rt_thread_mdelay(500);
+        rt_pin_write(LED0_PIN, PIN_LOW);
+        rt_thread_mdelay(500);
+    }
 
-  while (count++)
-  {
-    rt_pin_write(LED0_PIN, PIN_HIGH);
-    rt_thread_mdelay(500);
-    rt_pin_write(LED0_PIN, PIN_LOW);
-    rt_thread_mdelay(500);
-  }
-
-  return RT_EOK;
+    return RT_EOK;
 }
diff --git a/bsp/stm32/stm32l432-st-nucleo/applications/main.c b/bsp/stm32/stm32l432-st-nucleo/applications/main.c
index 336347c11e..a74219c21a 100644
--- a/bsp/stm32/stm32l432-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l432-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l433-st-nucleo/applications/main.c b/bsp/stm32/stm32l433-st-nucleo/applications/main.c
index 056bad6689..20e26de5e0 100644
--- a/bsp/stm32/stm32l433-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l433-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l452-st-nucleo/applications/main.c b/bsp/stm32/stm32l452-st-nucleo/applications/main.c
index fa4fd35a6e..6d2bf2da24 100644
--- a/bsp/stm32/stm32l452-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l452-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED2 pin mode to output */
     rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED2_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l475-atk-pandora/applications/main.c b/bsp/stm32/stm32l475-atk-pandora/applications/main.c
index dfad8c68c1..a0db7f7a23 100644
--- a/bsp/stm32/stm32l475-atk-pandora/applications/main.c
+++ b/bsp/stm32/stm32l475-atk-pandora/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l475-st-discovery/applications/main.c b/bsp/stm32/stm32l475-st-discovery/applications/main.c
index bddb8abe63..419748d994 100644
--- a/bsp/stm32/stm32l475-st-discovery/applications/main.c
+++ b/bsp/stm32/stm32l475-st-discovery/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l476-st-nucleo/applications/main.c b/bsp/stm32/stm32l476-st-nucleo/applications/main.c
index b22a8b8e8d..db859c5b0a 100644
--- a/bsp/stm32/stm32l476-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l476-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l496-ali-developer/applications/main.c b/bsp/stm32/stm32l496-ali-developer/applications/main.c
index 86d1cf72dd..7837b32e1f 100644
--- a/bsp/stm32/stm32l496-ali-developer/applications/main.c
+++ b/bsp/stm32/stm32l496-ali-developer/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l496-st-nucleo/applications/main.c b/bsp/stm32/stm32l496-st-nucleo/applications/main.c
index efe91875b9..fc5173819f 100644
--- a/bsp/stm32/stm32l496-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l496-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED2 pin mode to output */
     rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED2_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l4r5-st-nucleo/applications/main.c b/bsp/stm32/stm32l4r5-st-nucleo/applications/main.c
index 2dbb2b2c81..c916e2e682 100644
--- a/bsp/stm32/stm32l4r5-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l4r5-st-nucleo/applications/main.c
@@ -23,11 +23,9 @@
 
 int main(void)
 {
-    int count = 1;
-
     rt_pin_mode(LED_RUN_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED_RUN_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32l4r9-st-eval/applications/main.c b/bsp/stm32/stm32l4r9-st-eval/applications/main.c
index c53f70fb97..431af5fcdf 100644
--- a/bsp/stm32/stm32l4r9-st-eval/applications/main.c
+++ b/bsp/stm32/stm32l4r9-st-eval/applications/main.c
@@ -18,11 +18,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED0_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32mp157a-st-discovery/applications/main.c b/bsp/stm32/stm32mp157a-st-discovery/applications/main.c
index 85d9d3ba89..39d87173fc 100644
--- a/bsp/stm32/stm32mp157a-st-discovery/applications/main.c
+++ b/bsp/stm32/stm32mp157a-st-discovery/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LD7 pin mode to output */
     rt_pin_mode(LED7_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED7_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32mp157a-st-ev1/applications/main.c b/bsp/stm32/stm32mp157a-st-ev1/applications/main.c
index 6e70b83927..5c14a7f8a4 100644
--- a/bsp/stm32/stm32mp157a-st-ev1/applications/main.c
+++ b/bsp/stm32/stm32mp157a-st-ev1/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LD8 pin mode to output */
     rt_pin_mode(LED4_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED4_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32wb55-st-nucleo/applications/main.c b/bsp/stm32/stm32wb55-st-nucleo/applications/main.c
index f6e244c12c..cdc8b312f4 100644
--- a/bsp/stm32/stm32wb55-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32wb55-st-nucleo/applications/main.c
@@ -17,11 +17,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED0 pin mode to output */
     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED1_PIN, PIN_HIGH);
         rt_thread_mdelay(500);
diff --git a/bsp/stm32/stm32wl55-st-nucleo/applications/main.c b/bsp/stm32/stm32wl55-st-nucleo/applications/main.c
index 57385ad74c..9b54d7b2ec 100644
--- a/bsp/stm32/stm32wl55-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32wl55-st-nucleo/applications/main.c
@@ -19,11 +19,10 @@
 
 int main(void)
 {
-    int count = 1;
     /* set LED_BLUE pin mode to output */
     rt_pin_mode(LED_BLUE_PIN, PIN_MODE_OUTPUT);
 
-    while (count++)
+    while (1)
     {
         rt_pin_write(LED_BLUE_PIN, PIN_HIGH);
         rt_thread_mdelay(500);