diff --git a/src/main.c b/src/main.c
--- a/src/main.c
+++ b/src/main.c
@@ -19,11 +19,11 @@ uint8_t tx_buffer[255];
 
 int main(void)
 {
-
     HAL_Init();
 
     sysclk_init();
-    MX_GPIO_Init();
+    gpio_init();
+    led_blink(5);
     MX_DMA_Init();
     MX_ADC_Init();
     i2c_init();
@@ -34,7 +34,6 @@ int main(void)
 
 //    MX_USART1_UART_Init();
 
-
     //jtencode_init();
     //gps_init();
     si5351_init(i2c_get(), SI5351_CRYSTAL_LOAD_8PF, 0);
@@ -103,6 +102,5 @@ void sysclk_init(void)
 
     // SysTick_IRQn interrupt configuration 
     HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
-
 }