diff --git a/.github/workflows/action.yml b/.github/workflows/action.yml
index 514e13cfe6..6ddc2bd928 100644
--- a/.github/workflows/action.yml
+++ b/.github/workflows/action.yml
@@ -213,6 +213,8 @@ jobs:
          - {RTT_BSP: "at32/at32f407-start", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "at32/at32f413-start", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "at32/at32f415-start", RTT_TOOL_CHAIN: "sourcery-arm"}
+         - {RTT_BSP: "at32/at32f421-start", RTT_TOOL_CHAIN: "sourcery-arm"}
+         - {RTT_BSP: "at32/at32f425-start", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "at32/at32f435-start", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "at32/at32f437-start", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "smartfusion2", RTT_TOOL_CHAIN: "sourcery-arm"}
diff --git a/bsp/at32/libraries/AT32F421_Firmware_Library/drivers/src/at32f421_tmr.c b/bsp/at32/libraries/AT32F421_Firmware_Library/drivers/src/at32f421_tmr.c
index c794e03879..fecab82075 100644
--- a/bsp/at32/libraries/AT32F421_Firmware_Library/drivers/src/at32f421_tmr.c
+++ b/bsp/at32/libraries/AT32F421_Firmware_Library/drivers/src/at32f421_tmr.c
@@ -770,7 +770,7 @@ void tmr_input_channel_init(tmr_type *tmr_x, tmr_input_config_type *input_struct
   switch(channel)
   {
     case TMR_SELECT_CHANNEL_1:
-	  tmr_x->cctrl_bit.c1en       = FALSE;
+      tmr_x->cctrl_bit.c1en       = FALSE;
       tmr_x->cctrl_bit.c1p        = (uint32_t)input_struct->input_polarity_select;
       tmr_x->cctrl_bit.c1cp       = (input_struct->input_polarity_select & 0x2) >> 1;
       tmr_x->cm1_input_bit.c1c    = input_struct->input_mapped_select;
@@ -780,7 +780,7 @@ void tmr_input_channel_init(tmr_type *tmr_x, tmr_input_config_type *input_struct
       break;
 
     case TMR_SELECT_CHANNEL_2:
-	  tmr_x->cctrl_bit.c2en       = FALSE;
+      tmr_x->cctrl_bit.c2en       = FALSE;
       tmr_x->cctrl_bit.c2p        = (uint32_t)input_struct->input_polarity_select;
       tmr_x->cctrl_bit.c2cp       = (input_struct->input_polarity_select & 0x2) >> 1;
       tmr_x->cm1_input_bit.c2c    = input_struct->input_mapped_select;
@@ -790,7 +790,7 @@ void tmr_input_channel_init(tmr_type *tmr_x, tmr_input_config_type *input_struct
       break;
 
     case TMR_SELECT_CHANNEL_3:
-	  tmr_x->cctrl_bit.c3en       = FALSE;
+      tmr_x->cctrl_bit.c3en       = FALSE;
       tmr_x->cctrl_bit.c3p        = (uint32_t)input_struct->input_polarity_select;
       tmr_x->cctrl_bit.c3cp       = (input_struct->input_polarity_select & 0x2) >> 1;
       tmr_x->cm2_input_bit.c3c    = input_struct->input_mapped_select;
@@ -800,7 +800,7 @@ void tmr_input_channel_init(tmr_type *tmr_x, tmr_input_config_type *input_struct
       break;
 
     case TMR_SELECT_CHANNEL_4:
-	  tmr_x->cctrl_bit.c4en       = FALSE;
+      tmr_x->cctrl_bit.c4en       = FALSE;
       tmr_x->cctrl_bit.c4p        = (uint32_t)input_struct->input_polarity_select;
       tmr_x->cm2_input_bit.c4c    = input_struct->input_mapped_select;
       tmr_x->cm2_input_bit.c4df   = input_struct->input_filter_value;
diff --git a/bsp/at32/libraries/AT32F425_Firmware_Library/drivers/inc/at32f425_crm.h b/bsp/at32/libraries/AT32F425_Firmware_Library/drivers/inc/at32f425_crm.h
index 89686a5f9b..b5fc424abb 100644
--- a/bsp/at32/libraries/AT32F425_Firmware_Library/drivers/inc/at32f425_crm.h
+++ b/bsp/at32/libraries/AT32F425_Firmware_Library/drivers/inc/at32f425_crm.h
@@ -143,7 +143,7 @@ typedef enum
 typedef enum
 {
   /* ahb periph */
-	CRM_OTGFS1_PERIPH_RESET                = MAKE_VALUE(0x28, 12), /*!< otgfs1 periph reset */
+  CRM_OTGFS1_PERIPH_RESET                = MAKE_VALUE(0x28, 12), /*!< otgfs1 periph reset */
   CRM_GPIOA_PERIPH_RESET                 = MAKE_VALUE(0x28, 17), /*!< gpioa periph reset */
   CRM_GPIOB_PERIPH_RESET                 = MAKE_VALUE(0x28, 18), /*!< gpiob periph reset */
   CRM_GPIOC_PERIPH_RESET                 = MAKE_VALUE(0x28, 19), /*!< gpioc periph reset */
diff --git a/bsp/at32/libraries/AT32F425_Firmware_Library/drivers/src/at32f425_tmr.c b/bsp/at32/libraries/AT32F425_Firmware_Library/drivers/src/at32f425_tmr.c
index 952633f764..471ecdf035 100644
--- a/bsp/at32/libraries/AT32F425_Firmware_Library/drivers/src/at32f425_tmr.c
+++ b/bsp/at32/libraries/AT32F425_Firmware_Library/drivers/src/at32f425_tmr.c
@@ -775,7 +775,7 @@ void tmr_input_channel_init(tmr_type *tmr_x, tmr_input_config_type *input_struct
   switch(channel)
   {
     case TMR_SELECT_CHANNEL_1:
-	  tmr_x->cctrl_bit.c1en       = FALSE;
+      tmr_x->cctrl_bit.c1en       = FALSE;
       tmr_x->cctrl_bit.c1p        = (uint32_t)input_struct->input_polarity_select;
       tmr_x->cctrl_bit.c1cp       = (input_struct->input_polarity_select & 0x2) >> 1;
       tmr_x->cm1_input_bit.c1c    = input_struct->input_mapped_select;
@@ -785,7 +785,7 @@ void tmr_input_channel_init(tmr_type *tmr_x, tmr_input_config_type *input_struct
       break;
 
     case TMR_SELECT_CHANNEL_2:
-	  tmr_x->cctrl_bit.c2en       = FALSE;
+      tmr_x->cctrl_bit.c2en       = FALSE;
       tmr_x->cctrl_bit.c2p        = (uint32_t)input_struct->input_polarity_select;
       tmr_x->cctrl_bit.c2cp       = (input_struct->input_polarity_select & 0x2) >> 1;
       tmr_x->cm1_input_bit.c2c    = input_struct->input_mapped_select;
@@ -795,7 +795,7 @@ void tmr_input_channel_init(tmr_type *tmr_x, tmr_input_config_type *input_struct
       break;
 
     case TMR_SELECT_CHANNEL_3:
-	  tmr_x->cctrl_bit.c3en       = FALSE;
+      tmr_x->cctrl_bit.c3en       = FALSE;
       tmr_x->cctrl_bit.c3p        = (uint32_t)input_struct->input_polarity_select;
       tmr_x->cctrl_bit.c3cp       = (input_struct->input_polarity_select & 0x2) >> 1;
       tmr_x->cm2_input_bit.c3c    = input_struct->input_mapped_select;
@@ -805,7 +805,7 @@ void tmr_input_channel_init(tmr_type *tmr_x, tmr_input_config_type *input_struct
       break;
 
     case TMR_SELECT_CHANNEL_4:
-	  tmr_x->cctrl_bit.c4en       = FALSE;
+      tmr_x->cctrl_bit.c4en       = FALSE;
       tmr_x->cctrl_bit.c4p        = (uint32_t)input_struct->input_polarity_select;
       tmr_x->cm2_input_bit.c4c    = input_struct->input_mapped_select;
       tmr_x->cm2_input_bit.c4df   = input_struct->input_filter_value;