diff --git a/targets/TARGET_STM/can_api.c b/targets/TARGET_STM/can_api.c
index c9888dc59c1..4ee8b9e99d8 100644
--- a/targets/TARGET_STM/can_api.c
+++ b/targets/TARGET_STM/can_api.c
@@ -155,19 +155,13 @@ static void _can_init_freq_direct(can_t *obj, const can_pinmap_t *pinmap, int hz
     can_internal_init(obj);
 }
 
-#if STATIC_PINMAP_READY
-#define CAN_INIT_DIRECT can_init_direct
 void can_init_direct(can_t *obj, const can_pinmap_t *pinmap)
-#else
-#define CAN_INIT_DIRECT _can_init_direct
-static void _can_init_direct(can_t *obj, const can_pinmap_t *pinmap)
-#endif
 {
     /* default frequency is 100 kHz */
     CAN_INIT_FREQ_DIRECT(obj, pinmap, 100000);
 }
 
-void can_init(can_t *obj, PinName rd, PinName td)
+void can_init_freq(can_t *obj, PinName rd, PinName td, int hz)
 {
     CANName can_rd = (CANName)pinmap_peripheral(rd, PinMap_CAN_RD);
     CANName can_td = (CANName)pinmap_peripheral(td, PinMap_CAN_TD);
@@ -178,27 +172,14 @@ void can_init(can_t *obj, PinName rd, PinName td)
 
     const can_pinmap_t static_pinmap = {peripheral, rd, function_rd, td, function_td};
 
-    /* default frequency is 100 kHz */
-    CAN_INIT_DIRECT(obj, &static_pinmap);
+    CAN_INIT_FREQ_DIRECT(obj, &static_pinmap, hz);
 }
 
-
-
-void can_init_freq(can_t *obj, PinName rd, PinName td, int hz)
+void can_init(can_t *obj, PinName rd, PinName td)
 {
-    CANName can_rd = (CANName)pinmap_peripheral(rd, PinMap_CAN_RD);
-    CANName can_td = (CANName)pinmap_peripheral(td, PinMap_CAN_TD);
-    int peripheral = (int) pinmap_merge(can_rd, can_td);
-
-    int function_rd = (int)pinmap_find_function(rd, PinMap_CAN_RD);
-    int function_td = (int)pinmap_find_function(td, PinMap_CAN_TD);
-
-    const can_pinmap_t static_pinmap = {peripheral, rd, function_rd, td, function_td};
-
-    CAN_INIT_FREQ_DIRECT(obj, &static_pinmap, 100000);
+    can_init_freq(obj, rd, td, 100000);
 }
 
-
 void can_irq_init(can_t *obj, can_irq_handler handler, uint32_t id)
 {
     irq_handler = handler;
@@ -654,19 +635,13 @@ static void _can_init_freq_direct(can_t *obj, const can_pinmap_t *pinmap, int hz
     can_filter(obj, 0, 0, CANStandard, filter_number);
 }
 
-#if STATIC_PINMAP_READY
-#define CAN_INIT_DIRECT can_init_direct
 void can_init_direct(can_t *obj, const can_pinmap_t *pinmap)
-#else
-#define CAN_INIT_DIRECT _can_init_direct
-static void _can_init_direct(can_t *obj, const can_pinmap_t *pinmap)
-#endif
 {
     /* default frequency is 100 kHz */
     CAN_INIT_FREQ_DIRECT(obj, pinmap, 100000);
 }
 
-void can_init(can_t *obj, PinName rd, PinName td)
+void can_init_freq(can_t *obj, PinName rd, PinName td, int hz)
 {
     CANName can_rd = (CANName)pinmap_peripheral(rd, PinMap_CAN_RD);
     CANName can_td = (CANName)pinmap_peripheral(td, PinMap_CAN_TD);
@@ -677,22 +652,12 @@ void can_init(can_t *obj, PinName rd, PinName td)
 
     const can_pinmap_t static_pinmap = {peripheral, rd, function_rd, td, function_td};
 
-    /* default frequency is 100 kHz */
-    CAN_INIT_DIRECT(obj, &static_pinmap);
+    CAN_INIT_FREQ_DIRECT(obj, &static_pinmap, hz);
 }
 
-void can_init_freq(can_t *obj, PinName rd, PinName td, int hz)
+void can_init(can_t *obj, PinName rd, PinName td)
 {
-    CANName can_rd = (CANName)pinmap_peripheral(rd, PinMap_CAN_RD);
-    CANName can_td = (CANName)pinmap_peripheral(td, PinMap_CAN_TD);
-    int peripheral = (int) pinmap_merge(can_rd, can_td);
-
-    int function_rd = (int)pinmap_find_function(rd, PinMap_CAN_RD);
-    int function_td = (int)pinmap_find_function(td, PinMap_CAN_TD);
-
-    const can_pinmap_t static_pinmap = {peripheral, rd, function_rd, td, function_td};
-
-    CAN_INIT_FREQ_DIRECT(obj, &static_pinmap, 100000);
+    can_init_freq(obj, rd, td, 100000);
 }
 
 void can_irq_init(can_t *obj, can_irq_handler handler, uint32_t id)