diff --git a/platform/embedded/btstack_em9304_spi_embedded.c b/platform/embedded/btstack_em9304_spi_embedded.c
index 85318bb44..4317e68df 100644
--- a/platform/embedded/btstack_em9304_spi_embedded.c
+++ b/platform/embedded/btstack_em9304_spi_embedded.c
@@ -43,7 +43,7 @@
  */
 
 #include "btstack_debug.h"
-#include "btstack_run_loop_embedded.h"
+#include "btstack_run_loop.h"
 #include "btstack_em9304_spi.h"
 #include "hal_em9304_spi.h"
 
@@ -58,12 +58,12 @@ static int btstack_em9304_spi_embedded_notify_transfer_done;
 
 static void btstack_em9304_spi_embedded_ready(void){
     btstack_em9304_spi_embedded_notify_ready = 1;
-    btstack_run_loop_embedded_trigger();
+    btstack_run_loop_poll_data_sources_from_irq();
 }
 
 static void btstack_em9304_spi_transfer_done(void){
     btstack_em9304_spi_embedded_notify_transfer_done = 1;
-    btstack_run_loop_embedded_trigger();
+    btstack_run_loop_poll_data_sources_from_irq();
 }
 
 static void btstack_em9304_spi_embedded_process(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type) {
diff --git a/platform/embedded/btstack_stdin_embedded.c b/platform/embedded/btstack_stdin_embedded.c
index 8f7c6abac..3467ae36c 100644
--- a/platform/embedded/btstack_stdin_embedded.c
+++ b/platform/embedded/btstack_stdin_embedded.c
@@ -61,13 +61,15 @@ static btstack_data_source_t stdin_data_source;
 
 #ifndef ENABLE_SEGGER_RTT
 
+// callback from hal_stdin is from irq context
+
 volatile int stdin_character_received;
 volatile char stdin_character;
 
 static void btstack_stdin_handler(char c){
 	stdin_character = c;
 	stdin_character_received = 1;
-	btstack_run_loop_embedded_trigger();
+	btstack_run_loop_poll_data_sources_from_irq();
 }
 
 static void btstack_stdin_process(struct btstack_data_source *ds, btstack_data_source_callback_type_t callback_type){
diff --git a/platform/embedded/btstack_uart_block_embedded.c b/platform/embedded/btstack_uart_block_embedded.c
index 0ba3188ae..5b836676e 100644
--- a/platform/embedded/btstack_uart_block_embedded.c
+++ b/platform/embedded/btstack_uart_block_embedded.c
@@ -40,13 +40,13 @@
 /*
  *  btstack_uart_block_embedded.c
  *
- *  Common code to access UART via asynchronous block read/write commands on top of hal_uart_dma.h
- *
+ *  Adapter to IRQ-driven hal_uart_dma.h with Embedded BTstack Run Loop
+ *  Callbacks are executed on main thread via data source and btstack_run_loop_poll_data_sources_from_irq
  */
 
 #include "btstack_debug.h"
 #include "btstack_uart_block.h"
-#include "btstack_run_loop_embedded.h"
+#include "btstack_run_loop.h"
 #include "hal_uart_dma.h"
 
 // NULL
@@ -70,17 +70,17 @@ static void (*wakeup_handler)(void);
 
 static void btstack_uart_block_received(void){
     receive_complete = 1;
-    btstack_run_loop_embedded_trigger();
+    btstack_run_loop_poll_data_sources_from_irq();
 }
 
 static void btstack_uart_block_sent(void){
     send_complete = 1;
-    btstack_run_loop_embedded_trigger();
+    btstack_run_loop_poll_data_sources_from_irq();
 }
 
 static void btstack_uart_cts_pulse(void){
     wakeup_event = 1;
-    btstack_run_loop_embedded_trigger();
+    btstack_run_loop_poll_data_sources_from_irq();
 }
 
 static int btstack_uart_embedded_init(const btstack_uart_config_t * config){
diff --git a/port/max32630-fthr/src/btstack_port.c b/port/max32630-fthr/src/btstack_port.c
index 55e3b70eb..95c4e2e5a 100644
--- a/port/max32630-fthr/src/btstack_port.c
+++ b/port/max32630-fthr/src/btstack_port.c
@@ -363,7 +363,7 @@ static void stdin_process(struct btstack_data_source *ds, btstack_data_source_ca
 
 static void btstack_stdin_handler(char c){
     stdin_character_received = 1;
-    btstack_run_loop_embedded_trigger();
+    btstack_run_loop_poll_data_sources_from_irq();
     printf("Received: %c\n", c);
 }
 
diff --git a/port/stm32-l073rz-nucleo-em9304/port/port.c b/port/stm32-l073rz-nucleo-em9304/port/port.c
index 5c1dca4b8..a1e49c746 100644
--- a/port/stm32-l073rz-nucleo-em9304/port/port.c
+++ b/port/stm32-l073rz-nucleo-em9304/port/port.c
@@ -204,7 +204,7 @@ static void (*rx_done_handler)(void) = &dummy_handler;
 static void (*tx_done_handler)(void) = &dummy_handler;
 
 static inline void hal_spi_em9304_trigger_run_loop(void){
-    btstack_run_loop_embedded_trigger();
+    btstack_run_loop_poll_data_sources_from_irq();
 }
 
 static inline int hal_spi_em9304_rdy(void){