diff --git a/demos/STM32/RT-STM32H743I-NUCLEO144/cfg/mcuconf.h b/demos/STM32/RT-STM32H743I-NUCLEO144/cfg/mcuconf.h
index d400fd083..1fb9f89b3 100644
--- a/demos/STM32/RT-STM32H743I-NUCLEO144/cfg/mcuconf.h
+++ b/demos/STM32/RT-STM32H743I-NUCLEO144/cfg/mcuconf.h
@@ -183,8 +183,8 @@
 
 #define STM32_IRQ_QUADSPI1_PRIORITY         10
 
-#define STM32_IRQ_SDMMC1_PRIORITY           8
-#define STM32_IRQ_SDMMC2_PRIORITY           8
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+#define STM32_IRQ_SDMMC2_PRIORITY           9
 
 #define STM32_IRQ_TIM1_UP_PRIORITY          7
 #define STM32_IRQ_TIM1_CC_PRIORITY          7
diff --git a/demos/STM32/RT-STM32L4R5ZI-NUCLEO144/cfg/mcuconf.h b/demos/STM32/RT-STM32L4R5ZI-NUCLEO144/cfg/mcuconf.h
index 2dae81f98..97ece82bc 100644
--- a/demos/STM32/RT-STM32L4R5ZI-NUCLEO144/cfg/mcuconf.h
+++ b/demos/STM32/RT-STM32L4R5ZI-NUCLEO144/cfg/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY/cfg/mcuconf.h b/demos/STM32/RT-STM32L4R9-DISCOVERY/cfg/mcuconf.h
index 1da66fa96..bdad0744e 100644
--- a/demos/STM32/RT-STM32L4R9-DISCOVERY/cfg/mcuconf.h
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY/cfg/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/os/hal/ports/STM32/STM32L4xx+/stm32_isr.c b/os/hal/ports/STM32/STM32L4xx+/stm32_isr.c
index 8800b0200..e36ca8db0 100644
--- a/os/hal/ports/STM32/STM32L4xx+/stm32_isr.c
+++ b/os/hal/ports/STM32/STM32L4xx+/stm32_isr.c
@@ -64,6 +64,8 @@
 #include "stm32_exti20.inc"
 #include "stm32_exti21_22.inc"
 
+#include "stm32_sdmmc1.inc"
+
 #include "stm32_usart1.inc"
 #include "stm32_usart2.inc"
 #include "stm32_usart3.inc"
@@ -103,6 +105,8 @@ void irqInit(void) {
   exti19_irq_init();
   exti21_22_irq_init();
 
+  sdmmc1_irq_init();
+
   tim1_tim15_tim16_tim17_irq_init();
   tim2_irq_init();
   tim3_irq_init();
@@ -139,6 +143,8 @@ void irqDeinit(void) {
   exti19_irq_deinit();
   exti21_22_irq_deinit();
 
+  sdmmc1_irq_deinit();
+
   tim1_tim15_tim16_tim17_irq_deinit();
   tim2_irq_deinit();
   tim3_irq_deinit();
diff --git a/testhal/STM32/multi/ADC/cfg/stm32h743_nucleo144/mcuconf.h b/testhal/STM32/multi/ADC/cfg/stm32h743_nucleo144/mcuconf.h
index ed2beaadb..e35eb01bd 100644
--- a/testhal/STM32/multi/ADC/cfg/stm32h743_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/ADC/cfg/stm32h743_nucleo144/mcuconf.h
@@ -183,8 +183,8 @@
 
 #define STM32_IRQ_QUADSPI1_PRIORITY         10
 
-#define STM32_IRQ_SDMMC1_PRIORITY           8
-#define STM32_IRQ_SDMMC2_PRIORITY           8
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+#define STM32_IRQ_SDMMC2_PRIORITY           9
 
 #define STM32_IRQ_TIM1_UP_PRIORITY          7
 #define STM32_IRQ_TIM1_CC_PRIORITY          7
diff --git a/testhal/STM32/multi/ADC/cfg/stm32l4r5zi_nucleo144/mcuconf.h b/testhal/STM32/multi/ADC/cfg/stm32l4r5zi_nucleo144/mcuconf.h
index 442ad9d33..73787927f 100644
--- a/testhal/STM32/multi/ADC/cfg/stm32l4r5zi_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/ADC/cfg/stm32l4r5zi_nucleo144/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/testhal/STM32/multi/DAC/cfg/stm32h743_nucleo144/mcuconf.h b/testhal/STM32/multi/DAC/cfg/stm32h743_nucleo144/mcuconf.h
index 4c858fefb..64df3f71c 100644
--- a/testhal/STM32/multi/DAC/cfg/stm32h743_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/DAC/cfg/stm32h743_nucleo144/mcuconf.h
@@ -183,8 +183,8 @@
 
 #define STM32_IRQ_QUADSPI1_PRIORITY         10
 
-#define STM32_IRQ_SDMMC1_PRIORITY           8
-#define STM32_IRQ_SDMMC2_PRIORITY           8
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+#define STM32_IRQ_SDMMC2_PRIORITY           9
 
 #define STM32_IRQ_TIM1_UP_PRIORITY          7
 #define STM32_IRQ_TIM1_CC_PRIORITY          7
diff --git a/testhal/STM32/multi/DAC/cfg/stm32l4r5zi_nucleo144/mcuconf.h b/testhal/STM32/multi/DAC/cfg/stm32l4r5zi_nucleo144/mcuconf.h
index b0267b8b5..5ddb1ee24 100644
--- a/testhal/STM32/multi/DAC/cfg/stm32l4r5zi_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/DAC/cfg/stm32l4r5zi_nucleo144/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/testhal/STM32/multi/RTC/cfg/stm32l4r5_nucleo144/mcuconf.h b/testhal/STM32/multi/RTC/cfg/stm32l4r5_nucleo144/mcuconf.h
index 2dae81f98..97ece82bc 100644
--- a/testhal/STM32/multi/RTC/cfg/stm32l4r5_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/RTC/cfg/stm32l4r5_nucleo144/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/testhal/STM32/multi/SDMMC-FATFS/cfg/stm32l4r9ai_discovery/mcuconf.h b/testhal/STM32/multi/SDMMC-FATFS/cfg/stm32l4r9ai_discovery/mcuconf.h
index bb0ee4136..1d335785d 100644
--- a/testhal/STM32/multi/SDMMC-FATFS/cfg/stm32l4r9ai_discovery/mcuconf.h
+++ b/testhal/STM32/multi/SDMMC-FATFS/cfg/stm32l4r9ai_discovery/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/testhal/STM32/multi/SPI/cfg/stm32h743_nucleo144/mcuconf.h b/testhal/STM32/multi/SPI/cfg/stm32h743_nucleo144/mcuconf.h
index f0ccdde72..08cda49a1 100644
--- a/testhal/STM32/multi/SPI/cfg/stm32h743_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/SPI/cfg/stm32h743_nucleo144/mcuconf.h
@@ -183,8 +183,8 @@
 
 #define STM32_IRQ_QUADSPI1_PRIORITY         10
 
-#define STM32_IRQ_SDMMC1_PRIORITY           8
-#define STM32_IRQ_SDMMC2_PRIORITY           8
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+#define STM32_IRQ_SDMMC2_PRIORITY           9
 
 #define STM32_IRQ_TIM1_UP_PRIORITY          7
 #define STM32_IRQ_TIM1_CC_PRIORITY          7
diff --git a/testhal/STM32/multi/SPI/cfg/stm32l4r5_nucleo144/mcuconf.h b/testhal/STM32/multi/SPI/cfg/stm32l4r5_nucleo144/mcuconf.h
index a66bf8c57..b202b1ff1 100644
--- a/testhal/STM32/multi/SPI/cfg/stm32l4r5_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/SPI/cfg/stm32l4r5_nucleo144/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/testhal/STM32/multi/SPI/cfg/stm32l4r9_discovery/mcuconf.h b/testhal/STM32/multi/SPI/cfg/stm32l4r9_discovery/mcuconf.h
index e8cb2ba8d..39cbbe68a 100644
--- a/testhal/STM32/multi/SPI/cfg/stm32l4r9_discovery/mcuconf.h
+++ b/testhal/STM32/multi/SPI/cfg/stm32l4r9_discovery/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/testhal/STM32/multi/TRNG/cfg/stm32l4r5zi_nucleo144/mcuconf.h b/testhal/STM32/multi/TRNG/cfg/stm32l4r5zi_nucleo144/mcuconf.h
index d598d42a1..467b16ce7 100644
--- a/testhal/STM32/multi/TRNG/cfg/stm32l4r5zi_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/TRNG/cfg/stm32l4r5zi_nucleo144/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/testhal/STM32/multi/USB_CDC/cfg/stm32h743_nucleo144/mcuconf.h b/testhal/STM32/multi/USB_CDC/cfg/stm32h743_nucleo144/mcuconf.h
index bf8472654..fd8a280fd 100644
--- a/testhal/STM32/multi/USB_CDC/cfg/stm32h743_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/USB_CDC/cfg/stm32h743_nucleo144/mcuconf.h
@@ -183,8 +183,8 @@
 
 #define STM32_IRQ_QUADSPI1_PRIORITY         10
 
-#define STM32_IRQ_SDMMC1_PRIORITY           8
-#define STM32_IRQ_SDMMC2_PRIORITY           8
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+#define STM32_IRQ_SDMMC2_PRIORITY           9
 
 #define STM32_IRQ_TIM1_UP_PRIORITY          7
 #define STM32_IRQ_TIM1_CC_PRIORITY          7
diff --git a/testhal/STM32/multi/USB_CDC/cfg/stm32l4r5_nucleo144/mcuconf.h b/testhal/STM32/multi/USB_CDC/cfg/stm32l4r5_nucleo144/mcuconf.h
index 0bde215aa..7622b3981 100644
--- a/testhal/STM32/multi/USB_CDC/cfg/stm32l4r5_nucleo144/mcuconf.h
+++ b/testhal/STM32/multi/USB_CDC/cfg/stm32l4r5_nucleo144/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/testhal/STM32/multi/WSPI-MFS/cfg/stm32l4r9_discovery/mcuconf.h b/testhal/STM32/multi/WSPI-MFS/cfg/stm32l4r9_discovery/mcuconf.h
index f0ddcb5bd..cdb7dfd3d 100644
--- a/testhal/STM32/multi/WSPI-MFS/cfg/stm32l4r9_discovery/mcuconf.h
+++ b/testhal/STM32/multi/WSPI-MFS/cfg/stm32l4r9_discovery/mcuconf.h
@@ -125,6 +125,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           6
 #define STM32_IRQ_EXTI21_22_PRIORITY        6
 
+#define STM32_IRQ_SDMMC1_PRIORITY           9
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   7
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    7
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
diff --git a/tools/ftl/processors/conf/mcuconf_stm32h743xx/mcuconf.h.ftl b/tools/ftl/processors/conf/mcuconf_stm32h743xx/mcuconf.h.ftl
index 5c7731107..bd9f1c492 100644
--- a/tools/ftl/processors/conf/mcuconf_stm32h743xx/mcuconf.h.ftl
+++ b/tools/ftl/processors/conf/mcuconf_stm32h743xx/mcuconf.h.ftl
@@ -194,8 +194,8 @@
 
 #define STM32_IRQ_QUADSPI1_PRIORITY         ${doc.STM32_IRQ_QUADSPI1_PRIORITY!"10"}
 
-#define STM32_IRQ_SDMMC1_PRIORITY           ${doc.STM32_IRQ_SDMMC1_PRIORITY!"8"}
-#define STM32_IRQ_SDMMC2_PRIORITY           ${doc.STM32_IRQ_SDMMC2_PRIORITY!"8"}
+#define STM32_IRQ_SDMMC1_PRIORITY           ${doc.STM32_IRQ_SDMMC1_PRIORITY!"9"}
+#define STM32_IRQ_SDMMC2_PRIORITY           ${doc.STM32_IRQ_SDMMC2_PRIORITY!"9"}
 
 #define STM32_IRQ_TIM1_UP_PRIORITY          ${doc.STM32_IRQ_TIM1_UP_PRIORITY!"7"}
 #define STM32_IRQ_TIM1_CC_PRIORITY          ${doc.STM32_IRQ_TIM1_CC_PRIORITY!"7"}
diff --git a/tools/ftl/processors/conf/mcuconf_stm32l4rxxx/mcuconf.h.ftl b/tools/ftl/processors/conf/mcuconf_stm32l4rxxx/mcuconf.h.ftl
index 43973bbdd..d4c0b3633 100644
--- a/tools/ftl/processors/conf/mcuconf_stm32l4rxxx/mcuconf.h.ftl
+++ b/tools/ftl/processors/conf/mcuconf_stm32l4rxxx/mcuconf.h.ftl
@@ -136,6 +136,8 @@
 #define STM32_IRQ_EXTI20_PRIORITY           ${doc.STM32_IRQ_EXTI20_PRIORITY!"6"}
 #define STM32_IRQ_EXTI21_22_PRIORITY        ${doc.STM32_IRQ_EXTI21_22_PRIORITY!"6"}
 
+#define STM32_IRQ_SDMMC1_PRIORITY           ${doc.STM32_IRQ_SDMMC1_PRIORITY!"9"}
+
 #define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY   ${doc.STM32_IRQ_TIM1_BRK_TIM15_PRIORITY!"7"}
 #define STM32_IRQ_TIM1_UP_TIM16_PRIORITY    ${doc.STM32_IRQ_TIM1_UP_TIM16_PRIORITY!"7"}
 #define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY ${doc.STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY!"7"}