diff --git a/libraries/AP_HAL_ChibiOS/hwdef/NucleoH743/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/NucleoH743/hwdef.dat
index 94cd852dbd..af815178f0 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/NucleoH743/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/NucleoH743/hwdef.dat
@@ -20,7 +20,7 @@ FLASH_RESERVE_START_KB 128
 STM32_VDD 330U
 
 # order of UARTs (and USB)
-UART_ORDER OTG1
+UART_ORDER OTG1 UART7
 
 PA11 OTG_FS_DM OTG1
 PA12 OTG_FS_DP OTG1
@@ -28,5 +28,42 @@ PA12 OTG_FS_DP OTG1
 PA13 JTMS-SWDIO SWD
 PA14 JTCK-SWCLK SWD
 
+# UART7 is debug
+PF6 UART7_RX UART7 NODMA
+PE8 UART7_TX UART7 NODMA
+
 define HAL_USE_EMPTY_STORAGE 1
 define HAL_STORAGE_SIZE 16384
+
+define HAL_SPI_CHECK_CLOCK_FREQ
+
+# sensor CS
+PF10 MS5611_CS CS
+PF2  ICM20689_CS CS SPEED_VERYLOW
+PF3  ICM20602_CS CS SPEED_VERYLOW
+PF4  BMI055_G_CS CS
+PG10 BMI055_A_CS CS
+PF5  FRAM_CS CS SPEED_VERYLOW
+
+# SPI devices
+SPIDEV ms5611         SPI4 DEVID1  MS5611_CS    MODE3 20*MHZ 20*MHZ
+SPIDEV icm20689       SPI1 DEVID1  ICM20689_CS  MODE3  2*MHZ  8*MHZ
+SPIDEV icm20602       SPI1 DEVID2  ICM20602_CS  MODE3  2*MHZ  8*MHZ
+SPIDEV bmi055_g       SPI1 DEVID3  BMI055_G_CS  MODE3 10*MHZ 10*MHZ
+SPIDEV bmi055_a       SPI1 DEVID4  BMI055_A_CS  MODE3 10*MHZ 10*MHZ
+SPIDEV ramtron        SPI2 DEVID1  FRAM_CS      MODE3  8*MHZ  8*MHZ 
+
+# SPI1 - internal sensors
+PG11 SPI1_SCK SPI1
+PA6 SPI1_MISO SPI1
+PD7 SPI1_MOSI SPI1
+
+# SPI2 - FRAM
+PI1 SPI2_SCK SPI2
+PI2 SPI2_MISO SPI2
+PI3 SPI2_MOSI SPI2
+
+# SPI4 - sensors2
+PE2 SPI4_SCK SPI4
+PE13 SPI4_MISO SPI4
+PE6 SPI4_MOSI SPI4