STM32U5 Drivers Overview ¶

The correspondence table for the STM32U5 product provides an overview of the available LL and HAL drivers, illustrating the relationship between each peripheral and the drivers that manage them.

Table 1: Peripheral vs HAL/LL drivers ¶

System Core Peripherals ¶
Peripheral	LL driver	HAL driver
DBGMCU	LL DBGMCU	HAL DBGMCU
CRS	LL CRS	HAL CRS
DCACHE	LL DCACHE	HAL DCACHE
DLYB ⁽¹⁾	–	HAL XSPI HAL MMC HAL SD HAL SDIO
EXTI	LL EXTI	HAL EXTI
FLASH	LL FLASH	HAL FLASH
GPIO	LL GPIO	HAL GPIO
GPDMA	LL DMA	HAL DMA HAL Q
ICACHE	LL ICACHE	HAL ICACHE
IWDG	LL IWDG	HAL IWDG
LPDMA	LL DMA	HAL DMA HAL Q
LPGPIO	LL LPGPIO	HAL GPIO
NVIC	–	HAL CORTEX
RAMCFG	LL RAMCFG	HAL RAMCFG
RCC	LL RCC	HAL RCC
SYSCFG	LL SYSCFG	HAL SYSCFG
TSC	LL TSC	–
WWDG	LL WWDG	HAL WWDG

Analog Peripherals ¶
Peripheral	LL driver	HAL driver
ADC	LL ADC	HAL ADC
ADF	–	HAL ADF
COMP	LL COMP	HAL COMP
DAC	LL DAC	HAL DAC
MDF	–	HAL MDF
OPAMP	LL OPAMP	HAL OPAMP
VREFBUF	LL VREFBUF	HAL VREFBUF

Timers Peripherals ¶
Peripheral	LL driver	HAL driver
LPTIM	LL LPTIM	HAL LPTIM
RTC	LL RTC	HAL RTC
TAMP	LL TAMP	HAL TAMP
TIM	LL TIM	HAL TIM

Connectivity Peripherals ¶
Peripheral	LL driver	HAL driver
FDCAN	–	HAL FDCAN
FSMC/FMC	–	HAL NOR HAL SRAM
HSPI	–	HAL XSPI
I2C	LL I2C	HAL I2C HAL SMBUS
LPUART	LL LPUART	HAL UART
OCTOSPI	–	HAL XSPI
OCTOSPIM	–	HAL XSPI
SDMMC	–	HAL MMC HAL SD HAL SDIO
SPI	LL SPI	HAL SPI
USART	LL USART	HAL UART HAL USART HAL SMARTCARD
USB	–	HAL HCD HAL PCD

Multimedia Peripherals ¶
Peripheral	LL driver	HAL driver
DCMI	–	HAL DCMI
DMA2D	LL DMA2D	HAL DMA2D
DSI	–	HAL DSI
GFXMMU	–	HAL GFXMMU
GFXTIM	LL GFXTIM	HAL GFXTIM
GPU2D	–	HAL GPU2D
JPEG	–	HAL JPEG
LTDC	–	HAL LTDC
PSSI	–	HAL PSSI
SAI	–	HAL SAI

Security Peripherals ¶
Peripheral	LL driver	HAL driver
AES	–	HAL AES
GTZC	LL GTZC	HAL GTZC
HASH	–	HAL HASH
OTFDEC ⁽²⁾	–	HAL XSPI
PKA	LL PKA	HAL PKA
RNG	LL RNG	HAL RNG
SAES	–	HAL AES

Computing Peripherals ¶
Peripheral	LL driver	HAL driver
CORDIC	LL CORDIC	HAL CORDIC
CRC	LL CRC	HAL CRC
FMAC	LL FMAC	HAL FMAC

Power and Thermal Peripherals ¶
Peripheral	LL driver	HAL driver
PWR	LL PWR	HAL PWR
UCPD	LL UCPD	HAL UCPD

Note

⁽¹⁾ The DLYB is implemented as a core driver (not user driver), then the required user DLYB APIs are provided to the user by HAL XSPI , HAL MMC , HAL SD and HAL SDIO drivers.

No LL driver and the Low Layer APIs are already provided by ARM CMSIS services for each given CortexM.

Note

⁽²⁾ The OTFDEC is implemented as a core driver (not user driver), then the required user OTFDEC APIs are provided to the user by HAL XSPI driver.

No LL driver and the Low Layer APIs are already provided by ARM CMSIS services for each given CortexM.

Table 2: Peripheral vs STM32U5 series ¶

List of peripherals supported by STM32U5 series

Peripheral	STM32U5Fx/5Gx	STM32U59x/5Ax	STM32U57x/58x	STM32U53x/54x
ADC	YES	YES	YES	YES
ADF	YES	YES	YES	YES
AES	YES	YES	YES	YES
DBGMCU	YES	YES	YES	YES
COMP	YES	YES	YES	YES
CORDIC	YES	YES	YES	YES
CRC	YES	YES	YES	YES
CRS	YES	YES	YES	YES
DAC	YES	YES	YES	YES
DCACHE	YES	YES	YES	YES
DCMI	YES	YES	YES	NO
DMA2D	YES	YES	YES	NO
DLYB ⁽¹⁾	YES	YES	YES	YES
DSI	YES	YES	NO	NO
EXTI	YES	YES	YES	YES
FDCAN	YES	YES	YES	YES
FLASH	YES	YES	YES	YES
FMAC	YES	YES	YES	YES
FSMC/FMC	YES	YES	YES	NO
GFXMMU	YES	NO	NO	NO
GFXTIM	YES	NO	NO	NO
GPIO	YES	YES	YES	YES
GPDMA	YES	YES	YES	YES
GPU2D	YES	YES	NO	NO
GTZC	YES	YES	YES	YES
HASH	YES	YES	YES	YES
HSPI	YES	YES	NO	NO
I2C	YES	YES	YES	YES
ICACHE	YES	YES	YES	YES
IWDG	YES	YES	YES	YES
JPEG	YES	NO	NO	NO
LPDMA	YES	YES	YES	YES
LPGPIO	YES	YES	YES	YES
LPTIM	YES	YES	YES	YES
LPUART	YES	YES	YES	YES
LTDC	YES	NO	NO	NO
MDF	YES	YES	YES	YES
NVIC	YES	YES	YES	YES
OCTOSPI	YES	YES	YES	YES
OCTOSPIM	YES	YES	YES	NO
OPAMP	YES	YES	YES	YES
OTFDEC ⁽²⁾	YES	YES	YES	YES
PKA	YES	YES	YES	YES
PSSI	YES	YES	YES	YES
PWR	YES	YES	YES	YES
RAMCFG	YES	YES	YES	YES
RCC	YES	YES	YES	YES
RNG	YES	YES	YES	YES
RTC	YES	YES	YES	YES
SAES	YES	YES	YES	YES
SAI	YES	YES	YES	YES
SDMMC	YES	YES	YES	YES
SPI	YES	YES	YES	YES
SYSCFG	YES	YES	YES	YES
TAMP	YES	YES	YES	YES
TIM	YES	YES	YES	YES
TSC	YES	YES	YES	YES
UCPD	YES	YES	YES	NO
USART	YES	YES	YES	YES
USB	YES	YES	YES	NO
VREFBUF	YES	YES	YES	YES
WWDG	YES	YES	YES	YES