STM32H735G Discovery
Overview
The STM32H735G-DK Discovery kit is a complete demonstration and development platform for Arm® Cortex®-M7 core-based STM32H735IGK6U microcontroller, with 1 Mbyte of Flash memory and 564 Kbytes of SRAM.
The STM32H735G-DK Discovery kit is used as a reference design for user application development before porting to the final product, thus simplifying the application development.
The full range of hardware features available on the board helps users to enhance their application development by an evaluation of all the peripherals (such as USB OTG FS, Ethernet, microSD™ card, USART, CAN FD, SAI audio DAC stereo with audio jack input and output, MEMS digital microphone, HyperRAM™, Octo-SPI Flash memory, RGB interface LCD with capacitive touch panel, and others). ARDUINO® Uno V3, Pmod™ and STMod+ connectors provide easy connection to extension shields or daughterboards for specific applications.
STLINK-V3E is integrated into the board, as the embedded in-circuit debugger and programmer for the STM32 MCU and USB Virtual COM port bridge. STM32H735G-DK board comes with the STM32CubeH7 MCU Package, which provides an STM32 comprehensive software HAL library as well as various software examples.
More information about the board can be found at the STM32H735G-DISCO website. More information about STM32H735 can be found here:
Supported Features
The stm32h735g_disco board supports the hardware features listed below.
- on-chip / on-board
- Feature integrated in the SoC / present on the board.
- 2 / 2
-
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files. -
vnd,foo -
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.
stm32h735g_disco/stm32h735xx target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M7 CPU1 |
|
ADC |
on-chip |
||
CAN |
on-chip |
||
Clock control |
on-chip |
STM32H7 RCC (Reset and Clock controller)1 |
|
on-chip |
STM32 HSE Clock1 |
||
on-chip |
STM32 HSI Clock1 |
||
on-chip |
|||
on-chip |
STM32 LSE Clock1 |
||
on-chip |
|||
on-chip |
STM32 Clock multiplexer1 |
||
on-chip |
STM32 Microcontroller Clock Output (MCO)2 |
||
Counter |
on-chip |
STM32 counters14 |
|
Cryptographic accelerator |
on-chip |
STM32 Cryptographic Accelerator1 |
|
DAC |
on-chip |
STM32 family DAC1 |
|
Display |
on-chip |
STM32 LCD-TFT display controller1 |
|
DMA |
on-chip |
STM32 DMA controller (V1)2 |
|
on-chip |
STM32 BDMA controller1 |
||
on-chip |
STM32 DMAMUX controller2 |
||
Ethernet |
on-chip |
STM32H7 Ethernet1 |
|
on-board |
Generic MII PHY1 |
||
Flash controller |
on-chip |
STM32 Family flash controller1 |
|
on-board |
STM32 OSPI Flash controller supporting the JEDEC CFI interface1 |
||
GPIO & Headers |
on-chip |
STM32 GPIO Controller11 |
|
on-board |
GPIO pins exposed on a Digilent Pmod interface1 |
||
I2C |
on-chip |
STM32 I2C V2 controller4 |
|
I2S |
on-chip |
STM32H7 I2S controller3 |
|
Input |
on-board |
Group of GPIO-bound input keys1 |
|
Interrupt controller |
on-chip |
ARMv7-M NVIC (Nested Vectored Interrupt Controller)1 |
|
on-chip |
STM32 External Interrupt Controller1 |
||
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
MDIO |
on-chip |
STM32 MDIO Controller1 |
|
Memory controller |
on-chip |
STM32 Battery Backed RAM1 |
|
on-chip |
STM32H7 Flexible Memory Controller (FMC)1 |
||
on-chip |
STM32 Flexible Memory Controller (SDRAM controller)1 |
||
MMC |
on-chip |
STM32 SDMMC Disk Access2 |
|
MMU / MPU |
on-chip |
ARMv7-M Memory Protection Unit (MPU)1 |
|
MTD |
on-chip |
STM32 flash memory1 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
OCTOSPI |
on-chip |
||
PHY |
on-chip |
This binding is to be used by all the usb transceivers which are built-in with USB IP1 |
|
Pin control |
on-chip |
STM32 Pin controller1 |
|
PWM |
on-chip |
STM32 PWM14 |
|
Reset controller |
on-chip |
STM32 Reset and Clock Control (RCC) Controller1 |
|
RNG |
on-chip |
STM32 Random Number Generator1 |
|
RTC |
on-chip |
STM32 RTC1 |
|
Sensors |
on-chip |
STM32 Digital Temperature Sensor1 |
|
on-chip |
STM32 family TEMP node for production calibrated sensors with two calibration temperatures1 |
||
on-chip |
STM32 VBAT1 |
||
on-chip |
STM32 VREF+1 |
||
Serial controller |
on-chip |
||
on-chip |
STM32 UART5 |
||
on-chip |
STM32 LPUART1 |
||
SMbus |
on-chip |
STM32 SMBus controller4 |
|
SPI |
on-chip |
STM32H7 SPI controller6 |
|
SRAM |
on-chip |
Generic on-chip SRAM description1 |
|
Timer |
on-chip |
ARMv7-M System Tick1 |
|
on-chip |
STM32 timers16 |
||
on-chip |
STM32 low-power timer (LPTIM)1 |
||
USB |
on-chip |
STM32 OTGHS controller1 |
|
Video |
on-chip |
STM32 Digital Camera Memory Interface (DCMI)1 |
|
Watchdog |
on-chip |
STM32 watchdog1 |
|
on-chip |
STM32 system window watchdog1 |
Pin Mapping
For more details please refer to STM32H735G-DISCO website.
Default Zephyr Peripheral Mapping:
UART_3 TX/RX : PD8/PD9 (ST-Link Virtual Port Com)
UART_7 TX/RX : PF7/PF6 (Arduino Serial)
LD1 : PC2
LD2 : PC3
FDCAN1 : CAN
System Clock
The STM32H735G System Clock can be driven by an internal or external oscillator, as well as by the main PLL clock. By default, the System clock is driven by the PLL clock at 550MHz. PLL clock is feed by a 25MHz high speed external clock.
Serial Port
The STM32H735G Discovery kit has up to 6 UARTs. The Zephyr console output is assigned to UART3 which connected to the onboard ST-LINK/V3.0. Virtual COM port interface. Default communication settings are 115200 8N1.
Programming and Debugging
STM32H735G-DISCO board includes an ST-LINK/V3 embedded debug tool interface.
See Building an Application for more information about application builds.
Flashing
The board is configured to be flashed using west STM32CubeProgrammer runner, so its installation is required.
Alternatively, OpenOCD or JLink can also be used to flash the board using
the --runner (or -r) option:
$ west flash --runner openocd
$ west flash --runner jlink
It is advised to use STM32CubeProgrammer to check and update option bytes configuration.
Debugging
You can debug an application in the usual way. Here is an example for the Hello World application.
# From the root of the zephyr repository
west build -b stm32h735g_disco samples/hello_world
west debug