The STM32H745I discovery kit contains a dual core processor with various internal and external peripherals.

External peripherals include the following

4.3" touchscreen
Audio codec
SDRAM
EMMC

       MICROPHONE       POWER 
      --------------------------------------
TAG   |                                    |
      |   4.3" 480x272 WQVGA TOUCHSCREEN   | LEDS
STMOD |                                    |
      -------------------------------------|
       USER BUTTON RESET BUTTON   ETHERNET

The STMOD interface supports MikorBUS, ESP-01 and GROVE I2C/UART.

/mnt/c/Apps/OpenOCD-20230712-0.12.0/bin/openocd.exe -f "interface/stlink.cfg" -c "transport select hla_swd" -f "target/stm32h7x.cfg"
Open On-Chip Debugger 0.12.0 (2023-07-12) [https://github.com/sysprogs/openocd]
Licensed under GNU GPL v2
libusb1 09e75e98b4d9ea7909e8837b7a3f00dda4589dc3
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
hla_swd
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : clock speed 1800 kHz
Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED
Info : STLINK V3J13M4 (API v3) VID:PID 0483:3754
Info : Target voltage: 3.265339
Info : [stm32h7x.cpu0] Cortex-M7 r1p1 processor detected
Info : [stm32h7x.cpu0] target has 8 breakpoints, 4 watchpoints
Info : starting gdb server for stm32h7x.cpu0 on 3333
Info : Listening on port 3333 for gdb connections

Product page

Data brief

User manual

STMOD break-out board manual

MCU product page

MCU data-sheet

MCU reference manual

ST demos

FreeRTOS dual core demo

FreeRTOS dual core demo on github