Blinky project

The Blinky project can be easily used to verify the basic tool setup.

It is compliant to the Cortex Microcontroller Software Interface Standard (CMSIS) and uses the CMSIS-RTOS v2 API for RTOS functionality. The CMSIS-RTOS v2 API is supported by various real-time operating systems, for example Keil RTX5 or FreeRTOS.

Operation

• At start the vioLED0 blinks in 1 sec interval.
• The vioBUTTON0 changes the blink frequency and start/stops vioLED1.

The board hardware mapping of vioLED0, vioLED1, and vioBUTTON0 depends on the configuration of the CMSIS-Driver VIO.

RTOS: FreeRTOS Real-Time Operating System

The real-time operating system FreeRTOS implements the resource management.

It is configured with the following settings:

• Minimal stack size [words]: 768
• Total heap size [bytes]: 24000
• Preemption interrupt priority: 128
• Event Recorder configuration
  • Initialize Event Recorder: 1

Refer to Configure CMSIS-FreeRTOS for a detailed description of all configuration options.

Board: STMicroelectronics STM32H745I-DISCO

The tables below list the device configuration for this board.

The heap/stack setup is in configuration files of related software components.

The example project can be re-configured to work on custom hardware. Refer to "Migrate STM32 Based Example Projects to Custom Hardware" for information.

System Configuration

System Component	Setting
Device	STM32H745XIHx
ICACHE	enabled
DCACHE	enabled
Heap	64 kB (configured in startup file)
Stack (MSP)	1 kB (configured in startup file)

Clock Configuration

Clock	Setting
SYSCLK	400 MHz (Cortex-M7 CPU Clock)
HCLK	200 MHz (Cortex-M4 CPU, Bus matrix Clocks)
APB1	100 MHz
APB2	100 MHz
APB3	100 MHz

CMSIS-Driver mapping

CMSIS-Driver VIO	Physical board hardware
vioBUTTON0	Button USER (PC13)
vioLED0	LD6 RED (PJ2)
vioLED1	LD7 RED (PI13)