Zest_Core_STM32G474VET

Overview

The Zest_Core_STM32G474 is an electronics development board for 6TRON opensource platform based on STMicroelectronics STM32G474 microcontroller.

The STM32G474 is a 32-bit Arm Cortex M4 core (with FPU and DSP instructions). The frequency of the core can reach 170MHz with 213 DMIPS. It integrates 512 Kbytes of Flash and 96 Kbytes of RAM.

The Zest_Core_STM32G474 features a high density 80-pins interface header integrating configurable standard communication interfaces (at least 1 SPI, 1 I2C, 4 Analog, 1 UART, 1 ICAP, 3 PWM, 36 DIO, 1 Reset and 3 Power supply pins). See 80-pin 6TRON header.

Specifications

MCU Features:

• ARM 32-bit Cortex-M4 CPU with floating point unit (FPU)
  • 170 MHz max CPU frequency
  • 213 DMIP - MPU and DSP instructions
  • 512 kB flash memory
  • 96 kB RAM

Feature	Details
User Interfaces	1 user LED 1 power LED 1 user push button 1 reset button
Connectivity	Micro-USB for UART (through FTDI) Micro-USB device JTAG interface (debug and programming) 80-pin 6TRON headers
Board size	80 x 39 mm
Power Supply	Micro-USB JTAG External (VJack) 3-12V
Category	Zest_Core

Block Diagram

The graphics below gives an overview of the board features and connections.

80-pins 6TRON header

This table shows how the pinout on Zest_Core_STM32G474 corresponds to the pinout on the 6TRON BUS connector (the latter shown in the two middle columns).

Description	6TRON function	Pin number	Pin number	6TRON function	Description
External Power Supply	VJACK	1	2	VJACK	External Power Supply
External Power Supply	VJACK	3	4	VJACK	External Power Supply
High Voltage External Power Supply	VHV	5	6	VHV	High Voltage External Power Supply
High Voltage External Power Supply	VHV	7	8	VHV	High Voltage External Power Supply
I/O	DIO8	9	10	VIN_EN	Disable 6TRON stack power supply from Core
I/O	DIO7	11	12	DIO9	I/O
I/O	DIO6	13	14	DIO10	I/O
Mother or daughter detect	MD	15	16	DIO11	I/O
I/O	DIO5	17	18	DIO12	I/O
Ground	GND	19	20	GND	Ground
Ground	GND	21	22	GND	Ground
6TRON Stack Power Supply	VIN	23	24	VIN	6TRON Stack Power Supply
6TRON Stack Power Supply	VIN	25	26	VIN	6TRON Stack Power Supply
Enable 6TRON stack power supply from daughter	VB_EN	27	28	DIO13	I/O
Power Zest output signal	VB_OUT	29	30	DIO14	I/O
Analog Output	DAC1	31	32	DIO15	I/O
Analog Input	ADC4	33	34	DIO16	I/O
Analog Input	ADC3	35	36	DIO17	I/O
Analog Input	ADC2	37	38	DIO18	I/O
Analog Input	ADC1	39	40	GND	Ground
Global Reset	EXT_NRST	41	42	GND	Ground
I/O	DIO4	43	44	VREF	Reference Voltage
I/O	DIO3	45	46	DIO19	I/O
I/O	DIO2	47	48	DIO20	I/O
I/O	DIO1	49	50	DIO21	I/O
System wake-up	WKUP	51	52	DIO22	I/O
Input Capture	ICAPT	53	54	DIO23	I/O
PWM Output	PWM3	55	56	DIO24	I/O
PWM Output	PWM2	57	58	DIO25	I/O
PWM Output	PWM1	59	60	DIO26	I/O
SPI Chip select	SPI1_SS	61	62	DIO27	I/O
SPI Clock	SPI1_SCK	63	64	DIO28	I/O
SPI MISO	SPI1_MISO	65	66	DIO29	I/O
SPI MOSI	SPI1_MOSI	67	68	DIO30	I/O
UART core to Zest	UART1_TX	69	70	DIO31	I/O
UART Zest to core	UART1_RX	71	72	DIO32	I/O
I2C Data	I2C1_SDA	73	74	DIO33	I/O
I2C Clock	I2C1_SCL	75	76	DIO34	I/O
CAN core to driver	CAN1_TX	77	78	DIO35	I/O
CAN driver to core	CAN1_RX	79	80	DIO36	I/O

Software Support

Thanks to the Mbed API, any program developed for this specific reference can be easily compiled for the same MCU in another package or even another ARM Cortex-M core during the integration phase of the project.

Environmental impact

The Eco score of the Zest_Core_STM32G474VET is expressed in points representing the environmental impact of an average European per year.

Eco-score details

BOM

Component	data	unit
Passive electronic component	0,29	g
Active electronic component	0,11	g
LED	0,012	g
Other component	0,016	g
Connectors Switchs	3,33	g
Logique type integrated circuit	0,94	g
Memory type integrated circuit	0,00	g
PCB	3120	mm²

Consumption

Low voltage electricity voltage France
Current	20	mA
Supply voltage	5	V
Autonomy	100	h
% use	75	%
Power	0,0075	kWh

Ressources

• Schematic
• Assembly Drawing
• Bill Of Materials
• Datasheets
• Mbed OS target