MINI-M4 for STM32
Overview
MINI-M4 for STM32 is a small ARM® Cortex™-M4 development board containing an STM32F415RG microcontroller. It is pin compatible with PIC16F887 and PIC18(L)F45K20 microcontrollers and it perfectly fits into a standard DIP40 socket. The board is equipped with a 16MHz SMD crystal oscillator, and a 32.768KHz crystal which can be used for the internal RTCC module. It has a reset button and three signal LEDs. It operates on a 3.3V power supply. An on-board voltage regulator allows the board to be powered directly from a USB cable.
Pin Mapping
This port is a starting point for your own customizations and not a complete port for a specific board. Most of the GPIOs on the STM32 SoC have been exposed in the external header with silk screen labels that match the SoC’s pin names.
For more information on Pin Mapping, please refer to MINI-M4 for STM32 User Manual.
STLinkV2 connection:
The board can be flashed by using STLinkV2 with the following connections.
MINI-M4(Pin no.) |
ST-Link/V2(Pin no.) |
|---|---|
PA14(36) |
TCK_SWCLK(9) |
PA13(35) |
TMS_SWDIO(7) |
PA15(30) |
TDI(5) |
PB3(29) |
TDO_SWO(13) |
GND(31) |
GND(8) |
MCLR(1) |
NRST(15) |
Supported Features
The mikroe_mini_m4_for_stm32 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.
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M4F CPU1 |
|
ADC |
on-chip |
STM32F4 ADC1 |
|
on-chip |
STM32 ADC2 |
||
CAN |
on-chip |
STM32 CAN controller2 |
|
Clock control |
on-chip |
STM32 RCC (Reset and Clock controller)1 |
|
on-chip |
STM32 HSE Clock1 |
||
on-chip |
|||
on-chip |
STM32F4 Main PLL1 |
||
on-chip |
STM32F4 PLL I2S1 |
||
on-chip |
STM32 Microcontroller Clock Output (MCO)2 |
||
Counter |
on-chip |
STM32 counters12 |
|
Cryptographic accelerator |
on-chip |
STM32 Cryptographic Accelerator1 |
|
DAC |
on-chip |
STM32 family DAC1 |
|
DMA |
on-chip |
STM32 DMA controller (V1)2 |
|
Flash controller |
on-chip |
STM32 Family flash controller1 |
|
GPIO & Headers |
on-chip |
STM32 GPIO Controller9 |
|
I2C |
on-chip |
||
I2S |
on-chip |
STM32 I2S controller2 |
|
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 |
|
Memory controller |
on-chip |
STM32 Battery Backed RAM1 |
|
MMC |
on-chip |
STM32 SDMMC Disk Access1 |
|
MTD |
on-chip |
STM32F4 flash memory1 |
|
PHY |
on-chip |
This binding is to be used by all the usb transceivers which are built-in with USB IP2 |
|
Pin control |
on-chip |
STM32 Pin controller1 |
|
PWM |
on-chip |
||
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 quadrature decoder6 |
|
on-chip |
STM32 family TEMP node for production calibrated sensors with two calibration temperatures1 |
||
on-chip |
STM32 VREF+1 |
||
on-chip |
STM32 VBAT1 |
||
Serial controller |
on-chip |
||
on-chip |
STM32 UART2 |
||
SMbus |
on-chip |
STM32 SMBus controller3 |
|
SPI |
on-chip |
||
SRAM |
on-chip |
Generic on-chip SRAM1 |
|
Timer |
on-chip |
ARMv7-M System Tick1 |
|
on-chip |
|||
USB |
on-chip |
STM32 OTGFS controller1 |
|
on-chip |
STM32 OTGHS controller1 |
||
Watchdog |
on-chip |
STM32 watchdog1 |
|
on-chip |
STM32 system window watchdog1 |
Serial Port
The Zephyr console output is assigned to USART2. Default settings are 115200 8N1.
Programming and Debugging
Applications for the mikroe_mini_m4_for_stm32 board configuration can
be built and flashed in the usual way (see Building an Application and
Run an Application for more details).
Flashing
The initial state of the board is set to lock. When you flash, it will fail with the message:
Error: stm32x device protected
Unlocking with openocd makes it possible to flash.
$ openocd -f /usr/share/openocd/scripts/interface/stlink-v2.cfg \
-f /usr/share/openocd/scripts/target/stm32f4x.cfg -c init\
-c "reset halt" -c "stm32f4x unlock 0" -c "reset run" -c shutdown
Here is an example for the Hello World application.
# From the root of the zephyr repository
west build -b mikroe_mini_m4_for_stm32 samples/hello_world
west flash
You should see the following message on the console:
Hello World! mikroe_mini_m4_for_stm32
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 mikroe_mini_m4_for_stm32 samples/hello_world
west debug