14c92da96d
While recent browsers seem to transparently try to use https for http://www.st.com/... URLs, they are effectively not working anymore, so use https://www.st.com/... URLs instead. curl http://www.st.com/en/evaluation-tools/nucleo-g070rb.html -m 5 -v * Trying 104.89.117.48:80... * Connected to www.st.com (104.89.117.48) port 80 (#0) > GET /en/evaluation-tools/nucleo-g070rb.html HTTP/1.1 > Host: www.st.com > User-Agent: curl/8.1.2 > Accept: */* > * Operation timed out after 5002 milliseconds with 0 bytes received * Closing connection 0 curl: (28) Operation timed out after 5002 milliseconds with 0 bytes received Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
174 lines
5.5 KiB
ReStructuredText
174 lines
5.5 KiB
ReStructuredText
.. _blackpill_f401cc:
|
|
|
|
WeAct Studio Black Pill V1.2
|
|
############################
|
|
|
|
Overview
|
|
********
|
|
|
|
The WeAct Black Pill V1.2 Board is an extremely low cost and bare-bones
|
|
development board featuring the STM32F401CC, see `STM32F401CC website`_.
|
|
This is the 48-pin variant of the STM32F401x series,
|
|
see `STM32F401x reference manual`_. More info about the board available
|
|
`here <stm32-base-board-page_>`_ and on `WeAct Github`_.
|
|
|
|
.. image:: img/blackpill-v3.jpg
|
|
:align: center
|
|
:alt: Black Pill V3.0+
|
|
|
|
Hardware
|
|
********
|
|
|
|
The STM32F401CC based Black Pill V3.0+ Board provides the following
|
|
hardware components:
|
|
|
|
- STM32F401CCU6 in UFQFPN48 package
|
|
- ARM |reg| 32-bit Cortex |reg| -M4 CPU with FPU
|
|
- 84 MHz max CPU frequency
|
|
- VDD from 1.7 V to 3.6 V
|
|
- 256 KB Flash
|
|
- 64 KB SRAM
|
|
- GPIO with external interrupt capability
|
|
- 1x12-bit, 2.4 MSPS ADC with 16 channels
|
|
- DMA Controller
|
|
- Up to 11 Timers (six 16-bit, two 32-bit, two watchdog timers and a SysTick timer)
|
|
- USART/UART (3)
|
|
- I2C (3)
|
|
- SPI/I2S (5)
|
|
- SDIO
|
|
- USB 2.0 full-speed device/host/OTG controller with on-chip PHY
|
|
- CRC calculation unit
|
|
- 96-bit unique ID
|
|
- RTC
|
|
|
|
Supported Features
|
|
==================
|
|
|
|
The Zephyr blackpill_f401ce board configuration supports the following
|
|
hardware features:
|
|
|
|
+------------+------------+-------------------------------------+
|
|
| Interface | Controller | Driver/Component |
|
|
+============+============+=====================================+
|
|
| NVIC | on-chip | nested vector interrupt controller |
|
|
+------------+------------+-------------------------------------+
|
|
| SYSTICK | on-chip | system clock |
|
|
+------------+------------+-------------------------------------+
|
|
| UART | on-chip | serial port |
|
|
+------------+------------+-------------------------------------+
|
|
| GPIO | on-chip | gpio |
|
|
+------------+------------+-------------------------------------+
|
|
| PINMUX | on-chip | pinmux |
|
|
+------------+------------+-------------------------------------+
|
|
| FLASH | on-chip | flash |
|
|
+------------+------------+-------------------------------------+
|
|
| SPI | on-chip | spi |
|
|
+------------+------------+-------------------------------------+
|
|
| I2C | on-chip | i2c |
|
|
+------------+------------+-------------------------------------+
|
|
| ADC | on-chip | ADC Controller |
|
|
+------------+------------+-------------------------------------+
|
|
| USB OTG FS | on-chip | USB device |
|
|
+------------+------------+-------------------------------------+
|
|
|
|
The default configuration can be found in the defconfig file:
|
|
|
|
``boards/arm/blackpill_f401ce/blackpill_f401ce_defconfig``
|
|
|
|
Pin Mapping
|
|
===========
|
|
|
|
Available pins:
|
|
---------------
|
|
.. image:: img/Blackpill_Pinout.jpg
|
|
:align: center
|
|
:alt: Black Pill V1.2 Pinout
|
|
|
|
Default Zephyr Peripheral Mapping:
|
|
----------------------------------
|
|
|
|
- UART_1 TX/RX : PA9/PA10
|
|
- I2C1 SCL/SDA : PB8/PB9
|
|
- SPI1 CS/SCK/MISO/MOSI : PA4/PA5/PA6/PA7 (Routed to footprint for external flash)
|
|
- PWM_4_CH1 : PB6
|
|
- PWM_4_CH2 : PB7
|
|
- ADC_1 : PA1
|
|
- USER_PB : PA0
|
|
- USER_LED : PC13
|
|
|
|
Clock Sources
|
|
-------------
|
|
|
|
The board has two external oscillators. The frequency of the slow clock (LSE) is
|
|
32.768 kHz. The frequency of the main clock (HSE) is 25 MHz.
|
|
|
|
The default configuration sources the system clock from the PLL, which is
|
|
derived from HSE, and is set at 84MHz, which is the maximum possible frequency
|
|
to achieve a stable USB clock (42MHz).
|
|
|
|
Programming and Debugging
|
|
*************************
|
|
|
|
There are 2 main entry points for flashing STM32F4X SoCs, one using the ROM
|
|
bootloader, and another by using the SWD debug port (which requires additional
|
|
hardware). Flashing using the ROM bootloader requires a special activation
|
|
pattern, which can be triggered by using the BOOT0 pin.
|
|
|
|
Flashing
|
|
========
|
|
|
|
Installing dfu-util
|
|
-------------------
|
|
|
|
It is recommended to use at least v0.8 of `dfu-util`_. The package available in
|
|
debian/ubuntu can be quite old, so you might have to build dfu-util from source.
|
|
|
|
There is also a Windows version which works, but you may have to install the
|
|
right USB drivers with a tool like `Zadig`_.
|
|
|
|
Flashing an Application
|
|
-----------------------
|
|
|
|
Connect a USB-C cable and the board should power ON. Force the board into DFU mode
|
|
by keeping the BOOT0 switch pressed while pressing and releasing the NRST switch.
|
|
|
|
The dfu-util runner is supported on this board and so a sample can be built and
|
|
tested easily.
|
|
|
|
.. zephyr-app-commands::
|
|
:zephyr-app: samples/basic/blinky
|
|
:board: blackpill_f401cc
|
|
:goals: build flash
|
|
|
|
Debugging
|
|
=========
|
|
|
|
The board can be debugged by installing the included 100 mil (0.1 inch) header,
|
|
and attaching an SWD debugger to the 3V3 (3.3V), GND, SCK, and DIO
|
|
pins on that header.
|
|
|
|
References
|
|
**********
|
|
|
|
.. target-notes::
|
|
|
|
.. _board release notes:
|
|
https://github.com/WeActStudio/WeActStudio.MiniSTM32F4x1/blob/master/HDK/README.md
|
|
|
|
.. _Zadig:
|
|
https://zadig.akeo.ie/
|
|
|
|
.. _WeAct Github:
|
|
https://github.com/WeActStudio/WeActStudio.MiniSTM32F4x1
|
|
|
|
.. _stm32-base-board-page:
|
|
https://stm32-base.org/boards/STM32F401CCU6-WeAct-Black-Pill-V1.2.html
|
|
|
|
.. _dfu-util:
|
|
http://dfu-util.sourceforge.net/build.html
|
|
|
|
.. _STM32F401CC website:
|
|
https://www.st.com/en/microcontrollers/stm32f401cc.html
|
|
|
|
.. _STM32F401x reference manual:
|
|
https://www.st.com/resource/en/reference_manual/dm00096844.pdf
|