1.. zephyr:board:: b_g474e_dpow1 2 3Overview 4******** 5The B-G474E-DPOW1 Discovery kit is a digital power solution and a complete 6demonstration and development platform for the STMicroelectronics STM32G474RET6 7microcontroller. Leveraging the new HRTimer-oriented features, 96 Kbytes of 8embedded RAM, math accelerator functions and USB-PD 3.0 offered by STM32G474RET6, 9the B-G474E-DPOW1 Discovery kit, based on the USB 2.0 FS Type-C™ connector 10interface, helps the user to prototype applications with digital power such as a 11buck-boost converter, RGB power LED lighting or a class-D audio amplifier. The 12B-G474E-DPOW1 Discovery kit does not require any separate probe, as it integrates 13the STLINK-V3E debugger and programmer. 14 15- STM32G474RET6 Arm® Cortex®-M4 core-based microcontroller, featuring 512 Kbytes 16 of Flash memory and 128 Kbytes of SRAM, in LQFP64 package 17- USB Type-C™ with USB 2.0 FS interface compatible with USB-PD 3.0 18- RGB power LED for a bright lighting 19- Digital power buck-boost converter with internal or external Input voltage and 20 with onboard resistor loads 21- Audio Class-D amplifier capable 22- 4 user LEDs 23- 3 LEDs for power and ST-LINK communication 24- 4-direction joystick with a selection button 25- Reset push-button 26- Board connectors: 27 - USB Type-C™ 28 - USB Micro-B 29 - 2 x 32-pin header, 2.54 mm pitch, daughterboard extension connector for breadboard connection 30- Flexible power-supply options: ST-LINK USB VBUS or USB Type-C™ VBUS or external source 31- On-board STLINK-V3E debugger/programmer with USB re-enumeration capability: mass storage, 32 Virtual COM port, and debug port 33 34More information about the board can be found at the `B-G474E-DPOW1 website`_. 35 36 37More information about STM32G474RE can be found here: 38 39- `G474RE on www.st.com`_ 40- `STM32G4 reference manual`_ 41 42 43Supported Features 44================== 45 46The Zephyr b_g474e_dpow1 board configuration supports the following hardware features: 47 48+-----------+------------+-------------------------------------+ 49| Interface | Controller | Driver/Component | 50+===========+============+=====================================+ 51| NVIC | on-chip | nested vector interrupt controller | 52+-----------+------------+-------------------------------------+ 53| UART | on-chip | serial port-polling; | 54| | | serial port-interrupt | 55+-----------+------------+-------------------------------------+ 56| GPIO | on-chip | gpio | 57+-----------+------------+-------------------------------------+ 58| USB | on-chip | usb | 59+-----------+------------+-------------------------------------+ 60| UCPD | on-chip | ucpd | 61+-----------+------------+-------------------------------------+ 62| WATCHDOG | on-chip | independent watchdog | 63+-----------+------------+-------------------------------------+ 64 65Other hardware features are not yet supported in this Zephyr port. 66 67The default configuration can be found in the defconfig file: 68:zephyr_file:`boards/st/b_g474e_dpow1/b_g474e_dpow1_defconfig` 69 70Connections and IOs 71=================== 72 73Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as 74input (with or without pull-up or pull-down), or as peripheral alternate function. Most of the 75GPIO pins are shared with digital or analog alternate functions. All GPIOs are high current 76capable except for analog inputs. 77 78Default Zephyr Peripheral Mapping: 79---------------------------------- 80 81- UART_3 TX/RX : PC10/PC11 (ST-Link Virtual Port Com) 82- BUTTON (JOY_SEL) : PC13 83- BUTTON (JOY_LEFT) : PC4 84- BUTTON (JOY_DOWN) : PC5 85- BUTTON (JOY_RIGHT) : PB2 86- BUTTON (JOY_UP) : PB10 87- LED (DOWN BLUE) : PA15 88- LED (LEFT ORANGE) : PB1 89- LED (UP RED) : PB5 90- LED (RIGHT GREEN) : PB7 91- USB DM : PA11 92- USB DP : PA12 93- UCPD CC2 : PB4 94- UCPD CC1 : PB6 95 96For more details please refer to `B-G474E-DPOW1 Discovery board User Manual`_. 97 98Programming and Debugging 99************************* 100 101The B-G474E-DPOW1 Discovery board includes an ST-LINK/V3E embedded debug tool interface. 102 103Applications for the ``b_g474e_dpow1`` board configuration can be built and 104flashed in the usual way (see :ref:`build_an_application` and 105:ref:`application_run` for more details). 106 107Flashing 108======== 109 110The board is configured to be flashed using west `STM32CubeProgrammer`_ runner, 111so its :ref:`installation <stm32cubeprog-flash-host-tools>` is required. 112 113.. code-block:: console 114 115 $ west flash 116 117Flashing an application to the B_G474E_DPOW1 118-------------------------------------------- 119 120Here is an example for the :zephyr:code-sample:`blinky` application. 121 122.. zephyr-app-commands:: 123 :zephyr-app: samples/basic/blinky 124 :board: b_g474e_dpow1 125 :goals: build flash 126 127You will see the LED blinking every second. 128 129Debugging 130========= 131 132You can debug an application in the usual way. Here is an example for the 133:zephyr:code-sample:`hello_world` application. 134 135.. zephyr-app-commands:: 136 :zephyr-app: samples/hello_world 137 :board: b_g474e_dpow1 138 :maybe-skip-config: 139 :goals: debug 140 141References 142********** 143 144.. target-notes:: 145 146.. _B-G474E-DPOW1 website: 147 https://www.st.com/en/evaluation-tools/b-g474e-dpow1.html 148 149.. _STM32G4 reference manual: 150 https://www.st.com/resource/en/reference_manual/rm0440-stm32g4-series-advanced-armbased-32bit-mcus-stmicroelectronics.pdf 151 152.. _B-G474E-DPOW1 Discovery board User Manual: 153 https://www.st.com/resource/en/user_manual/um2577-discovery-kit-with-stm32g474re-mcu-stmicroelectronics.pdf 154 155.. _G474RE on www.st.com: 156 https://www.st.com/en/microcontrollers-microprocessors/stm32g474re.html 157 158.. _STM32CubeProgrammer: 159 https://www.st.com/en/development-tools/stm32cubeprog.html 160
