| .. _stm32f3_seco_d23_board: |
| |
| SECO JUNO SBC-D23 (STM32F302) |
| ############################# |
| |
| Overview |
| ******** |
| |
| JUNO (SBC-D23) is a Single Board Computer based on embedded Rockchip PX30 |
| Processor, featuring Quad-Core ARM Cortex-A35 processor. The processor |
| integrates a Mali-G31 GPU with High performance dedicated 2D processor, |
| supporting OpenGL ES 1.1 / 2.0 / 3.2, Vulkan 1.0, OpenCL 2.0 and Open VG 1.1. |
| Embedded VPU is able to support video decoding of the most common coding |
| standard (MPEG-4, H.265/HEVC, H.264, VP8, VC-1). The board is completed with up |
| to 4GB LPDDR4-3200 32-bit bus memory directly soldered on board and one eMMC |
| 5.1 Flash Drive with up to 64GB of capacity. LVDS Single Channel interface and |
| HDMI are supported. The RMII interface and Micrel KSZ8091 Ethernet Transceiver |
| allow the implementation of a Fast Ethernet interface. The networking |
| capabilities can be extended by WiFi+BT M.2 module and external modem module. |
| The audio functionalities are managed by the AudioCodec embedded in the RK-809 |
| PMIC. The JUNO board is completed by a series of connectors with various |
| interfaces (UART, SPI, I2C) managed by the microcontroller STM32F302VCT6. |
| |
| .. image:: img/stm32f3_seco_d23.jpg |
| :align: center |
| :alt: SECO JUNO |
| |
| More information about the board can be found at the |
| `SECO JUNO SBC-D23 website`_. |
| |
| Hardware |
| ******** |
| |
| SECO JUNO SBC-D23 provides the following hardware components: |
| |
| - STM32F302VCT6 |
| - ARM |reg| 32-bit Cortex |reg| -M4 CPU with FPU |
| - 256 KB Flash |
| - 40 KB SRAM |
| - 72 MHz max CPU frequency |
| - 2 User LEDs |
| - 16 GPI |
| - 16 GPO |
| - 4 U(S)ART |
| - Modbus |
| - RS485 |
| - TTL Serial Debug |
| - TTL Serial |
| - 8-channel General Purpose Timers |
| - USB 2.0 full speed interface |
| - CAN |
| - I2C (up to 2) |
| - SPI |
| |
| More information about STM32F302VC can be found here: |
| |
| - `STM32F302VC on www.st.com`_ |
| - `STM32F302xC reference manual`_ |
| |
| Supported Features |
| ================== |
| |
| The Zephyr stm32f3_seco_d23 board configuration supports the following hardware |
| features: |
| |
| +-----------+------------+-------------------------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+=====================================+ |
| | NVIC | on-chip | nested vector interrupt controller | |
| +-----------+------------+-------------------------------------+ |
| | UART | on-chip | serial port-polling; | |
| | | | serial port-interrupt | |
| +-----------+------------+-------------------------------------+ |
| | PINMUX | on-chip | pinmux | |
| +-----------+------------+-------------------------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+-------------------------------------+ |
| | I2C | on-chip | i2c | |
| +-----------+------------+-------------------------------------+ |
| | SPI | on-chip | spi | |
| +-----------+------------+-------------------------------------+ |
| | USB | on-chip | USB device | |
| +-----------+------------+-------------------------------------+ |
| | CAN | on-chip | CAN | |
| +-----------+------------+-------------------------------------+ |
| | IWDG | on-chip | Independent WatchDoG | |
| +-----------+------------+-------------------------------------+ |
| | PWM | on-chip | pwm | |
| +-----------+------------+-------------------------------------+ |
| |
| Other hardware features are not yet supported on Zephyr porting. |
| |
| Pin Mapping |
| =========== |
| |
| SECO-D23 has 6 GPIO controllers. These controllers are |
| responsible for pin muxing, input/output, pull-up, etc. |
| |
| For mode details please refer to `SECO JUNO SBC-D23 board User Manual`_. |
| |
| Default Zephyr Peripheral Mapping: |
| ---------------------------------- |
| |
| .. rst-class:: rst-columns |
| |
| - UART_1_TX : PA9 (debug config for UART_1) |
| - UART_1_RX : PA10 (debug config for UART_1) |
| - UART_1_TX : PC4 (alternate config for UART_1) |
| - UART_1_RX : PC5 (alternate config for UART_1) |
| - UART_2_TX : PD5 |
| - UART_2_RX : PD6 |
| - UART_2_CLK : PD7 |
| - UART_2_CTS : PD3 |
| - UART_2_RTS/DE : PD4 |
| - UART_3_TX : PC10 |
| - UART_3_RX : PC11 |
| - UART_3_CLK : PD10 |
| - UART_3_CTS : PD11 |
| - UART_3_RTS/DE : PD12 |
| - UART_5_TX : PC12 |
| - UART_5_RX : PD2 |
| - I2C1_SCL : PB6 |
| - I2C1_SDA : PB7 |
| - I2C2_SCL : PA9 (alternate config for UART_1) |
| - I2C2_SDA : PA10 (alternate config for UART_1) |
| - SPI1_NSS : PA4 |
| - SPI1_SCK : PB3 |
| - SPI1_MISO : PB4 |
| - SPI1_MOSI : PB5 |
| - SPI2_NSS : PB12 |
| - SPI2_SCK : PB13 |
| - SPI2_MISO : PB14 |
| - SPI2_MOSI : PB15 |
| - CAN1_RX : PB8 |
| - CAN1_TX : PB9 |
| - USB_DM : PA11 |
| - USB_DP : PA12 |
| - LD1 : PD8 |
| - LD2 : PD9 |
| - PWM : PA8 |
| |
| System Clock |
| ============ |
| |
| SECO SBC-D23 System Clock could be driven by internal or external |
| oscillator, as well as main PLL clock. By default System clock is driven |
| by PLL clock at 72 MHz, driven by an external oscillator at 8 MHz. |
| |
| Serial Port |
| =========== |
| |
| SECO SBC-D23 has up to 4 U(S)ARTs. The Zephyr console output |
| is assigned to UART1. Default settings are 115200 8N1. |
| In debug configuration UART1 is connected to the flashing connector CN56. |
| |
| UART2 provides Modbus interface to connector CN28. |
| UART3 provides RS-485 interface to connectors CN57 and CN48. |
| In alternative config, USART2 and USART3 are exposed to connector J2. |
| |
| UART1 (in alternate config) and UART5 are connected to CN32. |
| |
| I2C |
| === |
| SECO SBC-D23 has up to 2 I2Cs. Both are present in connector CN33. |
| I2C2 is available only on boards where DEBUG serial is not connected. |
| |
| USB |
| === |
| SECO SBC-D23 has a USB 2.0 full-speed device interface available through |
| its connector CN31. |
| |
| CAN |
| === |
| SECO SBC-D23 has an onboard CAN transceiver (TJA1051T), and it is |
| connected to both CN29 and CN30. PD0 is connected to EC_CAN_STBY. |
| |
| SPI |
| === |
| SECO SBC-D23 has two SPI lines: SPI1 is an internal SPI line connected to the |
| main processor (Rockchip PX30) and SPI2 is connected to CN39. |
| |
| Programming and Debugging |
| ************************* |
| |
| Flashing |
| ======== |
| |
| Applications for the ``stm32f3_seco_d23`` board configuration can be built and |
| flashed in the usual way (see :ref:`build_an_application` and |
| :ref:`application_run` for more details). |
| |
| Flashing an application to SECO SBC-D23 |
| ------------------------------------------- |
| |
| First, connect the SECO SBC-D23 to your host computer using |
| CN56 connector to an ST-Link. |
| The pinout is (1-8): |
| - VDD |
| - UART1_TX |
| - UART1_RX |
| - BOOT_0 |
| - SWDIO_JTMS |
| - SWCLK_JTCK |
| - EC_RST# |
| - GND |
| |
| Then build and flash your application. |
| |
| Here is an example for the :ref:`hello_world` application. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: stm32f3_seco_d23 |
| :goals: build flash |
| |
| Run a serial host program to connect with your board. |
| |
| .. code-block:: console |
| |
| $ minicom -D /dev/<tty device> |
| |
| Replace <tty_device> with the port where the SBC-D23 board can be |
| found. |
| |
| You should see the following message on the console: |
| |
| .. code-block:: console |
| |
| Hello World! stm32f3_seco_d23 |
| |
| |
| .. _SECO JUNO SBC-D23 website: |
| https://edge.seco.com/juno.html |
| |
| .. _SECO JUNO SBC-D23 board User Manual: |
| https://www.seco.com/Manuals/SBC-D23_Manual.pdf |
| |
| .. _STM32F302VC on www.st.com: |
| http://www.st.com/en/microcontrollers/stm32f302vc.html |
| |
| .. _STM32F302xC reference manual: |
| https://www.st.com/resource/en/reference_manual/rm0365-stm32f302xbcde-and-stm32f302x68-advanced-armbased-32bit-mcus-stmicroelectronics.pdf |
