| .. zephyr:board:: linum |
| |
| Overview |
| ******** |
| Linum is a development board released by Witte Tenology in 2023, and it was developed around the |
| STM32H753BI microcontroller. The board has 2 expansion connectors used by the LCD display with |
| touchscreen and another for access to other peripherals of microcontroller. Also it brings plenty |
| of communications interfaces like UART with RS232 and RS485 capabillities, CAN bus compatible to |
| FD standard, and networking over Ethernet. |
| |
| Hardware |
| ******** |
| |
| The board features: |
| - 8 to 52V power supply |
| - SWD Pins for use as STLink (Pin header) and TC2030-IDC 6-Pin Tag-Connect Plug-of-Nails™ Connector |
| - Crystal for HS 25MHz |
| - Crystal for RTC 32.768KHz |
| - 1 UART serial for debug |
| - 1 Led RGB |
| - 1 Buzzer without internal oscillator |
| - 1 Mono audio up to 3W |
| - 1 Ethernet 10/100 |
| - 1 MicroSD connector supporting 1 or 4-bit bus |
| - 1 USB 2.0 Host/Device |
| - 1 EEPROM memory with 512K bits |
| - 1 External SRAM memory with 8MB |
| - 1 NOR memory with 16MB |
| - 2 On-board RS232 Transceiver with RTS/CTS |
| - 2 On-board RS485 Transceiver |
| - 2 On-board CAN-FD Transceiver |
| |
| Expansion connector 1 features: |
| - 1 Display RBG 888 |
| - 1 Capacitive Touchscreen sensor |
| |
| Expansion connector 2 features. |
| - 1 SPI |
| - 1 I2C |
| - 1 One Wire |
| - 2 DACs |
| - 6 PWM Channels |
| - 10 ADCs |
| |
| More information about the board, can be found at the `Witte Linum website`_. |
| |
| Supported Features |
| ================== |
| |
| .. zephyr:board-supported-hw:: |
| |
| Default Zephyr Peripheral Mapping: |
| ---------------------------------- |
| |
| |
| BOARD-LEDs |
| ---------- |
| |
| The LINUM-STM32H753BI has 3 software controllable LEDs. |
| |
| ======= ===== |
| LED RGB PINS |
| ======= ===== |
| LED_R PG2 |
| LED_G PG3 |
| LED_B PB2 |
| ======= ===== |
| |
| UART/USART |
| ---------- |
| |
| The LINUM-STM32H753BI used the USART1 for serial console. |
| |
| USART1 |
| ------ |
| |
| ====== ===== |
| USART1 PINS |
| ====== ===== |
| TX PB14 |
| RX PB15 |
| ====== ===== |
| |
| The LINUM-STM32H753BI board has two on-board RS-232 transceiver connected to USART2 and USART3. |
| |
| ====== ===== |
| USART2 PINS |
| ====== ===== |
| TXD PD5 |
| RXD PD6 |
| CTS PD3 |
| RTS PD4 |
| ====== ===== |
| |
| ====== ===== |
| USART3 PINS |
| ====== ===== |
| TXD PB10 |
| RXD PB11 |
| CTS PD11 |
| RTS PD12 |
| ====== ===== |
| |
| The LINUM-STM32H753BI board has two on-board RS-485 transceiver connected to USART4 and USART6. |
| |
| ====== ===== |
| UART4 PINS |
| ====== ===== |
| TXD PB9 |
| RXD PB8 |
| DE PA15 |
| ====== ===== |
| |
| ====== ===== |
| USART6 PINS |
| ====== ===== |
| TXD PC6 |
| RXD PC7 |
| DE PG12 |
| ====== ===== |
| |
| SDMMC |
| ----- |
| |
| The LINUM-STM32H753BI has one SDCard slot connected as below: |
| |
| ========== ===== |
| SDMMC1 PINS |
| ========== ===== |
| SDMMC_D0 PC8 |
| SDMMC_D1 PC9 |
| SDMMC_D2 PC10 |
| SDMMC_D3 PC11 |
| SDMMC_DK PC12 |
| ========== ===== |
| |
| =============== ===== |
| GPIO PINS |
| =============== ===== |
| SDCARD_DETECTED PG7 |
| SDCARD_PWR_EN PD7 |
| =============== ===== |
| |
| ETHERNET |
| -------- |
| |
| The LINUM-STM32H753BI has a ethernet connection using the transceiver KSZ8081RNACA. |
| |
| ============ ===== |
| ETH PINS |
| ============ ===== |
| ETH_REF_CLK PA1 |
| ETH_MDIO PA2 |
| ETH_CRS_DV PA7 |
| ETH_MDC PC1 |
| ETH_RXD0 PC4 |
| ETH_RXD1 PC5 |
| ETH_TX_EN PG11 |
| ETH_TXD0 PG13 |
| ETH_TXD1 PG14 |
| ETH_CLK PA8 |
| ETH_RESET PI4 |
| ============ ===== |
| |
| CAN-FD |
| ------ |
| |
| The LINUM-STM32H753BI board has two on-board CAN-FD transceiver connected to FDCAN1 and FDCAN2. |
| |
| ====== ===== |
| FDCAN1 PINS |
| ====== ===== |
| TXD PH13 |
| RXD PH14 |
| STD PI2 |
| ====== ===== |
| |
| ====== ===== |
| FDCAN2 PINS |
| ====== ===== |
| TXD PB13 |
| RXD PB12 |
| STD PE3 |
| ====== ===== |
| |
| USB |
| --- |
| |
| The LINUM-STM32H753BI has one usb port. |
| |
| ========= ===== |
| USB PINS |
| ========= ===== |
| USB_VBUS PA9 |
| USB_N PA11 |
| USB_P PA12 |
| USB_EN PI12 |
| USB_FLT PI13 |
| ========= ===== |
| |
| I2C3 |
| ---- |
| The LINUM-STM32H753BI connects the EEPROM memory and the touchscreen sensor to I2C3. |
| |
| ====== ===== |
| I2C3 PINS |
| ====== ===== |
| SCL PH7 |
| SDA PH8 |
| ====== ===== |
| |
| External SDRAM |
| -------------- |
| The LINUM-STM32H753BI has a external SDRAM with 8Mbytes connected to FMC peripheral. |
| |
| =========== ===== |
| FMC PINS |
| =========== ===== |
| FMC_A0 PF0 |
| FMC_A1 PF1 |
| FMC_A2 PF2 |
| FMC_A3 PF3 |
| FMC_A4 PF4 |
| FMC_A5 PF5 |
| FMC_A6 PF12 |
| FMC_A7 PF13 |
| FMC_A8 PF14 |
| FMC_A9 PF15 |
| FMC_A10 PG0 |
| FMC_A11 PG1 |
| FMC_BA0 PG4 |
| FMC_BA1 PG5 |
| FMC_D0 PD14 |
| FMC_D1 PD15 |
| FMC_D2 PD0 |
| FMC_D3 PD1 |
| FMC_D4 PE7 |
| FMC_D5 PE8 |
| FMC_D6 PE9 |
| FMC_D7 PE10 |
| FMC_D8 PE11 |
| FMC_D9 PE12 |
| FMC_D10 PE13 |
| FMC_D11 PE14 |
| FMC_D12 PE15 |
| FMC_D13 PD8 |
| FMC_D14 PD9 |
| FMC_D15 PD10 |
| FMC_NBL0 PE0 |
| FMC_NBL1 PE1 |
| FMC_SDCKE0 PC3 |
| FMC_SDCLK PG8 |
| FMC_SDNCAS PG15 |
| FMC_SDNEO PC2 |
| FMC_SDNRAS PF11 |
| FMC_SDNWE PC0 |
| =========== ===== |
| |
| LCD |
| --- |
| The LINUM-STM32H753BI use the LTDC to support one LCD with RGB connection. |
| |
| ============= ===== |
| LTDC PINS |
| ============= ===== |
| LTDC_B0 PJ12 |
| LTDC_B1 PJ13 |
| LTDC_B2 PJ14 |
| LTDC_B3 PJ15 |
| LTDC_B4 PK3 |
| LTDC_B5 PK4 |
| LTDC_B6 PK5 |
| LTDC_B7 PK6 |
| LTDC_CLK PI14 |
| LTDC_DE PK7 |
| LTDC_G0 PJ7 |
| LTDC_G1 PJ8 |
| LTDC_G2 PJ9 |
| LTDC_G3 PJ10 |
| LTDC_G4 PJ11 |
| LTDC_G5 PK0 |
| LTDC_G6 PK1 |
| LTDC_G7 PK2 |
| LTDC_HSYNC PI10 |
| LTDC_R0 PI15 |
| LTDC_R1 PJ0 |
| LTDC_R2 PJ1 |
| LTDC_R3 PJ2 |
| LTDC_R4 PJ3 |
| LTDC_R5 PJ4 |
| LTDC_R6 PJ5 |
| LTDC_R7 PJ6 |
| LTDC_VSYNC PI9 |
| PWM_BACKLIGHT PH6 |
| ============= ===== |
| |
| System Clock |
| ------------ |
| |
| Linum H753ZI System Clock could be driven by an internal or external |
| oscillator, as well as the main PLL clock. By default, the System clock is |
| driven by the PLL clock at 480MHz, driven by an 25MHz high-speed external clock. |
| |
| |
| Programming and Debugging |
| ************************* |
| |
| .. zephyr:board-supported-runners:: |
| |
| Applications for the ``linum`` board configuration can be built and |
| flashed in the usual way (see :ref:`build_an_application` and |
| :ref:`application_run` for more details). |
| |
| .. note:: |
| |
| For debugging or programming Linum you will need to use an external debug |
| debug or flash tool and connect it to the SWD Connnector. JLink or ST-Link |
| probes are examples of out of the box compatible tools. |
| |
| Flashing |
| ======== |
| |
| Flashing an application to the Linum board |
| ------------------------------------------- |
| |
| Here is an example for the :zephyr:code-sample:`hello_world` application. |
| |
| Run a serial host program to connect with your Nucleo board. |
| |
| .. code-block:: console |
| |
| $ minicom -b 115200 -D /dev/ttyACM0 |
| |
| Build and flash the application: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: linum |
| :goals: build flash |
| |
| You should see the following message on the console: |
| |
| .. code-block:: console |
| |
| $ Hello World! linum |
| |
| Debugging |
| ========= |
| |
| You can debug an application in the usual way. Here is an example for the |
| :zephyr:code-sample:`hello_world` application. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: linum |
| :maybe-skip-config: |
| :goals: debug |
| |
| .. _Witte Linum website: |
| https://wittetech.com/ |
