| .. _it82xx2_evb: |
| |
| ITE IT82XX2 series |
| ###################### |
| |
| Overview |
| ******** |
| |
| The IT82XX2 is a 32-bit RISC-V microcontroller. |
| And a highly integrated embedded controller with system functions. |
| It is suitable for mobile system applications. The picture below is |
| the IT82202 development board (also known as it82xx2_evb) and its debug card. |
| |
| .. figure:: it82xx2_evb_and_debug_card.jpg |
| :align: center |
| :alt: IT82202 EVB |
| |
| To find out more about ITE, visit our World Wide Web at:`ITE's website`_ |
| |
| Hardware |
| ******** |
| The IT82XX2 series contains different chip types(ex, it82202, it82302), |
| and they support different hardware features. |
| Listing the IT82202 hardware features as following: |
| |
| - RISC-V RV32IMAFC instruction set |
| - 4KB instruction cache size |
| - 256KB SRAM in total |
| - Built-in 32.768 kHz clock generator |
| - Embedded Flash, 512K/1024K-byte e-flash |
| - eSPI, SSPI, SPI slave, BRAM, KBC, PECI, UART |
| - GPIO, PWM, ADC, INTC, WUC, Timer, Watchdog, KB scan, JTAG |
| - Support 6 Voltage Comparator |
| - Support Cryptographic Engine |
| - 6 SMBus channels, with 6 DMA controller, compatible with I2C |
| - USB 2.0 Full-speed Controller |
| - USB Type-c CC Logic |
| - USB Power Delivery |
| |
| |
| Supported Features |
| ================== |
| currently supports the following hardware features: |
| |
| .. list-table:: Supported Features |
| :header-rows: 1 |
| :widths: auto |
| |
| * - Interface |
| - Controller |
| - Driver/Component |
| * - NVIC |
| - on-chip |
| - interrupt controller |
| * - FLASH |
| - on-chip |
| - flash controller |
| * - PINCTRL |
| - on-chip |
| - pin controller |
| * - ESPI |
| - on-chip |
| - espi |
| * - PECI |
| - on-chip |
| - peci |
| * - UART |
| - on-chip |
| - serial |
| * - GPIO |
| - on-chip |
| - gpio |
| * - PWM |
| - on-chip |
| - pwm |
| * - ADC |
| - on-chip |
| - adc |
| * - TIMER |
| - on-chip |
| - timer |
| * - WATCHDOG |
| - on-chip |
| - watchdog |
| * - KSCAN |
| - on-chip |
| - kscan |
| * - SENSOR |
| - on-chip |
| - voltage comparator |
| * - I2C |
| - on-chip |
| - i2c |
| |
| |
| Other hardware features are not currently supported by Zephyr. |
| |
| The default configuration can be found in the |
| :zephyr_file:`boards/riscv/it82xx2_evb/it82xx2_evb_defconfig` Kconfig file. |
| |
| Programming and debugging on it82202 |
| ************************************ |
| |
| In order to upload the application to the device, |
| you'll need our flash tool and Download board. |
| You can get them at: `ITE's website`_. |
| |
| Wiring |
| ======= |
| #. Connect the Download Board to your host computer using the USB cable. |
| |
| #. Connect the it82xx2_evb to the evolution motherboard. |
| |
| #. Connect the Download Board J5 to J41 on the evolution motherboard. |
| |
| #. Connect the USB to UART wire to J33 on the evolution motherboard. |
| |
| .. image:: it82xx2_evb_wiring.jpg |
| :align: center |
| :alt: it82xx2_evb wiring |
| |
| .. note:: Be careful during connection! |
| Use separate wires to connect I2C pins with pins on the it82xx2_evb board. |
| Wiring connection is described in the table below. |
| |
| +-------------+---------------+ |
| | J5 | it82xx2_evb | |
| | Connector | J41 Connector | |
| +=============+===============+ |
| | 2 | E0 | |
| +-------------+---------------+ |
| | 3 | E7 | |
| +-------------+---------------+ |
| | 4 | GND | |
| +-------------+---------------+ |
| |
| For USB to UART cable, connect the evolution motherboard as below: |
| |
| +-------------+---------------+ |
| | USB to UART | Evolution | |
| | cable | motherboard | |
| | | J33 Connector | |
| +=============+===============+ |
| | RX | B0 | |
| +-------------+---------------+ |
| | TX | B1 | |
| +-------------+---------------+ |
| | GND | GND | |
| +-------------+---------------+ |
| |
| Building |
| ======== |
| |
| #. Build :ref:`hello_world` application as you would normally do |
| (see :`Zephyr Getting Started Guide`_):. |
| |
| .. zephyr-app-commands:: |
| :board: it82xx2_evb |
| :zephyr-app: samples/hello_world |
| :goals: build |
| |
| #. The file :file:`zephyr.bin` will be created by west. |
| |
| Flashing |
| ======== |
| |
| Windows |
| -------- |
| |
| Use the winflash tool to program a zephyr application |
| to the it82xx2 board flash. |
| |
| #. Open the winflash tool and make sure the order you open the switch is right. |
| First, turn on the Download board switch. |
| Second, turn on the it82xx2_evb board switch. |
| Then, configure your winflash tool like below. |
| |
| .. figure:: WinFlashTool_P2.jpg |
| :align: center |
| |
| .. figure:: WinFlashTool_P4.jpg |
| |
| #. Using the winflash tool flash ``zephyr.bin`` into your ITE board. |
| First, click the ``Load`` button and select your ``zephyr.bin`` file. |
| Second, click ``run`` to flash the image into board. |
| |
| .. figure:: WinFlashTool_P3.jpg |
| :align: center |
| |
| #. At this point, you have flashed your image into ITE board and |
| it will work if you turn on the ITE board. You can use a terminal program |
| to verify flashing worked correctly. |
| |
| For example, open device manager to find the USB Serial Port(COM4) and use your |
| terminal program to connect it(Speed: 115200). |
| |
| .. figure:: WinFlashTool_P1.jpg |
| :align: center |
| |
| #. Turn on the it82xx2_evb board switch, you should see ``"Hello World! it82xx2_evb"`` |
| sent by the board. If you don't see this message, press the Reset button and the |
| message should appear. |
| |
| Ubuntu |
| -------- |
| |
| #. Run your favorite terminal program to listen for output. |
| Under Linux the terminal should be :code:`/dev/ttyUSB0`. Do not close it. |
| |
| For example: |
| |
| .. code-block:: console |
| |
| $ minicom -D /dev/ttyUSB0 -b 115200 |
| |
| #. Open a second terminal window and use the Linux flash tool to flash your board. |
| |
| .. code-block:: console |
| |
| $ sudo ~/itetool/ite -f build/zephyr/zephyr.bin |
| |
| .. note:: The source code of ITE tool can be downloaded here: |
| https://www.ite.com.tw/uploads/product_download/itedlb4-linux-v106.tar.bz2 |
| |
| #. Split first and second terminal windows to view both of them. |
| You should see ``"Hello World! it82xx2_evb"`` in the first terminal window. |
| If you don't see this message, press the Reset button and the message should appear. |
| |
| Debugging |
| ========= |
| |
| it82xx2_evb board can be debugged by connecting USB to UART. We can write commands and |
| read messages through minicom in the Ubuntu terminal. |
| |
| Troubleshooting |
| =============== |
| |
| #. If the flash tool reports a failure, re-plug the 8390 Download board or |
| power cycle the it82xx2_evb board and try again. |
| |
| References |
| ========== |
| |
| .. target-notes:: |
| |
| .. _ITE's website: https://www.ite.com.tw/zh-tw/product/view?mid=169 |
| .. _Zephyr Getting Started Guide: https://docs.zephyrproject.org/latest/getting_started/index.html |
