| .. zephyr:board:: max78000fthr |
| |
| Overview |
| ******** |
| The MAX78000FTHR is a rapid development platform to help engineers quickly implement ultra low-power, artificial |
| intelligence (AI) solutions using the MAX78000 Arm® Cortex®-M4F processor with an integrated Convolutional Neural Network |
| accelerator. The board also includes the MAX20303 PMIC for battery and power management. The form factor is 0.9in x 2.6in |
| dual-row header footprint that is compatible with Adafruit Feather Wing peripheral expansion boards. The board includes a |
| variety of peripherals, such as a CMOS VGA image sensor, digital microphone, low-power stereo audio CODEC, 1MB QSPI |
| SRAM, micro SD card connector, RGB indicator LED, and pushbutton. The MAX78000FTHR provides a poweroptimized flexible |
| platform for quick proof-of-concepts and early software development to enhance time to market. |
| |
| The Zephyr port is running on the MAX78000 MCU. |
| |
| Hardware |
| ******** |
| |
| - MAX78000 MCU: |
| |
| - Dual-Core, Low-Power Microcontroller |
| |
| - Arm Cortex-M4 Processor with FPU up to 100MHz |
| - 512KB Flash and 128KB SRAM |
| - Optimized Performance with 16KB Instruction Cache |
| - Optional Error Correction Code (ECC-SEC-DED) for SRAM |
| - 32-Bit RISC-V Coprocessor up to 60MHz |
| - Up to 52 General-Purpose I/O Pins |
| - 12-Bit Parallel Camera Interface |
| - One I2S Master/Slave for Digital Audio Interface |
| |
| - Neural Network Accelerator |
| |
| - Highly Optimized for Deep Convolutional Neural Networks |
| - 442k 8-Bit Weight Capacity with 1,2,4,8-Bit Weights |
| - Programmable Input Image Size up to 1024 x 1024 pixels |
| - Programmable Network Depth up to 64 Layers |
| - Programmable per Layer Network Channel Widths up to 1024 Channels |
| - 1 and 2 Dimensional Convolution Processing |
| - Streaming Mode |
| - Flexibility to Support Other Network Types, Including MLP and Recurrent Neural Networks |
| |
| - Power Management Maximizes Operating Time for Battery Applications |
| |
| - Integrated Single-Inductor Multiple-Output (SIMO) Switch-Mode Power Supply (SMPS) |
| - 2.0V to 3.6V SIMO Supply Voltage Range |
| - Dynamic Voltage Scaling Minimizes Active Core Power Consumption |
| - 22.2μA/MHz While Loop Execution at 3.0V from Cache (CM4 Only) |
| - Selectable SRAM Retention in Low-Power Modes with Real-Time Clock (RTC) Enabled |
| |
| - Security and Integrity |
| |
| - Available Secure Boot |
| - AES 128/192/256 Hardware Acceleration Engine |
| - True Random Number Generator (TRNG) Seed Generator |
| |
| Supported Features |
| ================== |
| |
| .. zephyr:board-supported-hw:: |
| |
| Connections and IOs |
| =================== |
| |
| J8 Pinout |
| ********** |
| |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | Pin | Name | Description | |
| +=========+==========+=================================================================================================+ |
| | 1 | RST | Master Reset Signal | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 2 | 3V3 | 3.3V Output. Typically used to provide 3.3V to peripherals connected to the expansion headers. | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 3 | 1V8 | 1.8V Output. Typically used to provide 1.8V to peripherals connected to the expansion headers. | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 4 | GND | Ground | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 5 | P2_3 | GPIO or Analog Input (AIN3 channel). | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 6 | P2_4 | GPIO or Analog Input (AIN4 channel). | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 7 | P1_1 | GPIO or UART2 Tx signal | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 8 | P1_0 | GPIO or UART2 Rx signal | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 9 | MPC1 | GPIO controlled by PMIC through I2C interface. Open drain or push-pull programmable | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 10 | MPC2 | GPIO controlled by PMIC through I2C interface. Open drain or push-pull programmable | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 11 | P0_7 | GPIO or QSPI0 clock signal. Shared with SD card and on-board QSPI SRAM | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 12 | P0_5 | GPIO or QSPI0 MOSI signal. Shared with SD card and on-board QSPI SRAM | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 13 | P0_6 | GPIO or QSPI0 MISO signal. Shared with SD card and on-board QSPI SRAM | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 14 | P2_6 | GPIO or LPUART Rx signal | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 15 | P2_7 | GPIO or LPUART Tx signal | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| | 16 | GND | Ground | |
| +---------+----------+-------------------------------------------------------------------------------------------------+ |
| |
| J4 Pinout |
| ********** |
| |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | Pin | Name | Description | |
| +=========+==========+===========================================================================================================+ |
| | 1 | SYS | SYS Switched Connection to the Battery. This is the primary system power supply and automatically | |
| | | | switches between the battery voltage and the USB supply when available. | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 2 | PWR | Turns off the PMIC if shorted to Ground for 13 seconds. Hard power-down button. | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 3 | VBUS | USB VBUS Signal. This can be used as a 5V supply when connected to USB. This pin can also be | |
| | | | used as an input to power the board. | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 4 | P1_6 | GPIO | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 5 | MPC3 | GPIO controlled by PMIC through the I2C interface. Open drain or push-pull programmable. | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 6 | P0_9 | GPIO or QSPI0 SDIO3 signal. Shared with SD card and on-board QSPI SRAM. | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 7 | P0_8 | GPIO or QSPI0 SDIO2 signal. Shared with SD Card and on-board QSPI SRAM. | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 8 | P0_11 | GPIO or QSPI0 slave select signal | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 9 | P0_19 | GPIO | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 10 | P3_1 | GPIO or Wake-up signal. This pin is 3.3V only. | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 11 | P0_16 | GPIO or I2C1 SCL signal. An on-board level shifter allows selecting 1.8V or 3.3V operation through | |
| | | | R15 or R20 resistors. Do not populate both. | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| | 12 | P0_17 | GPIO or I2C1 SDA signal. An on-board level shifter allows selecting 1.8V or 3.3V operation through | |
| | | | R15 or R20 resistors. Do not populate both. | |
| +---------+----------+-----------------------------------------------------------------------------------------------------------+ |
| |
| Programming and Debugging |
| ************************* |
| |
| .. zephyr:board-supported-runners:: |
| |
| Flashing |
| ======== |
| |
| The MAX32625 microcontroller on the board is preprogrammed with DAPLink firmware. |
| It allows debugging and programming of the MAX78000 Arm core over USB. |
| |
| Once the debug probe is connected to your host computer, then you can simply run the |
| ``west flash`` command to write a firmware image into flash. To perform a full erase, |
| pass the ``--erase`` option when executing ``west flash``. |
| |
| .. note:: |
| |
| This board uses OpenOCD as the default debug interface. You can also use |
| a Segger J-Link with Segger's native tooling by overriding the runner, |
| appending ``--runner jlink`` to your ``west`` command(s). The J-Link should |
| be connected to the standard 2*5 pin debug connector (JH5) using an |
| appropriate adapter board and cable. |
| |
| Debugging |
| ========= |
| |
| Please refer to the `Flashing`_ section and run the ``west debug`` command |
| instead of ``west flash``. |
| |
| References |
| ********** |
| |
| - `MAX78000FTHR web page`_ |
| |
| .. _MAX78000FTHR web page: |
| https://www.analog.com/en/resources/evaluation-hardware-and-software/evaluation-boards-kits/max78000fthr.html |
