| .. _max32655_fthr: |
| |
| MAX32655FTHR |
| ############ |
| |
| Overview |
| ******** |
| The MAX32655FTHR is a rapid development platform to help engineers quickly implement |
| ultra low-power wireless solutions using MAX32655 Arm© Cortex®-M4F and Bluetooth® 5.2 Low Energy (LE). |
| The board also includes the MAX20303 PMIC for battery and power management. |
| The form factor is a small 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 digital microphone, lowpower stereo audio CODEC, 128MB QSPI Flash, micro SD card connector, |
| RGB indicator LED, and pushbutton. |
| The MAX32655FTHR provides a power-optimized flexible platform for quick proof-of-concepts and |
| early software development to enhance time to market. Go to |
| https://www.analog.com/MAX32655FTHR to get started developing with this board. |
| |
| |
| The Zephyr port is running on the MAX32655 MCU. |
| |
| .. image:: img/max32655fthr_img1.jpg |
| :align: center |
| :alt: MAX32655FTHR Front |
| |
| .. image:: img/max32655fthr_img2.jpg |
| :align: center |
| :alt: MAX32655FTHR Front Modules |
| |
| .. image:: img/max32655fthr_img3.jpg |
| :align: center |
| :alt: MAX32655FTHR Back |
| |
| Hardware |
| ******** |
| |
| - MAX32655 MCU: |
| |
| - Ultra-Low-Power Wireless Microcontroller |
| - Internal 100MHz Oscillator |
| - Flexible Low-Power Modes with 7.3728MHz System Clock Option |
| - 512KB Flash and 128KB SRAM (Optional ECC on One 32KB SRAM Bank) |
| - 16KB Instruction Cache |
| - Bluetooth 5.2 LE Radio |
| - Dedicated, Ultra-Low-Power, 32-Bit RISC-V Coprocessor to Offload Timing-Critical Bluetooth Processing |
| - Fully Open-Source Bluetooth 5.2 Stack Available |
| - Supports AoA, AoD, LE Audio, and Mesh |
| - High-Throughput (2Mbps) Mode |
| - Long-Range (125kbps and 500kbps) Modes |
| - Rx Sensitivity: -97.5dBm; Tx Power: +4.5dBm |
| - Single-Ended Antenna Connection (50Ω) |
| - Power Management Maximizes Battery Life |
| - 2.0V to 3.6V Supply Voltage Range |
| - Integrated SIMO Power Regulator |
| - Dynamic Voltage Scaling (DVS) |
| - 23.8μA/MHz Active Current at 3.0V |
| - 4.4μA at 3.0V Retention Current for 32KB |
| - Selectable SRAM Retention + RTC in Low-Power Modes |
| - Multiple Peripherals for System Control |
| - Up to Two High-Speed SPI Master/Slave |
| - Up to Three High-Speed I2C Master/Slave (3.4Mbps) |
| - Up to Four UART, One I2S Master/Slave |
| - Up to 8-Input, 10-Bit Sigma-Delta ADC 7.8ksps |
| - Up to Four Micro-Power Comparators |
| - Timers: Up to Two Four 32-Bit, Two LP, TwoWatchdog Timers |
| - 1-Wire® Master |
| - Up to Four Pulse Train (PWM) Engines |
| - RTC with Wake-Up Timer |
| - Up to 52 GPIOs |
| - Security and Integrity |
| - Available Secure Boot |
| - TRNG Seed Generator |
| - AES 128/192/256 Hardware Acceleration Engine |
| |
| - External devices connected to the MAX32655FTHR: |
| |
| - Audio Stereo Codec Interface |
| - Digital Microphone |
| - PMIC and Battery Charger |
| - A 128Mb QSPI flash |
| - Micro SDCard Interface |
| - RGB LEDs |
| - Push Buttons |
| |
| Supported Features |
| ================== |
| |
| Below are the interfaces supported by Zephyr on MAX32655FTHR. |
| |
| +-----------+------------+-------------------------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+=====================================+ |
| | NVIC | on-chip | nested vector interrupt controller | |
| +-----------+------------+-------------------------------------+ |
| | SYSTICK | on-chip | systick | |
| +-----------+------------+-------------------------------------+ |
| | CLOCK | on-chip | clock and reset control | |
| +-----------+------------+-------------------------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+-------------------------------------+ |
| | UART | on-chip | serial | |
| +-----------+------------+-------------------------------------+ |
| |
| Push Buttons |
| ************ |
| There are six pushbuttons on the MAX32655FTHR board |
| |
| SW1 |
| === |
| PMIC Power Button, when the board is powered on state, pressing |
| this button for 12 seconds performs a hard powerdown. |
| When the board is in a powered-off state, pressing this button powers on the board. |
| This button can also be read by MAX32655 firmware, PMIC_PFN2 signal connected to Port 0.13 |
| is a buffered input of the button status. When the button is pressed, this signal goes to a logic-low |
| state. |
| |
| SW2 |
| === |
| User-programmable function button connected to |
| MAX32655 Port 0.2 through a debouncer IC. |
| |
| SW3 |
| === |
| User-programmable function button connected to |
| MAX32655 Port 0.3 through a debouncer IC. |
| |
| SW4 |
| === |
| Wake-up button connected to MAX32655 Port 3.1. |
| |
| SW5 |
| === |
| Resets the MAX32655 through RSTN input of the MAX32655. |
| |
| SW6 |
| === |
| DAPLink adapter button. Keep this button |
| pressed while applying power to the board to |
| put the MAX32625 DAPLink adapter on board |
| to MAINTENANCE mode for DAPLink firmware |
| updates. |
| |
| |
| LEDs |
| **** |
| There are three RGB LEDs on the MAX32655FTHR board |
| |
| LED1 (D1) |
| ========= |
| Connected to the MAX32655FTHR GPIO ports. |
| This LED can be controlled by user firmware. |
| Port 0.18: Red color |
| Port 0.19: Green color |
| Port 0.26: Blue color |
| |
| LED2 (D2) |
| ========= |
| Connected to MAX20303 PMIC LEDx outputs. |
| These LEDs can be controlled through I2C commands. |
| They also can be configured as charge |
| status indicators by issuing I2C commands. |
| |
| LED3 (D3) |
| ========= |
| DAPLink adapter MAX32625 status LED. |
| Controlled by the DAPLink adapter and cannot be |
| used as a user LED. |
| |
| Programming and Debugging |
| ************************* |
| |
| Flashing |
| ======== |
| |
| The MAX32625 microcontroller on the board is flashed with DAPLink firmware at the factory. |
| It allows debugging and flashing the MAX32655 Arm Core over USB. |
| |
| Once the USB cable is connected to your host computer, then you can simply run the |
| ``west flash`` command to write a firmware image into flash. |
| |
| Debugging |
| ========= |
| |
| Please refer to the `Flashing`_ section and run the ``west debug`` command |
| instead of ``west flash``. |
| |
| References |
| ********** |
| |
| - `MAX32655FTHR web page`_ |
| |
| .. _MAX32655FTHR web page: |
| https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/max32655fthr.html |
