openmv_h7_bsp

openmv_h7_bsp

A board support package for experimenting with rust on the OpenMV H7 open hardware machine vision board.

Embedded Examples

The examples are designed to be used with a debug probe that supports J-Link / RTT. We provide a couple different ways to run these:

• With the Segger tools (this is the default configuration for examples)
• With probe-run (This may not yet work.)

With probe-run installed

• Simply run the example (see below) with a JLink debug probe attached to your PX4FLOW
• If you have problems, edit config to ensure that the probe-run runner is selected

With segger tools installed

• Edit config to select the segger.gdb runner
• In one shell run: ./start_gdb_server_jlink.sh
• In another shell run: JLinkRTTClient
• Then run your choice of examples

Running examples

cargo run  --example blinky 

cargo run  --example play --features  rttdebug,mt9v034

Status

This is work-in-progress

• Interoperates with the default Micropython bootloader. You can reinstall the micropython firmware easily via USB from the OpenMV IDE.
• Debug build runs on board
• Example with LED blinky
• Support for running examples with probe-run (WIP)
• Camera reading example
• SDIO card support

Clocks

• 12 MHz high speed external (HSE) clock crystal

• LSE TBD

Notes on buses

I2C Buses

Format: (SCL, SDA)

• (PB8, PB9) I2C1 is used for configuring camera sensor
• Other i2c TBD

SPI Buses

Format: (SCK, MISO, MOSI)

• TBD

GPIO

• TBD

USB OTG

• TBD

LEDs

• LEDs r,g,b = PC0, PC1, PC2 on OpenMV H7
• IR led on PE2

UARTs / USARTs

Format: (RX, TX) , (CTS, RTS)

• TBD

DCMI (Parallel Camera Data Interface)

• Control pins: PA6 (DCMI_PIXCK), PA4 (DCMI_HSYNC), PB7 (DCMI_VSYNC)
• Data Pins D0-D7: PC6, PC7, PE0, PE1, PE4, PB6, PE5, PE6
• External clock provided to camera on PA8. This is required to enable the camera.

External Accessories Support

• TBD

Resources

• OpenMV H7 base schematic

License

BSD-3-Clause, see LICENSE file.