ecat_servo
Open EtherCAT CiA402 servo drive implementation
Project maintained by kubabuda Hosted on GitHub Pages — Theme by mattgraham
AX58100 board rev 2
Again, laundry list of bugs and missing features on current HW was found:
- Port silkscreen labels are reversed, of course. Just compare PCB renders and photos with stickers on RJ45s
- Switch to 4 layer PCB for better noise protection and simplified, cleaner routing
- Differential pairs routing between ESC and RJ45 should really use matched length and impedance
- SPI signal traces should be checked
- adapter for target device, like STMBL, will be needed (with 5V -> 3V adapter and SWD connector for STM32)
- I2C resistors can be 4K7 to simplify BOM
- Add 4K7 pullup resistor to ESC_FUNC pin
- ditch RESET button, or use more common footprint
- rework board layout: RJ45 should be side to side for easier housing design, chassis clearance is to be improved
Things that would be nice for next revision:
- EEP_LOADED and ERR status LEDs: get them on such small board
- ESD protection chip for RJ45 connectors: source anything good and available
STMBL adapter based on that revision:
