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stm32samples/F0-nolib/usbcan_relay
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Edward Emelianov f554e66e24 usbcan_relay works!
2021-07-24 15:17:00 +03:00
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kicad
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adc.c
usbcan_relay works!
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adc.h
usbcan_relay works!
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buttons.c
usbcan_relay works!
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buttons.h
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can.c
usbcan_relay works!
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can.h
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canproto.c
usbcan_relay works!
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canproto.h
usbcan_relay works!
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hardware.c
usbcan_relay works!
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hardware.h
usbcan_relay works!
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main.c
usbcan_relay works!
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Makefile
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proto.c
usbcan_relay works!
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proto.h
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Readme.md
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usb_defs.h
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usb_lib.c
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usb_lib.h
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usb.c
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usb.h
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usbcan.bin
usbcan_relay works!
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Readme.md

CAN/USB management of 2 relays and some other things

The device can also work as USB-CAN converter.

CAN protocol is quite simple. The node receives data to selected CAN ID, transmission done with the ID = CANID + 0x100.

Pinout:

  • PA0/1 - Relay0/1
  • PA2..5 - Button0..3 (user buttons)
  • PA6/7 - ADC inputs through resistive divider (0..5 and 0..12V)
  • PA8..10 - PWM0..2 outputs (opendrain through SI2300, 5 or 12V)
  • PA13/14 - SWD; the SWD pin +3.3V connected through 22Ohm resistor
  • PA11. PA12 - USB DM/DP
  • PB0..PB7 - CAN ID
  • PB8, PB9 - CAN Rx/Tx
  • PB12..15 - LED0..3 outputs (direct outputs without any protection!!!)

The pins LEDr0 and LEDr1 are indicated relay works (12V through 2.2kOhm resistor)