Paul. Can we see that?
I have used pics with the internal CAN module and a can line driver and ones without but with an external microchip mini CAN board and line driver.
I built a Honda CR-Z/Insight Hybrid car MITM control device.
It intercepts and modifies motor control signals allowing the driver to manually control the IMA motor.
It sits in the IMACAN line relaying thousands of OEM messages back and forth and also listens on a separate FCAN line to more messages and control commands.
It uses a 18F26K80 at 64mhz and 3 el-cheapo aliexpress $5 SPI CAN boards.
My code is attached.
IMAC&C is the IMA control MITM device. This uses the cheap CAN boards.
OBDIIC&C is an FCAN device to talk to the car like an OBDII diagnostic tool. This uses the internal pic CAN module.
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