Hello All,
Currently, on LPC11C14, I have the CAN TXD/RXD pins connected to the corresponding UART TXD/RXD pins, and have been using the UART without any issues. The idea was to be able use either the UART or CAN controller.
The datasheet says that the default state of the CAN TXD pin is HIGH, so how is my UART working?
Won't there be a short when the UART TX pin pulls the line down?
Would this setup be an issue if I had to program the chip in ISP mode ?
Thanks,
Satbir
Hi Satbir Sekhon,
To disabling the CAN block, you can reset the CAN block via asset the bit3 in the PRESETCTRL register, then dis-asset the bit 17 in the SYSAHBCLKCTRL register.
Hope this is clear.
Have a great day,
TIC
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Hi Satbir Sekhon,
Thanks for your reply.
My suggestion is disabling another module when one module is active, however you need to do some testing to evaluate the risk.
Have a great day,
TIC
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TIC
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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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