LPC11C14 - problem during CAN communication

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by mattiad on Fri Oct 24 02:55:59 MST 2014
Dear All,

I've noticed a problem using the LPC11C14 for CAN communication.
Micro is connected to an external TJA1040 driver. If I turn off the suplly voltage for a small period the micro doesn't reset (the 3,3V doesn't drop) but the Driver supply (5V) drops immediately, creating problem with CAN communication. In this case the micro doesn't communicate anymore with CAN ports. Everithing is working well with the micro (UART communication, SPI communication ect.) but the CAN ports don't communicate.
Is there a way to make the micro detecting this ports' block and reset this?

Thank you in advance,