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esimon · 2015-07-10

Posted on July 10, 2015 at 23:59I'm using an STM32F0 for a CAN application. I noticed, though, that the MCU doesn't receive the messages that it sends out on the bus. It would be preferable for me to be able to see all of the data on the bus, though...

esimon · 2014-10-10

Posted on October 10, 2014 at 21:18First off, I'm relatively new to microcontroller programming, so please bear with me here.I'm trying to get two-way communication going over a VCP between a device that has an STM32F042 MCU and PuTTY. I've generate...

esimon · 2015-07-14

Posted on July 14, 2015 at 20:18Unfortunately, the F042 only has one CAN peripheral, so I can't do that external feedback. Right now, the ISR also checks the TXOKx bit for the appropriate mailbox. It looks like if automatic retransmission is enabled...

esimon · 2015-07-14

Posted on July 14, 2015 at 19:01It might be worth posting your main function, because if what you posted is all that you're using, the ''USB Device Not Recognized'' error makes perfect sense. The PC throws that when the device isn't responding with ...

esimon · 2015-07-14

Posted on July 14, 2015 at 18:36I'll take that as validation on what I was planning on doing, which is saving packets that I put in a mailbox and retrieving them using the transmit completion interrupt.

esimon · 2014-10-17

Posted on October 18, 2014 at 01:52I had this same problem and managed to track it to a particular USB port on my PC. Changing cables and/or ports may have been the solution for OP.

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