About briangomberg

briangomberg · 2013-01-18

Posted on January 19, 2013 at 02:49I have recently assembled the first prototype of a new board I'm working on for a project and have so far been unsuccessful in connecting to it with the STM32 ST-LINK Utility. The chip I'm using is the STM32F407VET...

briangomberg · 2013-01-19

Posted on January 20, 2013 at 02:32The VBAT pin actually got broken off so is just floating. This happened before the USART test. Would this cause issues? I'll be putting together another one of this revision of the board in a couple of days. The NR...

briangomberg · 2013-01-19

Posted on January 19, 2013 at 22:56Not sure exactly what I did, but I'm now getting 1.25V on VCAP2, but can no longer communicate with it over USART3, and am still having the same error with the ST-Link Utility. I've checked all the other pins you'v...

briangomberg · 2013-01-18

Posted on January 19, 2013 at 05:46So VDDA actually wasn't connected. Must have been an error in PCB manufacturing as there was just a small trace connecting it to pin 21 (VREF+) which was then connected to 3.3V. I've fixed this with a solder bridge...

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