Posted on October 25, 2011 at 19:10Dear Erik, Yes, I have. 1 yes, the traces to the xtal and the burden caps are less than 1cm. ~8mm. 2 yes, the traces to the Vdd decoupling caps less than 1cm . ~5mm. 3 yes, the every Vdd pin is decoupled with 0...
Posted on October 25, 2011 at 17:19Hi clive1, Thank you for your suggestion. I have checked that the 32.768kHz crytal is 12.5pF, this seem to be a problem, right? But some how the crytal on the development board that I have is 12.5pF too. I desolde...
Posted on October 23, 2011 at 10:32Dear,I am having this exact problem on my very first two prototype boards with STM32F103RET6 rev.Z ( DEV_ID = 0x414, REV_ID = 0x1001). I have never found this with the development board that I have, the development...
