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How to troubleshoot STM32F7 board bringup

Question asked by Zhang.Yale on Sep 28, 2015
Latest reply on Sep 30, 2015 by Clive One
Hey everyone. I've just put together my first STM32F7 LQFP100 breakout board. I wanted to first try the STM32F7 Discovery board, but the camera connector doesn't support the OV5645.

I'm having trouble uploading flashing through SWD (I'm using a Segger JLINK, which keeps saying "No device found on SWD"). I've successfully created and used a similar board based on the STM32F437VG before. The documentation said the pin out should be identical with the STM32F4, except for the bottom and left side rows, which I've changed.

How can I go about debugging this? I've already checked connectivity of all the power, VCAP, BOOT0, reset, and SWD pins.

Also, I'm not certain that the chip has the right orientation. The STM32F4 had a marker to show which corner was pin 1. Somehow the STM32F7 has 2 markers which is confusing (figure 80 in the manual still says pin 1 is at the bottom left corner when you orient the text correctly which is consistent with what I did for STM32F4).

Thanks for your help
stm32f7.jpg

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