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STM32F37, SDADC stops working when USB connected/disconnected

Question asked by crann.rob on Sep 18, 2013
Latest reply on Oct 9, 2013 by Igor Cesko
We have an STM32F37 running the SDADC perfectly. It also communicates via USB perfectly. Unfortunatly the SDADC stops working (gives reading of 0) when USB plug is pulled out. Also the SDADC stops working when USB plug is plugged in.

The only way round this is to call the ST routine: 'SDADC_DeInit' and reinitialise the SDADC.

Has anybody come across this problem and knows a solution?

The USB code is based on the ST code