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- Thu Feb 26, 2015 1:33 am
- Forum: STM32 Support
- Topic: STM32f2 working USB device example needed
- Replies: 10
- Views: 9502
Re: Minimum AHB speed 30 MHz
We've come across this issue bringing up a new board based on an STM32F205. We had set AHB bus speed to 24 MHz. USB didn't work. We raised it to 48 MHz, and now it works. It appears that the ST errata sheet, which specifies minimum of 14.2 MHz, may not be correct. It looks as though Giovanni's ...