I changed the FLASH to Spansion S29GL, but I can't write JTAG into it. It seems that this chip is not supported. It is too troublesome to use the flash programmer. What should I do? Does anyone have t
The frequency error of USB 12Mbps is allowed to be 0.25%. However, the HSI of stm32f allows adjustment in steps of about 40kHz (changing the value of HSITRIM). 40kHz/8MHz=0.5%, what a pity. If the HSI
I need to write an IE browser. How can I detect whether the current network status (should be the status of IE) is connected or disconnected? I have found through experiments that it does not work by