The debugging program encountered a problem GPIOPinWrite(GPIO_PORTB_BASE, LED, LED^GPIOPinRead(GPIO_PORTB_BASE,LED)) This is normal. If you change it to
When calling GPIOPinWrite(GPIO_PORTB_BASE, LED,
1. Negotiable. 2. As I don't have time to use it, I'm selling it. The development kit is definitely usable. 3. The Taobao address when I bought it [url=http://item.taobao.com/item.htm?id=1730586027]ht