摘要:
源码: void test_str2num(void) { printf("\r\n\r\nint is %d",sizeof(int)); printf("\r\nlong int is %d",sizeof(long int)); printf("\r\nlong long int is %d" 阅读全文
摘要:
查了下数据手册,里面有这么一句话:The input data register (GPIOx_IDR) captures the data present on the I/O pin at every AHB1 clock cycle. 在另外一个手册里,有这么一句话:The written d 阅读全文