int speed_arr[] = {B230400, B115200, B57600, B38400, B19200, B9600, B4800, B2400, B1200, B300,
B38400, B19200, B9600, B4800, B2400, B1200, B300};
int name_arr[] = {230400, 115200, 57600, 38400, 19200, 9600, 4800, 2400, 1200, 300,
38400, 19200, 9600, 4800, 2400, 1200, 300};
在serial_test.c中,我看到有int speed_arr[] = {B230400, ...},其中的B115200和一般的int型有和区别,加“B”有何用?
cfsetispeed(&Opt, speed_arr[i]);的函数实现是在汇编代码吗?能看到不? |