baudrate.py

来自「8051 interrupt assemble code」· Python 代码 · 共 12 行

def timer_to_baudrate(timer_value, f_osc, smod=0):
	return 	((2.0**smod)*f_osc)/(32*12*(256-timer_value))
def baudrate_to_timer(baudrate, f_osc, smod=0):
	t = 256 - ((2**smod)*f_osc)/(384*baudrate)
	return (t, baudrate - timer_to_baudrate(t, f_osc, smod))

def timer2_to_baudrate(timer_value, f_osc, smod=0):
	return f_osc/(32*(65536-timer_value))
def baudrate_to_timer2(baudrate, f_osc, smod=0):
	t = 65536 - f_osc/(32*baudrate)
	return (t, baudrate - timer2_to_baudrate(t, f_osc, smod))