TPYBoard讀取芯片上的溫度傳感器

1、tpyboard讀取芯片上的溫度傳感器 四、tpyboard讀取溫度例程 main.py - put your code here! import pybimport timeimport stmfrom pyb import pindef adcread(chan): 16 temp 17 vbat 18 vref assert chan >= 16 and chan start = lis() timeout = 100 stm.mem32stm.rcc + stm.rcc_apb2enr |= 0x100 enable adc1 clock.0x4100 stm.me

2、m32stm.adc1 + stm.adc_cr2 = 1 turn on adc stm.mem32stm.adc1 + stm.adc_cr1 = 0 12 bit if chan = 17: stm.mem32stm.adc1 + stm.adc_smpr1 = 0x200000 15 cycles stm.mem32stm.adc + 4 = 1 elif chan = 18: stm.mem32stm.adc1 + stm.adc_smpr1 = 0x1000000 stm.mem32stm.adc + 4 = 0xc00000 else: stm.mem32stm.adc1 + s

3、tm.adc_smpr1 = 0x40000 stm.mem32stm.adc + 4 = 1 stm.mem32stm.adc1 + stm.adc_sqr3 = chan stm.mem32stm.adc1 + stm.adc_cr2 = 1 | (1 while not stm.mem32stm.adc1 + stm.adc_sr & 2: wait for eoc if pyb.elapsed_millis(start) > timeout: raise oserror('adc timout') data = stm.mem32stm.adc1 + st

4、m.adc_dr clear down eoc stm.mem32stm.adc1 + stm.adc_cr2 = 0 turn off adc return data def v33(): return 4096 * 1.21 / adcread(17) def vbat(): return 1.21 * 2 * adcread(18) / adcread(17) 2:1 divider on vbat channel def vref(): return 3.3 * adcread(17) / 4096 def temperature(): return 25 + 400 * (3.3 *

5、 adcread(16) / 4096 - 0.76) adc = pyb.adcall(12)leds = pyb.(i) for i in range(1,5)sw=pyb.switch()def test(): pyb.led(1).on() pyb.led(2).on() pyb.led(3).on() pyb.led(4).on() pyb.delay(2000) sw.callback(test)for l in leds: l.off() n = 0try: while true: n = (n + 1) % 4 ledsn.toggle() pyb.delay(50) print('v33:',v33() print('vbat:',vbat() print('vref:',vref() print(&