CC3200 MicroPython examples

2020/2/16

CC3200 MicroPython examples

CC3200 MicroPython examples

概要

CC3200 MicroPythonのサンプルについてまとめた。
なお、基板上のピン番号(Pxx)とGPIOなどの対応は以下のソースコードの以下にある：
micropython/ports/cc3200/boards/cc3200_af.csv

Peformace Test for CC3200

  from machine import RTC
  rtc = RTC(datetime=(2020, 2, 9, 10, 11, 0, 0, None)) 

  def performanceTest():
       secs = rtc.now()[5] 
       endTime = secs + 10
       count = 0
       while rtc.now()[5] < endTime:
           count += 1
       print("Count: ", count)
  performanceTest()
  

以下のような出力が出る
Count: 5529
他のMicroPythonボードに比べて遅い結果だが、省電優先設計のせいだと思われる。

Digital Out

  from machine import Pin
  # Orange LED - D6(GP10) on board
  gp10_out = Pin('GP10', mode=Pin.OUT)
  gp10_out.value(1)
  gp10_out.value(0)
  # Green LED  - D5(GP11) on board
  gp11_out = Pin('GP11', mode=Pin.OUT)
  gp11_out.value(1)
  gp11_out.value(0)
  

Digital In

  from machine import Pin
  # SW2 GPIO22
  # SW3 GPIO13
  # make GP22 an input with the pull-up enabled
  gp22_in = Pin('GP22', mode=Pin.IN, pull=Pin.PULL_UP)
  gp22_in() # get value, 0 or 1 on SW2
  # make GP13 an input with the pull-up enabled
  gp13_in = Pin('GP13', mode=Pin.IN, pull=Pin.PULL_UP)
  gp13_in() # get value, 0 or 1 on SW3
  

SW control LED

  from machine import Pin
  ledOrange = Pin('GP10', mode=Pin.OUT)
  ledGreen = Pin('GP11', mode=Pin.OUT)
  sw2 = Pin('GP22', mode=Pin.IN, pull=Pin.PULL_UP)
  sw3 = Pin('GP13', mode=Pin.IN, pull=Pin.PULL_UP)
  while True:
     ledOrange.value(sw2())
     ledGreen.value(sw3())

  

Analog In

  from time import sleep_ms
  # p57 GP2 a#0
  # p58 GP3 a#1
  # p59 GP4 a#2
  # p60 GP5 a#3 
  # read value, 0-4095
  from machine import ADC
  adc = ADC()
  a0in = adc.channel(pin='GP2')
  a1in = adc.channel(pin='GP3')
  a2in = adc.channel(pin='GP4')
  a3in = adc.channel(pin='GP5')
  while True:
     print('p57:'+str(a0in()))
     print('p58:'+str(a1in()))
     print('p59:'+str(a2in()))
     print('p60:'+str(a3in()))
     print('============')
     sleep_ms(1000)
  

PWM

  # make LEDs off
  from machine import Pin
  # Orange LED - D6(GP10) on board
  gp10_out = Pin('GP10', mode=Pin.OUT)
  gp10_out.value(0)
  # Green LED  - D5(GP11) on board
  gp11_out = Pin('GP11', mode=Pin.OUT)
  gp11_out.value(0)
  #
  from machine import Timer
  # timer 3 in PWM mode and width must be 16 buts
  tim = Timer(3, mode=Timer.PWM, width=16)
  # enable channel A @1KHz with a 1.55% duty cycle
  tim_a = tim.channel(Timer.A, freq=1000, duty_cycle=0155) # p1(GP10): Orange LED on board
  # enable channel B @1KHz with a 30.55% duty cycle
  tim_b = tim.channel(Timer.B, freq=1000, duty_cycle=3055) # p2(GP11): Green LED on board
  

I2C

from machine import Pin, I2C
  scl0 = Pin('GP10', mode=Pin.ALT, alt=1) 
  sda0 = Pin('GP11', mode=Pin.ALT, alt=1)
  i2c = I2C(0, scl=scl0, sda=sda0)
  i2c.scan()
  # [24, 65] (ボード上の以下のデバイスのアドレスが返る)
  # BMA222　(加速度センサ)  24(0x18)
  # TMP006　(温度センサ) 65(0x41)
  

SDCard(動作確認無し、ピン配置からの推測)

  # SDCard
  from machine import SD, Pin
  import os

  # clock pin, cmd pin, data0 pin
  # 以下の２つの設定のうち１つを使用する

  # 設定＃１
  sd0_clk = Pin('GP10', mode=Pin.ALT, alt=6) 
  sd0_cmd = Pin('GP11', mode=Pin.ALT, alt=6)
  sd0_dat0 = Pin('GP15', mode=Pin.ALT, alt=8)

  # 設定#2
  sd0_clk = Pin('GP16', mode=Pin.ALT, alt=8) 
  sd0_cmd = Pin('GP17', mode=Pin.ALT, alt=8)
  sd0_dat0 = Pin('GP15', mode=Pin.ALT, alt=8)

  sd = SD(pins=(sd0_clk, sd0_cmd, sd0_dat0) # SD0_CLK(SCL) SD0_CMD(MOSI) SD0_DAT0(MISO)

  os.mount(sd, '/sd')

  

以上