网上买了ps2手柄，按stm32 代码 改写了个micropython

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from machine import Pin

import time

di=Pin(12,Pin.IN,Pin.PULL_DOWN)

do=Pin(14,Pin.OUT, )

cs=Pin(27,Pin.OUT,)     #PULL_UP

clk=Pin(26,Pin.OUT,)

#D0 16  dat=DI

#D2 04  cmd=DO

#D3  0  CS =CS

#D4  02  CLK=CLK

def DO_H():

do.value(1)

def DO_L():

do.value(0)

def CS_H ():

cs.value(1)

def CS_L():

cs.value(0)

def CLK_H ():

clk.value(1)

def CLK_L():

clk.value(0)

#These are our button constants

PSB_SELECT     = 1

PSB_L3         = 2

PSB_R3         = 3

PSB_START      = 4

PSB_PAD_UP     = 5

PSB_PAD_RIGHT  = 6

PSB_PAD_DOWN   = 7

PSB_PAD_LEFT   = 8

PSB_L2         = 9

PSB_R2         = 10

PSB_L1         = 11

PSB_R1         = 12

PSB_GREEN      = 13

PSB_RED        = 14

PSB_BLUE       = 15

PSB_PINK       = 16

PSB_TRIANGLE   = 13

PSB_CIRCLE     = 14

PSB_CROSS      = 15

PSB_SQUARE     = 26

PSS_RX = 5                #x

PSS_RY = 6

PSS_LX = 7

PSS_LY = 8

mask=[

PSB_SELECT,

PSB_L3,

PSB_R3 ,

PSB_START,

PSB_PAD_UP,

PSB_PAD_RIGHT,

PSB_PAD_DOWN,

PSB_PAD_LEFT,

PSB_L2,

PSB_R2,

PSB_L1,

PSB_R1 ,

PSB_GREEN,

PSB_RED,

PSB_BLUE,

PSB_PINK]

comd=[0x01,0x42]

data=[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]

def ps2_init():

CLK_H()

DO_H()

time.sleep_ms(10)

def ps2_cmd(cmd):

global data

data[1]=0

for ref in (1,2,4,8,16,32,64,128):

if ( ref & cmd):

DO_H()

else:

DO_L()

CLK_H ()

time.sleep_us(50)

CLK_L()

time.sleep_us(50)

CLK_H ()

if(di.value()==1):

data[1]=ref|data[1]

def ps2_red():

global data

global comd

CS_L()

ps2_cmd(comd[0])

ps2_cmd(comd[1])

CS_H()

if(data[1]==57):

return 0#red light

else:

return 1#not red

def ps2_read():

global data

global comd

byte=0

ref=0x01

CS_L()

ps2_cmd(comd[0])

ps2_cmd(comd[1])

for byte in (2,3,4,5,6,7,8):

for ref in (1,2,4,8,16,32,64,128):

CLK_H ()

CLK_L()

time.sleep_us(50)

CLK_H ()

if(di.value()==1):

data[byte]= ref|data[byte]

time.sleep_us(50)

CS_H ()

def ps2_clear():#ok

global data

for i in range(0,9,1):

data[i]=0

def ps2_andata(button):

global data

return data[button]

def ps2_key():

global data

global mask

ps2_clear()

ps2_read()

handkey=(data[4]<<8)|data[3]

for index in (0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15):

if (( handkey&(1<

return index+2

return 0

2018-3-30 22:24 上传