micropython 3-wire spi 9bit 写入的问题

网上猛找把，没有，找不到，mpy不愧是没朋友的缩写，没有咋办，自己造！
此库特别适用那些rgb屏的初始化，大多用3线spi，好家伙rgb用了十多个引脚现在想起来省引脚了是吧，就差这一个引脚是吧！！！

from machine import Pin
import timeclass LOW_SPEED_SPI:def __init__(self,cs_pin,clk_pin,miso_pin):self.clk=Pin(clk_pin,Pin.OUT)self.miso=Pin(miso_pin,Pin.OUT)self.cs=Pin(cs_pin,Pin.OUT)def delay(self,t):time.sleep_us(t)def senddata(self,data):for i in range(0,8):if (data&0x80):self.miso.value(1)else:self.miso.value(0)data=data<<1self.clk.value(0)self.delay(1)self.clk.value(1)self.delay(1)def write_cmd(self,data):   #9bitself.cs.value(0)self.miso.value(0)self.clk.value(0)self.delay(1)self.clk.value(1)self.delay(1)self.senddata(data)self.cs.value(1)def write_data(self,data):self.cs.value(0)self.miso.value(1)self.clk.value(0)self.delay(1)self.clk.value(1)self.delay(1)self.senddata(data)self.cs.value(1)def init_st7701_spi(self):self.write_cmd(0xFF)self.write_data(0x77)self.write_data(0x01)self.write_data(0x00)self.write_data(0x00)self.write_data(0x13)self.write_cmd(0xEF)self.write_data(0x08)self.write_cmd(0xFF)self.write_data(0x77)self.write_data(0x01)self.write_data(0x00)self.write_data(0x00)self.write_data(0x10)self.write_cmd(0xC0)self.write_data(0x4F)self.write_data(0x00)self.write_cmd(0xC1)self.write_data(0x10)self.write_data(0x02)self.write_cmd(0xC2)self.write_data(0x07)self.write_data(0x02)self.write_cmd(0xCC)self.write_data(0x10)self.write_cmd(0xB0)self.write_data(0x00)self.write_data(0x10)self.write_data(0x17)self.write_data(0x0D)self.write_data(0x11)self.write_data(0x06)self.write_data(0x05)self.write_data(0x08)self.write_data(0x07)self.write_data(0x1F)self.write_data(0x04)self.write_data(0x11)self.write_data(0x0E)self.write_data(0x29)self.write_data(0x30)self.write_data(0x1F)self.write_cmd(0xB1)self.write_data(0x00)self.write_data(0x0D)self.write_data(0x14)self.write_data(0x0E)self.write_data(0x11)self.write_data(0x06)self.write_data(0x04)self.write_data(0x08)self.write_data(0x08)self.write_data(0x20)self.write_data(0x05)self.write_data(0x13)self.write_data(0x13)self.write_data(0x26)self.write_data(0x30)self.write_data(0x1F)self.write_cmd(0xFF)self.write_data(0x77)self.write_data(0x01)self.write_data(0x00)self.write_data(0x00)self.write_data(0x11)self.write_cmd(0xB0)self.write_data(0x65)self.write_cmd(0xB1)self.write_data(0x71)self.write_cmd(0xB2)self.write_data(0x87)self.write_cmd(0xB3)self.write_data(0x80)self.write_cmd(0xB5)self.write_data(0x4D)self.write_cmd(0xB7)self.write_data(0x85)self.write_cmd(0xB8)self.write_data(0x20)self.write_cmd(0xC1)self.write_data(0x78)self.write_cmd(0xC2)self.write_data(0x78)self.write_cmd(0xD0)self.write_data(0x88)self.write_cmd(0xEE)self.write_data(0x42)self.write_cmd(0xE0)self.write_data(0x00)self.write_data(0x00)self.write_data(0x02)self.write_cmd(0xE1)self.write_data(0x04)self.write_data(0xA0)self.write_data(0x06)self.write_data(0xA0)self.write_data(0x05)self.write_data(0xA0)self.write_data(0x07)self.write_data(0xA0)self.write_data(0x00)self.write_data(0x44)self.write_data(0x44)self.write_cmd(0xE2)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_cmd(0xE3)self.write_data(0x00)self.write_data(0x00)self.write_data(0x22)self.write_data(0x22)self.write_cmd(0xE4)self.write_data(0x44)self.write_data(0x44)self.write_cmd(0xE5)self.write_data(0x0C)self.write_data(0x90)self.write_data(0xA0)self.write_data(0xA0)self.write_data(0x0E)self.write_data(0x92)self.write_data(0xA0)self.write_data(0xA0)self.write_data(0x08)self.write_data(0x8C)self.write_data(0xA0)self.write_data(0xA0)self.write_data(0x0A)self.write_data(0x8E)self.write_data(0xA0)self.write_data(0xA0)self.write_cmd(0xE6)self.write_data(0x00)self.write_data(0x00)self.write_data(0x22)self.write_data(0x22)self.write_cmd(0xE7)self.write_data(0x44)self.write_data(0x44)self.write_cmd(0xE8)self.write_data(0x0D)self.write_data(0x91)self.write_data(0xA0)self.write_data(0xA0)self.write_data(0x0F)self.write_data(0x93)self.write_data(0xA0)self.write_data(0xA0)self.write_data(0x09)self.write_data(0x8D)self.write_data(0xA0)self.write_data(0xA0)self.write_data(0x0B)self.write_data(0x8F)self.write_data(0xA0)self.write_data(0xA0)self.write_cmd(0xEB)self.write_data(0x00)self.write_data(0x00)self.write_data(0xE4)self.write_data(0xE4)self.write_data(0x44)self.write_data(0x00)self.write_data(0x40)self.write_cmd(0xED)self.write_data(0xFF)self.write_data(0xF5)self.write_data(0x47)self.write_data(0x6F)self.write_data(0x0B)self.write_data(0xA1)self.write_data(0xAB)self.write_data(0xFF)self.write_data(0xFF)self.write_data(0xBA)self.write_data(0x1A)self.write_data(0xB0)self.write_data(0xF6)self.write_data(0x74)self.write_data(0x5F)self.write_data(0xFF)self.write_cmd(0xEF)self.write_data(0x08)self.write_data(0x08)self.write_data(0x08)self.write_data(0x45)self.write_data(0x3F)self.write_data(0x54)self.write_cmd(0xFF)self.write_data(0x77)self.write_data(0x01)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_cmd(0xFF)self.write_data(0x77)self.write_data(0x01)self.write_data(0x00)self.write_data(0x00)self.write_data(0x13)self.write_cmd(0xE6)self.write_data(0x16)self.write_cmd(0xE8)self.write_data(0x00)self.write_data(0x0E)self.write_cmd(0xFF)self.write_data(0x77)self.write_data(0x01)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_cmd(0x11)self.delay(12)self.write_cmd(0xFF)self.write_data(0x77)self.write_data(0x01)self.write_data(0x00)self.write_data(0x00)self.write_data(0x13)self.write_cmd(0xE8)self.write_data(0x00)self.write_data(0x0C)self.delay(1)self.write_cmd(0xE8)self.write_data(0x00)self.write_data(0x00)self.write_cmd(0xFF)self.write_data(0x77)self.write_data(0x01)self.write_data(0x00)self.write_data(0x00)self.write_data(0x00)self.write_cmd(0x29)self.write_cmd(0x3A)self.write_data(0x77)self.write_cmd(0x29)self.write_cmd(0x36)self.write_data(0x08)myspi=LOW_SPEED_SPI(cs_pin=38,clk_pin=46,miso_pin=45)
myspi.init_st7701_spi()