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3.10 haas506 2.0开发教程-example-TFT
1.介绍
本节实现了128*160TFT(驱动ST7735S)屏幕点亮、画点、画线、画圆、显示字符串、显示BMP图片功能。
注意在文件夹中加入图片。
接线
模块引脚
当前案例为了接线方便，将DC、RST接到了haas506开发板的i2c接口的SCL（GPIO19)、SDA(GPIO20)引脚上。pin note GND 电压地 VDD 电压正3.3V SCL SPI时钟线（与haas506的SPI_CLK相接） SDA SPI数据线（与haas506的SPI_MOSI相接) RST 复位引脚 DC 数据/命令引脚 CS SPI片选（与haas506的SPI_CS相接） BLK 背光控制开关，可不接 -
模块实物图1
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模块实物图2
2.测试代码
- main.py
from st7735s import ST7735S import utime as time tft=ST7735S() tft.tft_begin() #画空心圆 tft.tft_drawCircle(64,64,40,0xffff,0) tft.tft_drawCircle(64,64,30,0xffff,0) tft.tft_drawCircle(64,64,20,0xffff,0) time.sleep(2) #清屏 tft.tft_clear() #画实心圆 tft.tft_drawCircle(64,64,20,0xffff,1) time.sleep(2) tft.tft_clear() #画三角形 tft.tft_drawTriangel(0,0,100,64,120,32,0xf800) time.sleep(2) tft.tft_clear() #画像素点/画线 tft.tft_drawPoint(32,32,0xf800) tft.tft_drawPoint(64,32,0xf800) tft.tft_drawPoint(64,64,0xf800) tft.tft_drawPoint(32,64,0xf800) time.sleep(2) tft.tft_clear() tft.tft_drawLine(32,32,100,32,0xf800) tft.tft_drawLine(64,64,120,120,0xf800) time.sleep(2) tft.tft_clear() #显示BMP图片,当前图片存放在项目文件夹内 tft.tft_showBmp('/data/pyamp/test128x160.bmp') time.sleep(2) tft.tft_clear() tft.tft_showBmp('/data/pyamp/flower64x48.bmp') time.sleep(2) tft.tft_clear() #显示字符(6*8字体大小) tft.tft_showString(0,0,"haas506",0xf800) tft.tft_showString(0,32,"hello world",0xffff) tft.tft_showString(0,64,"123456789",0X07FF) time.sleep(2) tft.tft_clear() #显示中文字符 (16*16字体大小) tft.tft_showCHN(0,0,1,0xffff,0) tft.tft_showCHN(0,16,2,0xffff,0) tft.tft_showCHN(0,32,3,0xffff,0) tft.tft_showCHN(0,48,4,0xffff,0) tft.tft_showCHN(0,64,5,0xffff,0) time.sleep(2) tft.tft_clear() #显示中文字符 (24*24字体大小) tft.tft_showCHN(0,0,1,0xffff,1) tft.tft_showCHN(0,24,2,0xffff,1) tft.tft_showCHN(0,48,3,0xffff,1) tft.tft_showCHN(0,72,4,0xffff,1) tft.tft_showCHN(0,96,5,0xffff,1) time.sleep(2) tft.tft_clear() #显示自定义字符 (8*16字体大小) tft.tft_showCHN(0,0,7,0xffff,2)- 1
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- st7735s.py
from driver import SPI from driver import GPIO import utime as time from font import terminalfont,F16_16,F24_24,F8_16 USE_HORIZONTAL=1 #设置横屏或者竖屏显示 0或1为竖屏 2或3为横屏 # Constants for interacting with display registers. ST7735_TFTWIDTH = 128 ST7735_TFTHEIGHT = 160 ST7735_NOP = 0x00 ST7735_SWRESET = 0x01 ST7735_RDDID = 0x04 ST7735_RDDST = 0x09 ST7735_SLPIN = 0x10 ST7735_SLPOUT = 0x11 ST7735_PTLON = 0x12 ST7735_NORON = 0x13 # ILI9341_RDMODE = 0x0A # ILI9341_RDMADCTL = 0x0B # ILI9341_RDPIXFMT = 0x0C # ILI9341_RDIMGFMT = 0x0A # ILI9341_RDSELFDIAG = 0x0F ST7735_INVOFF = 0x20 ST7735_INVON = 0x21 # ILI9341_GAMMASET = 0x26 ST7735_DISPOFF = 0x28 ST7735_DISPON = 0x29 ST7735_CASET = 0x2A ST7735_RASET = 0x2B ST7735_RAMWR = 0x2C ST7735_RAMRD = 0x2E ST7735_PTLAR = 0x30 ST7735_MADCTL = 0x36 # ST7735_PIXFMT = 0x3A ST7735_COLMOD = 0x3A ST7735_FRMCTR1 = 0xB1 ST7735_FRMCTR2 = 0xB2 ST7735_FRMCTR3 = 0xB3 ST7735_INVCTR = 0xB4 # ILI9341_DFUNCTR = 0xB6 ST7735_DISSET5 = 0xB6 ST7735_PWCTR1 = 0xC0 ST7735_PWCTR2 = 0xC1 ST7735_PWCTR3 = 0xC2 ST7735_PWCTR4 = 0xC3 ST7735_PWCTR5 = 0xC4 ST7735_VMCTR1 = 0xC5 # ILI9341_VMCTR2 = 0xC7 ST7735_RDID1 = 0xDA ST7735_RDID2 = 0xDB ST7735_RDID3 = 0xDC ST7735_RDID4 = 0xDD ST7735_GMCTRP1 = 0xE0 ST7735_GMCTRN1 = 0xE1 ST7735_PWCTR6 = 0xFC # Colours for convenience ST7735_BLACK = 0x0000 # 0b 00000 000000 00000 黑色 ST7735_BLUE = 0x001F # 0b 00000 000000 11111 蓝色 ST7735_GREEN = 0x07E0 # 0b 00000 111111 00000 绿色 ST7735_RED = 0xF800 # 0b 11111 000000 00000 红色 ST7735_CYAN = 0x07FF # 0b 00000 111111 11111 橘黄 ST7735_MAGENTA = 0xF81F # 0b 11111 000000 11111 紫红色 ST7735_YELLOW = 0xFFE0 # 0b 11111 111111 00000 黄色 ST7735_WHITE = 0xFFFF # 0b 11111 111111 11111 ST7735_CYAN =0x7FFF ST7735_BROWN =0XBC40 #棕色 ST7735_BRRED =0XFC07 #棕红色 ST7735_GRAY =0X8430 #灰色 ST7735_DARKBLUE =0X01CF #深蓝色 ST7735_LIGHTBLUE =0X7D7C #浅蓝色 ST7735_GRAYBLUE =0X5458 #灰蓝色 ST7735_LIGHTGREEN =0X841F #浅绿色 ST7735_LGRAY =0XC618 #浅灰色(PANNEL),窗体背景色 ST7735_LGRAYBLUE =0XA651 #浅灰蓝色(中间层颜色) ST7735_LBBLUE =0X2B12 #浅棕蓝色(选择条目的反色) class ST7735S(object): # -------------------------------------------------------------- # Prototype : __init__(width=ST7735_TFTWIDTH,height=ST7735_TFTHEIGHT) # Parameters : width，height为屏幕的大小，如128*160 # Description : 初始化spi，cs,rst,dc引脚 # -------------------------------------------------------------- def __init__(self,width=ST7735_TFTWIDTH,height=ST7735_TFTHEIGHT): self.width = width self.height = height #creat spi-instance,cs-instance,rst,dc #open spi,cs,rst,dc self._spi=SPI() self._spi.open('ST7735S') self.cs=GPIO() self.cs.open('cs') self._rst=GPIO() self._rst.open('rst') self._dc=GPIO() self._dc.open('dc') # -------------------------------------------------------------- # Prototype : _initialize() # Parameters : 无 # Description : 初始化 # -------------------------------------------------------------- def _initialize(self): self.writeCmd(ST7735_SWRESET) # Software reset time.sleep_ms(150) # delay 150 ms self.writeCmd(ST7735_SLPOUT) #Out of sleep mode time.sleep_ms(120) #------------------------------------ST7735S Frame Rate-----------------------------------------# self.writeCmd(ST7735_FRMCTR1) self.writeDat(0x05) self.writeDat(0x3C) self.writeDat(0x3C) self.writeCmd(ST7735_FRMCTR2) self.writeDat(0x05) self.writeDat(0x3C) self.writeDat(0x3C) self.writeCmd(ST7735_FRMCTR3) self.writeDat(0x05) self.writeDat(0x3C) self.writeDat(0x3C) self.writeDat(0x05) self.writeDat(0x3C) self.writeDat(0x3C) #------------------------------------End ST7735S Frame Rate---------------------------------# self.writeCmd(ST7735_INVCTR) #Display inversion ctrl # self.writeDat(0x03) # option1 self.writeDat(0x07) # option2 #------------------------------------ST7735S Power Sequence---------------------------------# self.writeCmd(ST7735_PWCTR1) self.writeDat(0x28) self.writeDat(0x08) self.writeDat(0x04) self.writeCmd(ST7735_PWCTR2) self.writeDat(0XC0) self.writeCmd(ST7735_PWCTR3) self.writeDat(0x0D) self.writeDat(0x00) self.writeCmd(ST7735_PWCTR4) self.writeDat(0x8D) self.writeDat(0x2A) self.writeCmd(ST7735_PWCTR5) self.writeDat(0x8D) self.writeDat(0xEE) #---------------------------------End ST7735S Power Sequence-------------------------------------# self.writeCmd(ST7735_VMCTR1) #VCOM self.writeDat(0x1A) self.writeCmd(ST7735_MADCTL) #MX, MY, RGB mode if USE_HORIZONTAL==0: self.writeDat(0x00) elif USE_HORIZONTAL==1: self.writeDat(0xC0) elif USE_HORIZONTAL==2: self.writeDat(0x70) else: self.writeDat(0xA0) # if USE_HORIZONTAL==0: # self.writeDat(0xC8) # elif USE_HORIZONTAL==1: # self.writeDat(0x08) # elif USE_HORIZONTAL==2: # self.writeDat(0x78) # else: # self.writeDat(0xA8) #------------------------------------ST7735S Gamma Sequence---------------------------------# self.writeCmd(ST7735_GMCTRP1) self.writeDat(0x04) self.writeDat(0x22) self.writeDat(0x07) self.writeDat(0x0A) self.writeDat(0x2E) self.writeDat(0x30) self.writeDat(0x25) self.writeDat(0x2A) self.writeDat(0x28) self.writeDat(0x26) self.writeDat(0x2E) self.writeDat(0x3A) self.writeDat(0x00) self.writeDat(0x01) self.writeDat(0x03) self.writeDat(0x13) self.writeCmd(ST7735_GMCTRN1) self.writeDat(0x04) self.writeDat(0x16) self.writeDat(0x06) self.writeDat(0x0D) self.writeDat(0x2D) self.writeDat(0x26) self.writeDat(0x23) self.writeDat(0x27) self.writeDat(0x27) self.writeDat(0x25) self.writeDat(0x2D) self.writeDat(0x3B) self.writeDat(0x00) self.writeDat(0x01) self.writeDat(0x04) self.writeDat(0x13) ##------------------------------------End ST7735S Gamma Sequence-----------------------------# self.writeCmd(ST7735_COLMOD) #65k mode set color mode self.writeDat(0x05) self.writeCmd(ST7735_DISPON) #Display on # #black time.sleep_ms(200) self.tft_fill(0,0,128,160,0x0000) # Initialize the display. Broken out as a separate function so it can # be overridden by other displays in the future. # self.writeCmd(ST7735_SWRESET) # Software reset # time.sleep_ms(150) # delay 150 ms # self.writeCmd(ST7735_SLPOUT) # Out of sleep mode # time.sleep_ms(500) # delay 500 ms # self.writeCmd(ST7735_FRMCTR1) # Frame rate ctrl - normal mode # self.writeDat(0x01) # Rate = fosc/(1x2+40) * (LINE+2C+2D) # self.writeDat(0x2C) # self.writeDat(0x2D) # self.writeCmd(ST7735_FRMCTR2) # Frame rate ctrl - idle mode # self.writeDat(0x01) # Rate = fosc/(1x2+40) * (LINE+2C+2D) # self.writeDat(0x2C) # self.writeDat(0x2D) # self.writeCmd(ST7735_FRMCTR3) # Frame rate ctrl - partial mode # self.writeDat(0x01) # Dot inversion mode # self.writeDat(0x2C) # self.writeDat(0x2D) # self.writeDat(0x01) # Line inversion mode # self.writeDat(0x2C) # self.writeDat(0x2D) # self.writeCmd(ST7735_INVCTR) # Display inversion ctrl # self.writeDat(0x07) # No inversion # self.writeCmd(ST7735_PWCTR1) # Power control # self.writeDat(0xA2) # self.writeDat(0x02) # -4.6V # self.writeDat(0x84) # auto mode # self.writeCmd(ST7735_PWCTR2) # Power control # self.writeDat(0x0A) # Opamp current small # self.writeDat(0x00) # Boost frequency # self.writeCmd(ST7735_PWCTR4) # Power control # self.writeDat(0x8A) # BCLK/2, Opamp current small & Medium low # self.writeDat(0x2A) # self.writeCmd(ST7735_PWCTR5) # Power control # self.writeDat(0x8A) # self.writeDat(0xEE) # self.writeCmd(ST7735_VMCTR1) # Power control # self.writeDat(0x0E) # self.writeCmd(ST7735_INVOFF) # Don't invert display # self.writeCmd(ST7735_MADCTL) # Memory access control (directions) # self.writeDat(0xC8) # row addr/col addr, bottom to top refresh # self.writeCmd(ST7735_COLMOD) # set color mode # self.writeDat(0x05) # 16-bit color # self.writeCmd(ST7735_CASET) # Column addr set # self.writeDat(0x00) # XSTART = 0 # self.writeDat(0x00) # self.writeDat(0x00) # XEND = 127 # self.writeDat(0x7F) # self.writeCmd(ST7735_RASET) # Row addr set # self.writeDat(0x00) # XSTART = 0 # self.writeDat(0x00) # self.writeDat(0x00) # XEND = 159 # self.writeDat(0x9F) # # # self.writeCmd(ST7735_GMCTRP1) # Set Gamma # self.writeDat(0x02) # self.writeDat(0x1c) # self.writeDat(0x07) # self.writeDat(0x12) # self.writeDat(0x37) # self.writeDat(0x32) # self.writeDat(0x29) # self.writeDat(0x2d) # self.writeDat(0x29) # self.writeDat(0x25) # self.writeDat(0x2B) # self.writeDat(0x39) # self.writeDat(0x00) # self.writeDat(0x01) # self.writeDat(0x03) # self.writeDat(0x10) # self.writeCmd(ST7735_GMCTRN1) # Set Gamma # self.writeDat(0x03) # self.writeDat(0x1d) # self.writeDat(0x07) # self.writeDat(0x06) # self.writeDat(0x2E) # self.writeDat(0x2C) # self.writeDat(0x29) # self.writeDat(0x2D) # self.writeDat(0x2E) # self.writeDat(0x2E) # self.writeDat(0x37) # self.writeDat(0x3F) # self.writeDat(0x00) # self.writeDat(0x00) # self.writeDat(0x02) # self.writeDat(0x10) # self.writeCmd(ST7735_NORON) # Normal display on # time.sleep_ms(10) # 10 ms # self.writeCmd(ST7735_DISPON) # Display on # time.sleep_ms(100) # 100 ms # # self.tft_fill(0,0,128,160,0x00) # -------------------------------------------------------------- # Prototype : writeCmd(command) # Parameters : command # Description : 写命令 # -------------------------------------------------------------- def writeCmd(self, command): """Send command byte to display.""" #spi write. #DC = 0 :write command self._dc.write(0) writeBuf=bytearray(1) self.cs.write(0) writeBuf[0]=command self._spi.write(writeBuf) self.cs.write(1) # -------------------------------------------------------------- # Prototype : writeDat(data) # Parameters : data # Description : 写8bits数据 # -------------------------------------------------------------- def writeDat(self, data): """Send byte of data(8bits) to display.""" # spi write. #DC = 1:write data self._dc.write(1) writeBuf=bytearray(1) self.cs.write(0) writeBuf[0]=data self._spi.write(writeBuf) self.cs.write(1) # -------------------------------------------------------------- # Prototype : writeDat_16(data) # Parameters : data # Description : 写16bits数据，例如显示颜色 # -------------------------------------------------------------- def writeDat_16(self, data): """Send byte of data(16bits) to display.""" # spi write. #DC = 1:write data self._dc.write(1) writeBuf=bytearray(2) self.cs.write(0) writeBuf[0]=data>>8 writeBuf[1]=data self._spi.write(writeBuf) self.cs.write(1) # -------------------------------------------------------------- # Prototype : reset() # Parameters : 无 # Description : 重启显示屏，如果reset引脚已连接 # -------------------------------------------------------------- def reset(self): if self._rst is not None: self._rst.write(1) time.sleep_ms(500) self._rst.write(0) time.sleep_ms(500) self._rst.write(1) time.sleep_ms(500) # -------------------------------------------------------------- # Prototype : tft_off() # Parameters : 无 # Description : 关闭后，只亮白光 # -------------------------------------------------------------- def tft_off(self): self.writeCmd(ST7735_DISPOFF) # -------------------------------------------------------------- # Prototype : tft_on() # Parameters : 无 # Description : 打开屏幕显示，默认背景颜色为黑色 # -------------------------------------------------------------- def tft_on(self): self.writeCmd(ST7735_DISPON) # -------------------------------------------------------------- # Prototype : tft_begin() # Parameters : 无 # Description : 屏幕初始化 # -------------------------------------------------------------- def tft_begin(self): self.reset() self._initialize() # -------------------------------------------------------------- # Prototype : tft_setPos(x0, y0, x1, y1) # Parameters : x0,x1 设置x轴的起始和结束地址 # y0,y1 设置y轴的起始和结束地址 # Description : 设置起始和结束坐标 # -------------------------------------------------------------- def tft_setPos(self, x0, y0, x1, y1): """Set the pixel address window for proceeding drawing commands. x0 and x1 should the minimum and maximum x pixel bounds. y0 and y1 should the minimum and maximum y pixel bound. If no parameters are specified the default will be to update the entire display from 0,0 to width-1,height-1. """ # self.writeCmd(ST7735_CASET);#//列地址设置 # self.writeDat(x0+2) # self.writeDat(x1+2) # self.writeCmd(ST7735_RASET)#//行地址设置 # self.writeDat(y0+1) # self.writeDat(y1+1) # self.writeCmd(ST7735_RAMWR) #//储存器写 self.writeCmd(ST7735_CASET) self.writeDat(x0>>8) self.writeDat(x0) # XSTART self.writeDat(x1>>8) self.writeDat(x1) # XEND self.writeCmd(ST7735_RASET) # Row addr set self.writeDat(y0>>8) self.writeDat(y0) # YSTART self.writeDat(y1>>8) self.writeDat(y1) # XEND self.writeCmd(ST7735_RAMWR) # write to RAM # -------------------------------------------------------------- # Prototype : tft_clear() # Parameters : 无 # Description : 清屏，全黑 # -------------------------------------------------------------- def tft_clear(self): self.tft_fill(0,0,128,160,ST7735_BLACK) # -------------------------------------------------------------- # Prototype : tft_fill(x0,y0,x1,y1,color) # Parameters : x0,y0 起始坐标 # x1,y1 终止坐标 # color 要填充的颜色 # Description : 填充指定块区域 # -------------------------------------------------------------- def tft_fill(self,x0,y0,x1,y1,color): self.tft_setPos(x0,y0,x1-1,y1-1) for i in range(y0,y1): for j in range(x0,x1): self.writeDat_16(color) # -------------------------------------------------------------- # Prototype : tft_drawPoint(x,y,color) # Parameters : x,y为所画的点的坐标，color为点的颜色 # Description : x取值范围(0,128),y取值范围(0,160) # -------------------------------------------------------------- def tft_drawPoint(self,x,y,color): self.tft_setPos(x,y,x,y) self.writeDat_16(color) # -------------------------------------------------------------- # Prototype : tft_drawLine(x0,y0,x1,y1,color) # Parameters : (x0,y0)是所画线的起始坐标,(x1,y1)是所画线的终点坐标,color为线的颜色 # Description : x0，x1的取值范围为(0,128),y0，y1的取值范围为(0,160) # -------------------------------------------------------------- def tft_drawLine(self,x0,y0,x1,y1,color): xerr,yerr=0,0 delta_x,delta_y,distance=0,0,0 uRow=x0 uCol=y0 delta_x=x1-x0 #计算坐标增量 delta_y=y1-y0 if delta_x>0: incx=1 #设置单步方向 elif delta_x==0: incx=0 #垂直线 else: incx=-1 delta_x=-delta_x if delta_y>0: incy=1 elif delta_y==0: incy=0 #水平线 else: incy=-1 delta_y=-delta_y if delta_x>delta_y: distance=delta_x #选取基本增量坐标轴 else: distance=delta_y for i in range(distance+2): #画线输出 self.tft_drawPoint(uRow,uCol,color) #画点 xerr+=delta_x yerr+=delta_y if xerr>distance: xerr-=distance uRow+=incx if yerr>distance: yerr-=distance uCol+=incy # -------------------------------------------------------------- # Prototype : tft_draw_circle_8(xc,yc,x,y,color) # Description : 画出圆的外切矩形的四个点 # -------------------------------------------------------------- def tft_draw_circle_8(self,xc,yc,x,y,color): self.tft_drawPoint(xc+x,yc+y,color) self.tft_drawPoint(xc-x,yc+y,color) self.tft_drawPoint(xc+x,yc-y,color) self.tft_drawPoint(xc-x,yc-y,color) self.tft_drawPoint(xc+y,yc+x,color) self.tft_drawPoint(xc-y,yc+x,color) self.tft_drawPoint(xc+y,yc-x,color) self.tft_drawPoint(xc-y,yc-x,color) # -------------------------------------------------------------- # Prototype : tft_drawCircle(xc,yc,r,color,mode) # Parameters : xc,yc为圆的圆心坐标 # r为园的半径 # color为圆的颜色 # mode是圆的模式选择，0-空心圆，1-实心圆 # Description : 以指定坐标，半径画圆 # -------------------------------------------------------------- def tft_drawCircle(self,xc,yc,r,color,mode): x=0 y=r d=3-2*r if mode: #画实心圆 while x<=y: for yi in range(x,y+1): self.tft_draw_circle_8(xc,yc,x,yi,color) if d<0: d=d+4*x+6 else: d=d+4*(x-y)+10 y-=1 x+=1 else: #画空心圆 while x<=y: self.tft_draw_circle_8(xc,yc,x,y,color) if d<0: d=d+4*x+6 else: d=d+4*(x-y)+10 y-=1 x+=1 # -------------------------------------------------------------- # Prototype : tft_drawTriangel(x0,y0,x1,y1,x2,y2,color) # Parameters : x0,y0为三角形的一个坐标 # x1,y1为三角形的一个坐标 # x2,y2为三角形的一个坐标 # color为三角形的颜色 # Description : 指定3个坐标 画三角形 # -------------------------------------------------------------- def tft_drawTriangel(self,x0,y0,x1,y1,x2,y2,color): self.tft_drawLine(x0,y0,x1,y1,color) self.tft_drawLine(x1,y1,x2,y2,color) self.tft_drawLine(x2,y2,x0,y0,color) # -------------------------------------------------------------- # Prototype : tft_showSignleChar(x, y, char,color, sizex=1, sizey=1) # Parameters : x,y--为单个字符起始坐标 # char--为单个字符内容 # color--单个字符的颜色 # Description : 指定起始位置，显示单个字符，当前字体大小为 6*8(width*height) # -------------------------------------------------------------- def tft_showSingleChar(self, x, y, char,color, sizex=1, sizey=1): startchar = terminalfont['start'] endchar = terminalfont['end'] ci = ord(char) print("ci=",ci) if (startchar <= ci <= endchar): width = terminalfont['width'] height = terminalfont['height'] ci = (ci - startchar) * width ch = terminalfont['data'][ci:ci + width] px = x if (sizex <= 1 and sizey <= 1): for c in ch: py = y for _ in range(height): if c & 0x01: self.tft_drawPoint(px, py, color) py += 1 c >>= 1 px += 1 # -------------------------------------------------------------- # Prototype : tft_showString(x,y,string,color,size=1) # Parameters : x,y--为字符串起始坐标 # string--为字符串的内容 # color--字符串的颜色 # Description : 指定起始位置，显示字符串，当前字体大小为 6*8 # -------------------------------------------------------------- def tft_showString(self,x,y,string,color,size=1): width=size*terminalfont['width']-1 px=x for c in string: self.tft_showSingleChar(px,y,c,color,1,1) px+=width if px+width>self.width: y+=terminalfont['height']*size+1 px=x # -------------------------------------------------------------- # Prototype : tft_showSingleCN(x,y,cn,color,mode) # Parameters : x,y为中文/特定英文字符显示的起始坐标， # cn为tft_showSingleCN(x,y,cn,color,mode)传入的cn # color为中文颜色 # mode=0显示16*16中文字体大小，mode=1显示24*24中文字体大小,mode=2显示8*16英文字符 # Description : 显示单个中文字符/特的字体大小的英文字符 ，需要与tft_showSingleCN()配合使用 # -------------------------------------------------------------- def tft_showSingleCN(self,x,y,cn,color,mode): if mode==0: px = x ch=cn[:32] for c in ch: py=y for _ in range(8): if c & 0x01: self.tft_drawPoint(px, py, color) py += 1 c >>= 1 px += 1 if px==(16+x) : px=0+x y=8+y continue if mode==1: px = x ch=cn[:72] for c in ch: py=y for _ in range(8): if c & 0x01: self.tft_drawPoint(px, py, color) py += 1 c >>= 1 px += 1 if px==(24+x) : px=0+x y=8+y continue if mode==2: px = x ch=cn[:16] for c in ch: py=y for _ in range(8): if c & 0x01: self.tft_drawPoint(px, py, color) py += 1 c >>= 1 px += 1 if px==(8+x) : px=0+x y=8+y continue # -------------------------------------------------------------- # Prototype : tft_showCHN(x,y,n,color,mode) # Parameters : x,y为中文/特定英文字符显示的起始坐标， # n为要显示汉字的个数，个数不能超过字库中的汉字个数 # color为中文颜色 # mode=0显示16*16中文字体大小，mode=1显示24*24中文字体大小，mode=2显示8*16英文字符 # Description : 显示中文字符/特定字体大小的英文字符 # -------------------------------------------------------------- def tft_showCHN(self,x,y,n,color,mode): #显示n个汉字/字符串 for i in range(n): if mode==0: cn=F16_16[i*32:(i+1)*32] self.tft_showSingleCN(x,y,cn,color,mode) x+=16 if mode==1: cn=F24_24[i*72:(i+1)*72] self.tft_showSingleCN(x,y,cn,color,mode) x+=24 if mode==2: cn=F8_16[i*16:(i+1)*16] self.tft_showSingleCN(x,y,cn,color,mode) x+=8 # -------------------------------------------------------------- # Prototype : TFTColor(aR, aG, aB) # Parameters : aR, aG, aB, # Description : rgb转换 # -------------------------------------------------------------- def TFTColor(self,aR, aG, aB ) : '''Create a 16 bit rgb value from the given R,G,B from 0-255. This assumes rgb 565 layout and will be incorrect for bgr.''' return ((aR & 0xF8) << 8) | ((aG & 0xFC) << 3) | (aB >> 3) # -------------------------------------------------------------- # Prototype : tft_showBmp(path) # Parameters : path-图片存放的位置 # Description : 显示BMP图片 # -------------------------------------------------------------- def tft_showBmp(self,path): f=open(path,'rb') if f.read(2) == b'BM': #header dummy = f.read(8) #file size(4), creator bytes(4) offset = int.from_bytes(f.read(4), 'little') hdrsize = int.from_bytes(f.read(4), 'little') width = int.from_bytes(f.read(4), 'little') height = int.from_bytes(f.read(4), 'little') if int.from_bytes(f.read(2), 'little') == 1: #planes must be 1 depth = int.from_bytes(f.read(2), 'little') if depth == 24 and int.from_bytes(f.read(4), 'little') == 0:#compress method == uncompressed print("Image size:", width, "x", height) rowsize = (width * 3 + 3) & ~3 if height < 0: height = -height flip = False else: flip = True w, h = width, height if w > 128: w = 128 if h > 160: h = 160 self.tft_setPos(0,0,w - 1,h - 1) for row in range(h): if flip: pos = offset + (height - 1 - row) * rowsize else: pos = offset + row * rowsize if f.tell() != pos: dummy = f.seek(pos) for col in range(w): bgr = f.read(3) self.writeDat_16(self.TFTColor(bgr[2],bgr[1],bgr[0]))- 1
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- font.py
#6*8 terminalfont = { "width": 6, "height": 8, "start": 32, "end": 127, "data": bytearray([ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x5F, 0x06, 0x00, 0x00, 0x07, 0x03, 0x00, 0x07, 0x03, 0x00, 0x24, 0x7E, 0x24, 0x7E, 0x24, 0x00, 0x24, 0x2B, 0x6A, 0x12, 0x00, 0x00, 0x63, 0x13, 0x08, 0x64, 0x63, 0x00, 0x36, 0x49, 0x56, 0x20, 0x50, 0x00, 0x00, 0x07, 0x03, 0x00, 0x00, 0x00, 0x00, 0x3E, 0x41, 0x00, 0x00, 0x00, 0x00, 0x41, 0x3E, 0x00, 0x00, 0x00, 0x08, 0x3E, 0x1C, 0x3E, 0x08, 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08, 0x00, 0x00, 0xE0, 0x60, 0x00, 0x00, 0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, 0x60, 0x60, 0x00, 0x00, 0x00, 0x20, 0x10, 0x08, 0x04, 0x02, 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E, 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00, 0x00, 0x62, 0x51, 0x49, 0x49, 0x46, 0x00, 0x22, 0x49, 0x49, 0x49, 0x36, 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10, 0x00, 0x2F, 0x49, 0x49, 0x49, 0x31, 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30, 0x00, 0x01, 0x71, 0x09, 0x05, 0x03, 0x00, 0x36, 0x49, 0x49, 0x49, 0x36, 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E, 0x00, 0x00, 0x6C, 0x6C, 0x00, 0x00, 0x00, 0x00, 0xEC, 0x6C, 0x00, 0x00, 0x00, 0x08, 0x14, 0x22, 0x41, 0x00, 0x00, 0x24, 0x24, 0x24, 0x24, 0x24, 0x00, 0x00, 0x41, 0x22, 0x14, 0x08, 0x00, 0x02, 0x01, 0x59, 0x09, 0x06, 0x00, 0x3E, 0x41, 0x5D, 0x55, 0x1E, 0x00, 0x7E, 0x11, 0x11, 0x11, 0x7E, 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36, 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22, 0x00, 0x7F, 0x41, 0x41, 0x41, 0x3E, 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41, 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01, 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A, 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F, 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00, 0x00, 0x30, 0x40, 0x40, 0x40, 0x3F, 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41, 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40, 0x00, 0x7F, 0x02, 0x04, 0x02, 0x7F, 0x00, 0x7F, 0x02, 0x04, 0x08, 0x7F, 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E, 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06, 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E, 0x00, 0x7F, 0x09, 0x09, 0x19, 0x66, 0x00, 0x26, 0x49, 0x49, 0x49, 0x32, 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01, 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F, 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F, 0x00, 0x3F, 0x40, 0x3C, 0x40, 0x3F, 0x00, 0x63, 0x14, 0x08, 0x14, 0x63, 0x00, 0x07, 0x08, 0x70, 0x08, 0x07, 0x00, 0x71, 0x49, 0x45, 0x43, 0x00, 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00, 0x00, 0x02, 0x04, 0x08, 0x10, 0x20, 0x00, 0x00, 0x41, 0x41, 0x7F, 0x00, 0x00, 0x04, 0x02, 0x01, 0x02, 0x04, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x03, 0x07, 0x00, 0x00, 0x00, 0x20, 0x54, 0x54, 0x54, 0x78, 0x00, 0x7F, 0x44, 0x44, 0x44, 0x38, 0x00, 0x38, 0x44, 0x44, 0x44, 0x28, 0x00, 0x38, 0x44, 0x44, 0x44, 0x7F, 0x00, 0x38, 0x54, 0x54, 0x54, 0x08, 0x00, 0x08, 0x7E, 0x09, 0x09, 0x00, 0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C, 0x00, 0x7F, 0x04, 0x04, 0x78, 0x00, 0x00, 0x00, 0x00, 0x7D, 0x40, 0x00, 0x00, 0x40, 0x80, 0x84, 0x7D, 0x00, 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00, 0x00, 0x00, 0x00, 0x7F, 0x40, 0x00, 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78, 0x00, 0x7C, 0x04, 0x04, 0x78, 0x00, 0x00, 0x38, 0x44, 0x44, 0x44, 0x38, 0x00, 0xFC, 0x44, 0x44, 0x44, 0x38, 0x00, 0x38, 0x44, 0x44, 0x44, 0xFC, 0x00, 0x44, 0x78, 0x44, 0x04, 0x08, 0x00, 0x08, 0x54, 0x54, 0x54, 0x20, 0x00, 0x04, 0x3E, 0x44, 0x24, 0x00, 0x00, 0x3C, 0x40, 0x20, 0x7C, 0x00, 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C, 0x00, 0x3C, 0x60, 0x30, 0x60, 0x3C, 0x00, 0x6C, 0x10, 0x10, 0x6C, 0x00, 0x00, 0x9C, 0xA0, 0x60, 0x3C, 0x00, 0x00, 0x64, 0x54, 0x54, 0x4C, 0x00, 0x00, 0x08, 0x3E, 0x41, 0x41, 0x00, 0x00, 0x00, 0x00, 0x77, 0x00, 0x00, 0x00, 0x00, 0x41, 0x41, 0x3E, 0x08, 0x00, 0x02, 0x01, 0x02, 0x01, 0x00, 0x00, 0x3C, 0x26, 0x23, 0x26, 0x3C ])} #点阵为：宽x高=16x16 #取模方式：列行式 #阴码 F16_16=[ 0x80,0x70,0x00,0xFF,0x10,0x08,0x00,0x7E,0x2A,0xAA,0x2A,0x2A,0x2A,0x7E,0x00,0x00, 0x80,0x60,0x18,0x07,0x08,0x50,0x42,0x4A,0x52,0x42,0x43,0x42,0x52,0x4A,0x42,0x00, #煜 0x84,0x84,0xFC,0x84,0x84,0x00,0x04,0xC4,0x5F,0x44,0xF4,0x44,0x5F,0xC4,0x04,0x00, 0x10,0x30,0x1F,0x08,0x08,0x00,0x84,0x47,0x24,0x14,0x0F,0x14,0x24,0x47,0x84,0x00, #瑛 0x40,0x3C,0x10,0xFF,0x10,0x10,0x20,0x10,0x8F,0x78,0x08,0xF8,0x08,0xF8,0x00,0x00, 0x02,0x06,0x02,0xFF,0x01,0x01,0x04,0x42,0x21,0x18,0x46,0x81,0x40,0x3F,0x00,0x00, #物 0x02,0xFE,0x92,0x92,0xFE,0x02,0x00,0x10,0x11,0x16,0xF0,0x14,0x13,0x10,0x00,0x00, 0x10,0x1F,0x08,0x08,0xFF,0x04,0x81,0x41,0x31,0x0D,0x03,0x0D,0x31,0x41,0x81,0x00, #联 0x00,0xFE,0x02,0x22,0x42,0x82,0x72,0x02,0x22,0x42,0x82,0x72,0x02,0xFE,0x00,0x00, 0x00,0xFF,0x10,0x08,0x06,0x01,0x0E,0x10,0x08,0x06,0x01,0x4E,0x80,0x7F,0x00,0x00, #网 ] #点阵为：宽x高=24x24 #取模方式：列行式 #阴码 F24_24=[ 0x00,0x00,0x00,0x00,0x00,0xFC,0x00,0x00,0xC0,0x40,0xF8,0xF8,0x48,0x48,0x48,0x48,0x48,0x48,0x48,0xF8,0x08,0x00,0x00,0x00, 0x00,0x08,0x0E,0x00,0x00,0xFF,0x82,0x01,0x00,0x20,0x27,0xA7,0x22,0x22,0x26,0x3A,0x22,0x22,0xE2,0xA3,0x30,0x20,0x00,0x00, 0x00,0x40,0x20,0x18,0x0F,0x01,0x00,0x01,0x27,0x20,0x20,0x20,0x27,0x2E,0x20,0x20,0x38,0x26,0x21,0x20,0x20,0x30,0x20,0x00,#/*"煜",0*/ 0x00,0x10,0x10,0x10,0xF0,0xF0,0x10,0x10,0x10,0x20,0x20,0x20,0xFC,0x20,0xA0,0x20,0x20,0xFC,0x20,0x20,0x20,0x20,0x00,0x00, 0x00,0x04,0x04,0x04,0xFF,0xFF,0x04,0x86,0x84,0x80,0xFC,0x84,0x84,0x84,0xF4,0xFF,0x85,0x84,0x84,0xFC,0x84,0x80,0x80,0x00, 0x00,0x04,0x0C,0x04,0x07,0x03,0x02,0x42,0x41,0x21,0x20,0x10,0x08,0x06,0x03,0x00,0x03,0x04,0x08,0x10,0x30,0x20,0x20,0x00,#/*"瑛",1*/ 0x00,0x00,0x00,0xF0,0x90,0x80,0xFE,0x84,0x80,0x80,0x00,0xC0,0x38,0x2E,0xE0,0x60,0x20,0xA0,0xE0,0x20,0x20,0xE0,0x00,0x00, 0x00,0x8C,0x83,0x80,0x40,0x40,0xFF,0x20,0x10,0x92,0x41,0x20,0x18,0x06,0x01,0xC0,0x78,0x0F,0x01,0x00,0xF0,0xFF,0x00,0x00, 0x00,0x00,0x01,0x00,0x00,0x00,0x7F,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x10,0x10,0x70,0x30,0x30,0x1F,0x01,0x00,0x00,#/*"物",2*/ 0x00,0x08,0x08,0xF8,0x08,0x08,0x08,0x08,0xF8,0x08,0x88,0x80,0x82,0xFC,0xB0,0x80,0x80,0xE0,0x9C,0x8C,0xC4,0x80,0x00,0x00, 0x00,0x00,0x00,0xFF,0x11,0x11,0x11,0x11,0xFF,0x10,0x90,0x10,0x10,0x10,0x10,0xFF,0x3F,0xD0,0x10,0x10,0x10,0x18,0x10,0x00, 0x00,0x00,0x04,0x07,0x02,0x02,0x02,0x01,0x7F,0x41,0x40,0x20,0x10,0x08,0x06,0x01,0x00,0x01,0x06,0x1C,0x30,0x30,0x20,0x00,#/*"联",3*/ 0x00,0x00,0x00,0xF8,0x08,0x88,0x08,0x08,0x08,0xC8,0x88,0x08,0x08,0x08,0x08,0x08,0xC8,0x88,0x08,0x08,0xFC,0x00,0x00,0x00, 0x00,0x00,0x00,0xFF,0x00,0x00,0xC1,0x36,0x0E,0x73,0xE0,0x00,0x01,0xC2,0x3C,0x1C,0x73,0xC0,0x00,0x00,0xFF,0x00,0x00,0x00, 0x00,0x00,0x00,0x7F,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x02,0x01,0x00,0x00,0x00,0x00,0x21,0x20,0x70,0x3F,0x00,0x00,0x00,#/*"网",4*/ ] #点阵为：宽x高=8x16 #取模方式：列行式 #阴码 F8_16=[ 0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,#/*"H",0*/ 0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,#/*"A",1*/ 0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,#/*"A",2*/ 0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,#/*"S",3*/ 0x00,0xF8,0x88,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x20,0x20,0x20,0x11,0x0E,0x00,#/*"5",4*/ 0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,#/*"0",5*/ 0x00,0xE0,0x10,0x88,0x88,0x90,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x20,0x1F,0x00,#/*"6",6*/ ]- 1
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- board.json
{ "name": "haas506", "version": "2.0.0", "io": { "OLED": { "type": "I2C", "port": 1, "addrWidth": 7, "freq": 400000, "mode": "master", "devAddr": 60 }, "KEY1": { "type": "GPIO", "port": 44, "dir": "irq", "pull": "pullup", "intMode": "rising" }, "led1": { "type": "GPIO", "port": 7, "dir": "output", "pull": "pulldown" }, "cs": { "type": "GPIO", "port": 15, "dir": "output", "pull": "pullup" }, "dc":{ "type":"GPIO", "port": 19, "dir": "output", "pull":"pullup" }, "rst":{ "type":"GPIO", "port": 20, "dir": "output", "pull":"pullup" }, "ST7735S": { "type": "SPI", "port": 0, "mode": "master", "freq": 2000000 }, "serial1": { "type": "UART", "port": 0, "dataWidth": 8, "baudRate": 115200, "stopBits": 1, "flowControl": "disable", "parity": "none", "timeout": 1000 }, "serial2": { "type": "UART", "port": 1, "dataWidth": 8, "baudRate": 9600, "stopBits": 1, "flowControl": "disable", "parity": "none", "timeout": 1000 }, "serial3": { "type": "UART", "port": 2, "dataWidth": 8, "baudRate": 115200, "stopBits": 1, "flowControl": "disable", "parity": "none", "timeout": 1000 } }, "debugLevel": "ERROR", "repl": "enable", "replPort": 0 }- 1
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加入图片
图片命名如下，放入程序同一文件夹。
flower64x48.bmp
test128x160.bmp
3.测试结果
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清屏/上电初始化完成
-
画空心圆
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画实心圆
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画三角形
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画像素点/画线
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显示BMP图片
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显示英文字符，大小6*8
4.待解决
- 更换字库后，字符镜像显示问题
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更换字库，字符显示出错
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显示特定大小的英文字符，字体大小：8*16
- 中文字符输出问题
已解决
-
字体大小：24*24
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字体大小：16*16
- 屏幕刷新速率问题
-
-
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- 原文地址：https://blog.csdn.net/w_hizyf_m/article/details/125526985
