#ifndef HW_LIB_ST7796_H #define HW_LIB_ST7796_H #ifdef __cplusplus extern "C" { #endif #include /** * @brief ST7796 Registers */ #define ST7796_NOP 0x00U /* No Operation: NOP */ #define ST7796_SW_RESET 0x01U /* Software reset: SWRESET */ #define ST7796_READ_ID 0x04U /* Read Display ID: RDDID */ #define ST7796_READ_STATUS 0x09U /* Read Display Statu: RDDST */ #define ST7796_READ_POWER_MODE 0x0AU /* Read Display Power: RDDPM */ #define ST7796_READ_MADCTL 0x0BU /* Read Display: RDDMADCTL */ #define ST7796_READ_PIXEL_FORMAT 0x0CU /* Read Display Pixel: RDDCOLMOD */ #define ST7796_READ_IMAGE_MODE 0x0DU /* Read Display Image: RDDIM */ #define ST7796_READ_SIGNAL_MODE 0x0EU /* Read Display Signal: RDDSM */ #define ST7796_SLEEP_IN 0x10U /* Sleep in & booster off: SLPIN */ #define ST7796_SLEEP_OUT 0x11U /* Sleep out & booster on: SLPOUT */ #define ST7796_PARTIAL_DISPLAY_ON 0x12U /* Partial mode on: PTLON */ #define ST7796_NORMAL_DISPLAY_OFF 0x13U /* Partial off (Normal): NORON */ #define ST7796_DISPLAY_INVERSION_OFF 0x20U /* Display inversion off: INVOFF */ #define ST7796_DISPLAY_INVERSION_ON 0x21U /* Display inversion on: INVON */ #define ST7796_GAMMA_SET 0x26U /* Gamma curve select: GAMSET */ #define ST7796_DISPLAY_OFF 0x28U /* Display off: DISPOFF */ #define ST7796_DISPLAY_ON 0x29U /* Display on: DISPON */ #define ST7796_CASET 0x2AU /* Column address set: CASET */ #define ST7796_RASET 0x2BU /* Row address set: RASET */ #define ST7796_WRITE_RAM 0x2CU /* Memory write: RAMWR */ #define ST7796_RGBSET 0x2DU /* LUT for 4k,65k,262k color: RGBSET */ #define ST7796_READ_RAM 0x2EU /* Memory read: RAMRD */ #define ST7796_PTLAR 0x30U /* Partial start/end address set: PTLAR */ #define ST7796_TE_LINE_OFF 0x34U /* Tearing effect line off: TEOFF */ #define ST7796_TE_LINE_ON 0x35U /* Tearing effect mode set & on: TEON */ #define ST7796_MADCTL 0x36U /* Memory data access control: MADCTL */ #define ST7796_IDLE_MODE_OFF 0x38U /* Idle mode off: IDMOFF */ #define ST7796_IDLE_MODE_ON 0x39U /* Idle mode on: IDMON */ #define ST7796_COLOR_MODE 0x3AU /* Interface pixel format: COLMOD */ #define ST7796_FRAME_RATE_CTRL1 0xB1U /* In normal mode (Full colors): FRMCTR1 */ #define ST7796_FRAME_RATE_CTRL2 0xB2U /* In Idle mode (8-colors): FRMCTR2 */ #define ST7796_FRAME_RATE_CTRL3 0xB3U /* In partial mode + Full colors: FRMCTR3 */ #define ST7796_FRAME_INVERSION_CTRL 0xB4U /* Display inversion control: INVCTR */ #define ST7796_DISPLAY_SETTING 0xB6U /* Display function setting */ #define ST7796_ENTRY_MODE_SET 0xB7U /* Entry Mode Set: EM */ #define ST7796_PWR_CTRL1 0xC0U /* Power control setting: PWCTR1 */ #define ST7796_PWR_CTRL2 0xC1U /* Power control setting: PWCTR2 */ #define ST7796_PWR_CTRL3 0xC2U /* In normal mode (Full colors): PWCTR3 */ #define ST7796_PWR_CTRL4 0xC3U /* In Idle mode (8-colors): PWCTR4 */ #define ST7796_PWR_CTRL5 0xC4U /* In partial mode + Full colors: PWCTR5 */ #define ST7796_VCOMH_VCOML_CTRL1 0xC5U /* VCOM control 1: VMCTR1 */ #define ST7796_VMOF_CTRL 0xC7U /* Set VCOM offset control: VMOFCTR */ #define ST7796_WRID2 0xD1U /* Set LCM version code: WRID2 */ #define ST7796_WRID3 0xD2U /* Customer Project code: WRID3 */ #define ST7796_NV_CTRL1 0xD9U /* NVM control status: NVCTR1 */ #define ST7796_READ_ID1 0xDAU /* Read ID1: RDID1 */ #define ST7796_READ_ID2 0xDBU /* Read ID2: RDID2 */ #define ST7796_READ_ID3 0xDCU /* Read ID3: RDID3 */ #define ST7796_READ_ID4 0xD3U /* Read ID4: RDID4 */ #define ST7796_NV_CTRL2 0xDEU /* NVM Read Command: NVCTR2 */ #define ST7796_NV_CTRL3 0xDFU /* NVM Write Command: NVCTR3 */ #define ST7796_PV_GAMMA_CTRL 0xE0U /* Set Gamma adjustment (+ polarity): GAMCTRP1 */ #define ST7796_NV_GAMMA_CTRL 0xE1U /* Set Gamma adjustment (- polarity): GAMCTRN1 */ #define ST7796_DISPLAY_OUTPUT_CTRL_ADJUST 0xE8U /* Display Output Ctrl Adjust: DOCA */ #define ST7796_EXT_CTRL 0xF0U /* Extension command control */ #define ST7796_PWR_CTRL6 0xFCU /* In partial mode + Idle mode: PWCTR6 */ #define ST7796_VCOM4_LEVEL 0xFFU /* VCOM 4 level control */ /** * @brief ST7735 ID */ #define ST7796_ID 0xACU /** * @brief ST7735 4.0 inch Size */ #define ST7796_4_0_WIDTH 320U #define ST7796_4_0_HEIGHT 480U /** * @brief LCD_OrientationTypeDef * Possible values of Display Orientation */ #define ST7796_ORIENTATION_PORTRAIT 0x00U /* 液晶屏纵向选择 */ #define ST7796_ORIENTATION_PORTRAIT_ROT180 0x01U /* 纵向旋转 180° 方向 液晶屏选择 */ #define ST7796_ORIENTATION_LANDSCAPE 0x02U /* 液晶屏横向选择 */ #define ST7796_ORIENTATION_LANDSCAPE_ROT180 0x03U /* 横向旋转 180° 方向 液晶屏选择 */ /** * @brief Possible values of pixel data format (ie color coding) */ #define ST7796_FORMAT_RBG444 0x03U /* Pixel format chosen is RGB444 : 12 bpp */ #define ST7796_FORMAT_RBG565 0x55U /* Pixel format chosen is RGB565 : 16 bpp */ #define ST7796_FORMAT_RBG666 0x06U /* Pixel format chosen is RGB666 : 18 bpp */ #define ST7796_FORMAT_DEFAULT ST7796_FORMAT_RBG565 /** * @brief LCD RGB or BGR */ #define ST7796_RGB 0x00U #define ST7796_BGR 0x08U #define ST7796_X_OFFSET 0 #define ST7796_Y_OFFSET 0 #define ST7796_DIR_MASK(dir) st7796dirTab[dir][0] | ST7796_BGR const uint8_t st7796dirTab[4][2] = { {0x40U, 0xC0U}, /* 液晶屏纵向选择 */ {0x80U, 0x00U}, /* 液晶屏纵向旋转 180° 方向选择 */ {0x20U, 0x60U}, /* 液晶屏横向选择 */ {0xE0U, 0xA0U}, /* 液晶屏横向旋转 180° 方向选择 */ }; const uint8_t st7796initcmd[] = { 0x81, ST7796_SW_RESET, 0x81, ST7796_SW_RESET, 2, ST7796_SLEEP_OUT, 0x00, 2, ST7796_EXT_CTRL, 0xc3, 2, ST7796_EXT_CTRL, 0x96, 2, ST7796_MADCTL, 0x48, 2, ST7796_COLOR_MODE, ST7796_FORMAT_DEFAULT, 2, ST7796_FRAME_INVERSION_CTRL, 0x01, 2, ST7796_ENTRY_MODE_SET, 0xC6, 9, ST7796_DISPLAY_OUTPUT_CTRL_ADJUST, 0x40, 0x8a, 0x00, 0x00, 0x29, 0x19, 0xa5, 0x33, 2, ST7796_PWR_CTRL2, 0x06, 2, ST7796_PWR_CTRL3, 0xa7, 2, ST7796_VCOMH_VCOML_CTRL1, 0x18, 15, ST7796_PV_GAMMA_CTRL, 0xf0, 0x09, 0x0b, 0x06, 0x04, 0x15, 0x2f, 0x54, 0x42, 0x3c, 0x17, 0x14, 0x18, 0x1b, 15, ST7796_NV_GAMMA_CTRL, 0xf0, 0x09, 0x0b, 0x06, 0x04, 0x03, 0x2d, 0x43, 0x42, 0x3b, 0x16, 0x14, 0x17, 0x1b, 2, ST7796_EXT_CTRL, 0x3c, 2, ST7796_EXT_CTRL, 0x69, 0x81, ST7796_DISPLAY_INVERSION_ON, 0x81, ST7796_DISPLAY_ON, 0x00 }; #define ST7796_ReadID(dev, id) do{\ if (dev->id==ST7796_ID){ \ uint8_t tmp[3] = {};\ dev->writeReg(ST7796_READ_ID1,&tmp[0],1);\ dev->writeReg(ST7796_READ_ID2,&tmp[1],1);\ dev->writeReg(ST7796_READ_ID3,&tmp[2],1);\ id = ((uint32_t) tmp[2]) << 0 | ((uint32_t) tmp[1]) << 8 | ((uint32_t) tmp[0]) << 16;}\ }while(0) #define ST7796_SetDir(dev, dir) do{\ if (dev->id==ST7796_ID){ \ if((dir == ST7796_ORIENTATION_PORTRAIT) || (dir == ST7796_ORIENTATION_PORTRAIT_ROT180))\ {\ dev->width = ST7796_4_0_WIDTH;\ dev->height = ST7796_4_0_HEIGHT;\ }\ else\ {\ dev->width = ST7796_4_0_HEIGHT;\ dev->height = ST7796_4_0_WIDTH;\ } \ tmp = ST7796_DIR_MASK(dir);\ dev->writeReg(ST7796_MADCTL,&tmp,1);} \ }while(0) #define ST7796_OFFSET(dev, x, y) do{ \ if (dev->id==ST7735_ID){\ if (dev->dir <= LONGITUDINAL_180) { \ x += ST7796_X_OFFSET;\ y += ST7796_Y_OFFSET;\ } else {\ x += ST7796_Y_OFFSET;\ y += ST7796_X_OFFSET;\ }\ }\ }while(0) #define ST7796_ReadRam(dev, rec) do{ \ if(dev->id==ST7796_ID){ \ dev->readReg(ST7796_READ_RAM,&tmp,1);\ dev->recvData(&tmp,1);\ dev->recvData(&pixel_lsb,1);\ dev->recvData(&pixel_msb,1);\ rec.color=((uint32_t)(pixel_lsb)) + ((uint32_t)(pixel_msb) << 8);\ }\ }while(0) #ifdef __cplusplus } #endif #endif //HW_LIB_ST7796_H