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