rt-thread/bsp/stm32f429-disco/drivers/drv_lcd.c

1061 lines
30 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* File : drv_lcd.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2009 RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2018-09-13 xuzhuoyi first implementation
*/
#include "drv_lcd.h"
#include <finsh.h>
//#define DEBUG
#ifdef DEBUG
#define DEBUG_PRINTF(...) rt_kprintf(__VA_ARGS__)
#else
#define DEBUG_PRINTF(...)
#endif
typedef struct
{
rt_uint16_t width; //LCD 宽度
rt_uint16_t height; //LCD 高度
rt_uint16_t id; //LCD ID
rt_uint8_t dir; //横屏还是竖屏控制0竖屏1横屏。
rt_uint16_t wramcmd; //开始写gram指令
rt_uint16_t setxcmd; //设置x坐标指令
rt_uint16_t setycmd; //设置y坐标指令
} lcd_info_t;
typedef struct
{
volatile rt_uint16_t reg;
volatile rt_uint16_t ram;
} lcd_ili9341_t;
//使用NOR/SRAM的 Bank1.sector1,地址位HADDR[27,26]=00 A18作为数据命令区分线
//注意设置时STM32内部会右移一位对其!
#define LCD_ILI9341_BASE ((rt_uint32_t)(0x60000000 | 0x0007FFFE))
#define ili9341 ((lcd_ili9341_t *) LCD_ILI9341_BASE)
//////////////////////////////////////////////////////////////////////////////////
//扫描方向定义
#define L2R_U2D 0 //从左到右,从上到下
#define L2R_D2U 1 //从左到右,从下到上
#define R2L_U2D 2 //从右到左,从上到下
#define R2L_D2U 3 //从右到左,从下到上
#define U2D_L2R 4 //从上到下,从左到右
#define U2D_R2L 5 //从上到下,从右到左
#define D2U_L2R 6 //从下到上,从左到右
#define D2U_R2L 7 //从下到上,从右到左
#define DFT_SCAN_DIR L2R_U2D //默认的扫描方向
static lcd_info_t lcddev;
LTDC_HandleTypeDef LtdcHandler;
static RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/* Default LCD configuration with LCD Layer 1 */
static uint32_t ActiveLayer = 0;
SPI_HandleTypeDef hspi5;
static SPI_HandleTypeDef SpiHandle;
void delay_us(rt_uint32_t nus)
{
//rt_thread_delay(1);
while (nus--) {
__NOP();
}
}
void delay_ms(rt_uint32_t nms)
{
//rt_thread_delay((RT_TICK_PER_SECOND * nms + 999) / 1000);
while (nms--)
{
int i;
for (i = 0; i < 10000; i++)
{
__NOP();
}
}
}
/**
* @brief SPI MSP Init.
* @param hspi: SPI handle
*/
static void SPIx_MspInit(SPI_HandleTypeDef *hspi)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable SPIx clock */
DISCOVERY_SPIx_CLK_ENABLE();
/* Enable DISCOVERY_SPI GPIO clock */
DISCOVERY_SPIx_GPIO_CLK_ENABLE();
/* configure SPI SCK, MOSI and MISO */
GPIO_InitStructure.Pin = (DISCOVERY_SPIx_SCK_PIN | DISCOVERY_SPIx_MOSI_PIN | DISCOVERY_SPIx_MISO_PIN);
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_PULLDOWN;
GPIO_InitStructure.Speed = GPIO_SPEED_MEDIUM;
GPIO_InitStructure.Alternate = DISCOVERY_SPIx_AF;
HAL_GPIO_Init(DISCOVERY_SPIx_GPIO_PORT, &GPIO_InitStructure);
}
/**
* @brief Selects the LCD Layer.
* @param LayerIndex: the Layer foreground or background.
*/
void BSP_LCD_SelectLayer(uint32_t LayerIndex)
{
ActiveLayer = LayerIndex;
}
/**
* @brief Initializes the LTDC MSP.
*/
__weak void BSP_LCD_MspInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable the LTDC and DMA2D Clock */
__HAL_RCC_LTDC_CLK_ENABLE();
__HAL_RCC_DMA2D_CLK_ENABLE();
/* Enable GPIOs clock */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
/* GPIOs Configuration */
/*
+------------------------+-----------------------+----------------------------+
+ LCD pins assignment +
+------------------------+-----------------------+----------------------------+
| LCD_TFT R2 <-> PC.10 | LCD_TFT G2 <-> PA.06 | LCD_TFT B2 <-> PD.06 |
| LCD_TFT R3 <-> PB.00 | LCD_TFT G3 <-> PG.10 | LCD_TFT B3 <-> PG.11 |
| LCD_TFT R4 <-> PA.11 | LCD_TFT G4 <-> PB.10 | LCD_TFT B4 <-> PG.12 |
| LCD_TFT R5 <-> PA.12 | LCD_TFT G5 <-> PB.11 | LCD_TFT B5 <-> PA.03 |
| LCD_TFT R6 <-> PB.01 | LCD_TFT G6 <-> PC.07 | LCD_TFT B6 <-> PB.08 |
| LCD_TFT R7 <-> PG.06 | LCD_TFT G7 <-> PD.03 | LCD_TFT B7 <-> PB.09 |
-------------------------------------------------------------------------------
| LCD_TFT HSYNC <-> PC.06 | LCDTFT VSYNC <-> PA.04 |
| LCD_TFT CLK <-> PG.07 | LCD_TFT DE <-> PF.10 |
-----------------------------------------------------
*/
/* GPIOA configuration */
GPIO_InitStructure.Pin = GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_6 |
GPIO_PIN_11 | GPIO_PIN_12;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
GPIO_InitStructure.Alternate= GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
/* GPIOB configuration */
GPIO_InitStructure.Pin = GPIO_PIN_8 | \
GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11;
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
/* GPIOC configuration */
GPIO_InitStructure.Pin = GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_10;
HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
/* GPIOD configuration */
GPIO_InitStructure.Pin = GPIO_PIN_3 | GPIO_PIN_6;
HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
/* GPIOF configuration */
GPIO_InitStructure.Pin = GPIO_PIN_10;
HAL_GPIO_Init(GPIOF, &GPIO_InitStructure);
/* GPIOG configuration */
GPIO_InitStructure.Pin = GPIO_PIN_6 | GPIO_PIN_7 | \
GPIO_PIN_11;
HAL_GPIO_Init(GPIOG, &GPIO_InitStructure);
/* GPIOB configuration */
GPIO_InitStructure.Pin = GPIO_PIN_0 | GPIO_PIN_1;
GPIO_InitStructure.Alternate= GPIO_AF9_LTDC;
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
/* GPIOG configuration */
GPIO_InitStructure.Pin = GPIO_PIN_10 | GPIO_PIN_12;
HAL_GPIO_Init(GPIOG, &GPIO_InitStructure);
}
/**
* @brief SPIx error treatment function.
*/
static void SPIx_Error(void)
{
/* De-initialize the SPI communication BUS */
HAL_SPI_DeInit(&hspi5);
/* Re- Initialize the SPI communication BUS */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
//_Error_Handler(__FILE__, __LINE__);
}
}
/**
* @brief Writes a byte to device.
* @param Value: value to be written
*/
static void SPIx_Write(uint16_t Value)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_SPI_Transmit(&hspi5, (uint8_t*) &Value, 1, 0x1000);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initialize the BUS */
SPIx_Error();
}
}
/**
* @brief Reads 4 bytes from device.
* @param ReadSize: Number of bytes to read (max 4 bytes)
* @retval Value read on the SPI
*/
static uint32_t SPIx_Read(uint8_t ReadSize)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t readvalue;
status = HAL_SPI_Receive(&hspi5, (uint8_t*) &readvalue, ReadSize, 0x1000);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initialize the BUS */
SPIx_Error();
}
return readvalue;
}
/**
* @brief Configures the LCD_SPI interface.
*/
void LCD_IO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure NCS in Output Push-Pull mode */
LCD_WRX_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = LCD_WRX_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
HAL_GPIO_Init(LCD_WRX_GPIO_PORT, &GPIO_InitStructure);
LCD_RDX_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = LCD_RDX_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
HAL_GPIO_Init(LCD_RDX_GPIO_PORT, &GPIO_InitStructure);
/* Configure the LCD Control pins ----------------------------------------*/
LCD_NCS_GPIO_CLK_ENABLE();
/* Configure NCS in Output Push-Pull mode */
GPIO_InitStructure.Pin = LCD_NCS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
HAL_GPIO_Init(LCD_NCS_GPIO_PORT, &GPIO_InitStructure);
/* Set or Reset the control line */
LCD_CS_LOW();
LCD_CS_HIGH();
/* SPI configuration -----------------------------------------------------*/
SpiHandle.Instance = DISCOVERY_SPIx;
/* SPI baudrate is set to 5.6 MHz (PCLK2/SPI_BaudRatePrescaler = 90/16 = 5.625 MHz)
to verify these constraints:
- ILI9341 LCD SPI interface max baudrate is 10MHz for write and 6.66MHz for read
- l3gd20 SPI interface max baudrate is 10MHz for write/read
- PCLK2 frequency is set to 90 MHz
*/
SpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
/* On STM32F429I-Discovery, LCD ID cannot be read then keep a common configuration */
/* for LCD and GYRO (SPI_DIRECTION_2LINES) */
/* Note: To read a register a LCD, SPI_DIRECTION_1LINE should be set */
SpiHandle.Init.Direction = SPI_DIRECTION_2LINES;
SpiHandle.Init.CLKPhase = SPI_PHASE_1EDGE;
SpiHandle.Init.CLKPolarity = SPI_POLARITY_LOW;
SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
SpiHandle.Init.CRCPolynomial = 7;
SpiHandle.Init.DataSize = SPI_DATASIZE_8BIT;
SpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;
SpiHandle.Init.NSS = SPI_NSS_SOFT;
SpiHandle.Init.TIMode = SPI_TIMODE_DISABLED;
SpiHandle.Init.Mode = SPI_MODE_MASTER;
SPIx_MspInit(&SpiHandle);
HAL_SPI_Init(&SpiHandle);
}
/**
* @brief Writes to the selected LCD register.
* @param LCD_Reg: address of the selected register.
* @retval None
*/
void ili9341_WriteReg(uint8_t LCD_Reg)
{
/* Reset WRX to send command */
LCD_WRX_LOW();
/* Reset LCD control line(/CS) and Send command */
LCD_CS_LOW();
SPIx_Write(LCD_Reg);
/* Deselect: Chip Select high */
LCD_CS_HIGH();
}
/**
* @brief Writes data to the selected LCD register.
* @param LCD_Reg: address of the selected register.
* @retval None
*/
void ili9341_WriteData(uint16_t RegValue)
{
/* Set WRX to send data */
LCD_WRX_HIGH();
/* Reset LCD control line(/CS) and Send data */
LCD_CS_LOW();
SPIx_Write(RegValue);
/* Deselect: Chip Select high */
LCD_CS_HIGH();
}
/**
* @brief Reads the selected LCD Register.
* @param RegValue: Address of the register to read
* @param ReadSize: Number of bytes to read
* @retval LCD Register Value.
*/
uint32_t ili9341_ReadData(uint16_t RegValue, uint8_t ReadSize)
{
uint32_t readvalue = 0;
/* Select: Chip Select low */
LCD_CS_LOW();
/* Reset WRX to send command */
LCD_WRX_LOW();
SPIx_Write(RegValue);
readvalue = SPIx_Read(ReadSize);
/* Set WRX to send data */
LCD_WRX_HIGH();
/* Deselect: Chip Select high */
LCD_CS_HIGH();
return readvalue;
}
/**
* @brief Enables the Display.
*/
void BSP_LCD_DisplayOn(void)
{
/* Display On */
ili9341_WriteReg(LCD_DISPLAY_ON);
}
/**
* @brief Disables the Display.
*/
void BSP_LCD_DisplayOff(void)
{
/* Display Off */
ili9341_WriteReg(LCD_DISPLAY_OFF);
}
void ili9341_Init(void)
{
/* Initialize ILI9341 low level bus layer ----------------------------------*/
LCD_IO_Init();
/* Configure LCD */
ili9341_WriteReg(0xCA);
ili9341_WriteData(0xC3);
ili9341_WriteData(0x08);
ili9341_WriteData(0x50);
ili9341_WriteReg(LCD_POWERB);
ili9341_WriteData(0x00);
ili9341_WriteData(0xC1);
ili9341_WriteData(0x30);
ili9341_WriteReg(LCD_POWER_SEQ);
ili9341_WriteData(0x64);
ili9341_WriteData(0x03);
ili9341_WriteData(0x12);
ili9341_WriteData(0x81);
ili9341_WriteReg(LCD_DTCA);
ili9341_WriteData(0x85);
ili9341_WriteData(0x00);
ili9341_WriteData(0x78);
ili9341_WriteReg(LCD_POWERA);
ili9341_WriteData(0x39);
ili9341_WriteData(0x2C);
ili9341_WriteData(0x00);
ili9341_WriteData(0x34);
ili9341_WriteData(0x02);
ili9341_WriteReg(LCD_PRC);
ili9341_WriteData(0x20);
ili9341_WriteReg(LCD_DTCB);
ili9341_WriteData(0x00);
ili9341_WriteData(0x00);
ili9341_WriteReg(LCD_FRMCTR1);
ili9341_WriteData(0x00);
ili9341_WriteData(0x1B);
ili9341_WriteReg(LCD_DFC);
ili9341_WriteData(0x0A);
ili9341_WriteData(0xA2);
ili9341_WriteReg(LCD_POWER1);
ili9341_WriteData(0x10);
ili9341_WriteReg(LCD_POWER2);
ili9341_WriteData(0x10);
ili9341_WriteReg(LCD_VCOM1);
ili9341_WriteData(0x45);
ili9341_WriteData(0x15);
ili9341_WriteReg(LCD_VCOM2);
ili9341_WriteData(0x90);
ili9341_WriteReg(LCD_MAC);
ili9341_WriteData(0xC8);
ili9341_WriteReg(LCD_3GAMMA_EN);
ili9341_WriteData(0x00);
ili9341_WriteReg(LCD_RGB_INTERFACE);
ili9341_WriteData(0xC2);
ili9341_WriteReg(LCD_DFC);
ili9341_WriteData(0x0A);
ili9341_WriteData(0xA7);
ili9341_WriteData(0x27);
ili9341_WriteData(0x04);
/* Colomn address set */
ili9341_WriteReg(LCD_COLUMN_ADDR);
ili9341_WriteData(0x00);
ili9341_WriteData(0x00);
ili9341_WriteData(0x00);
ili9341_WriteData(0xEF);
/* Page address set */
ili9341_WriteReg(LCD_PAGE_ADDR);
ili9341_WriteData(0x00);
ili9341_WriteData(0x00);
ili9341_WriteData(0x01);
ili9341_WriteData(0x3F);
ili9341_WriteReg(LCD_INTERFACE);
ili9341_WriteData(0x01);
ili9341_WriteData(0x00);
ili9341_WriteData(0x06);
ili9341_WriteReg(LCD_GRAM);
delay_ms(200);
ili9341_WriteReg(LCD_GAMMA);
ili9341_WriteData(0x01);
ili9341_WriteReg(LCD_PGAMMA);
ili9341_WriteData(0x0F);
ili9341_WriteData(0x29);
ili9341_WriteData(0x24);
ili9341_WriteData(0x0C);
ili9341_WriteData(0x0E);
ili9341_WriteData(0x09);
ili9341_WriteData(0x4E);
ili9341_WriteData(0x78);
ili9341_WriteData(0x3C);
ili9341_WriteData(0x09);
ili9341_WriteData(0x13);
ili9341_WriteData(0x05);
ili9341_WriteData(0x17);
ili9341_WriteData(0x11);
ili9341_WriteData(0x00);
ili9341_WriteReg(LCD_NGAMMA);
ili9341_WriteData(0x00);
ili9341_WriteData(0x16);
ili9341_WriteData(0x1B);
ili9341_WriteData(0x04);
ili9341_WriteData(0x11);
ili9341_WriteData(0x07);
ili9341_WriteData(0x31);
ili9341_WriteData(0x33);
ili9341_WriteData(0x42);
ili9341_WriteData(0x05);
ili9341_WriteData(0x0C);
ili9341_WriteData(0x0A);
ili9341_WriteData(0x28);
ili9341_WriteData(0x2F);
ili9341_WriteData(0x0F);
ili9341_WriteReg(LCD_SLEEP_OUT);
delay_ms(200);
ili9341_WriteReg(LCD_DISPLAY_ON);
/* GRAM start writing */
ili9341_WriteReg(LCD_GRAM);
}
/**
* @brief Initializes the LCD layers.
* @param LayerIndex: the layer foreground or background.
* @param FB_Address: the layer frame buffer.
*/
void BSP_LCD_LayerDefaultInit(uint16_t LayerIndex, uint32_t FB_Address)
{
LTDC_LayerCfgTypeDef Layercfg;
/* Layer Init */
Layercfg.WindowX0 = 0;
Layercfg.WindowX1 = 240;
Layercfg.WindowY0 = 0;
Layercfg.WindowY1 = 320;
Layercfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
Layercfg.FBStartAdress = FB_Address;
Layercfg.Alpha = 255;
Layercfg.Alpha0 = 0;
Layercfg.Backcolor.Blue = 0;
Layercfg.Backcolor.Green = 0;
Layercfg.Backcolor.Red = 0;
Layercfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
Layercfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
Layercfg.ImageWidth = 240;
Layercfg.ImageHeight = 320;
HAL_LTDC_ConfigLayer(&LtdcHandler, &Layercfg, LayerIndex);
//DrawProp[LayerIndex].BackColor = LCD_COLOR_WHITE;
//DrawProp[LayerIndex].pFont = &Font24;
//DrawProp[LayerIndex].TextColor = LCD_COLOR_BLACK;
/* Dithering activation */
HAL_LTDC_EnableDither(&LtdcHandler);
}
uint8_t BSP_LCD_Init(void)
{
/* On STM32F429I-DISCO, it is not possible to read ILI9341 ID because */
/* PIN EXTC is not connected to VDD and then LCD_READ_ID4 is not accessible. */
/* In this case, ReadID function is bypassed.*/
/*if(ili9341_drv.ReadID() == ILI9341_ID)*/
/* LTDC Configuration ----------------------------------------------------*/
LtdcHandler.Instance = LTDC;
/* Timing configuration (Typical configuration from ILI9341 datasheet)
HSYNC=10 (9+1)
HBP=20 (29-10+1)
ActiveW=240 (269-20-10+1)
HFP=10 (279-240-20-10+1)
VSYNC=2 (1+1)
VBP=2 (3-2+1)
ActiveH=320 (323-2-2+1)
VFP=4 (327-320-2-2+1)
*/
/* Configure horizontal synchronization width */
LtdcHandler.Init.HorizontalSync = ILI9341_HSYNC;
/* Configure vertical synchronization height */
LtdcHandler.Init.VerticalSync = ILI9341_VSYNC;
/* Configure accumulated horizontal back porch */
LtdcHandler.Init.AccumulatedHBP = ILI9341_HBP;
/* Configure accumulated vertical back porch */
LtdcHandler.Init.AccumulatedVBP = ILI9341_VBP;
/* Configure accumulated active width */
LtdcHandler.Init.AccumulatedActiveW = 269;
/* Configure accumulated active height */
LtdcHandler.Init.AccumulatedActiveH = 323;
/* Configure total width */
LtdcHandler.Init.TotalWidth = 279;
/* Configure total height */
LtdcHandler.Init.TotalHeigh = 327;
/* Configure R,G,B component values for LCD background color */
LtdcHandler.Init.Backcolor.Red= 0;
LtdcHandler.Init.Backcolor.Blue= 0;
LtdcHandler.Init.Backcolor.Green= 0;
/* LCD clock configuration */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 192 Mhz */
/* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 192/4 = 48 Mhz */
/* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_8 = 48/4 = 6Mhz */
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 192;
PeriphClkInitStruct.PLLSAI.PLLSAIR = 4;
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_8;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Polarity */
LtdcHandler.Init.HSPolarity = LTDC_HSPOLARITY_AL;
LtdcHandler.Init.VSPolarity = LTDC_VSPOLARITY_AL;
LtdcHandler.Init.DEPolarity = LTDC_DEPOLARITY_AL;
LtdcHandler.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
BSP_LCD_MspInit();
HAL_LTDC_Init(&LtdcHandler);
/* Select the device */
//LcdDrv = &ili9341_drv;
/* LCD Init */
ili9341_Init();
/* Initialize the SDRAM */
//BSP_SDRAM_Init();
/* Initialize the font */
//BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
return 0;
}
void BSP_LCD_DrawPixel(uint16_t Xpos, uint16_t Ypos, uint32_t RGB_Code)
{
/* Write data value to all SDRAM memory */
*(__IO uint32_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*240 + Xpos))) = RGB_Code;
}
void BSP_LCD_DrawLine(uint32_t pixel, uint16_t X1, uint16_t Y1, uint16_t X2, uint16_t Y2)
{
int16_t deltax = 0, deltay = 0, x = 0, y = 0, xinc1 = 0, xinc2 = 0,
yinc1 = 0, yinc2 = 0, den = 0, num = 0, numadd = 0, numpixels = 0,
curpixel = 0;
deltax = ABS(X2 - X1); /* The difference between the x's */
deltay = ABS(Y2 - Y1); /* The difference between the y's */
x = X1; /* Start x off at the first pixel */
y = Y1; /* Start y off at the first pixel */
if (X2 >= X1) /* The x-values are increasing */
{
xinc1 = 1;
xinc2 = 1;
}
else /* The x-values are decreasing */
{
xinc1 = -1;
xinc2 = -1;
}
if (Y2 >= Y1) /* The y-values are increasing */
{
yinc1 = 1;
yinc2 = 1;
}
else /* The y-values are decreasing */
{
yinc1 = -1;
yinc2 = -1;
}
if (deltax >= deltay) /* There is at least one x-value for every y-value */
{
xinc1 = 0; /* Don't change the x when numerator >= denominator */
yinc2 = 0; /* Don't change the y for every iteration */
den = deltax;
num = deltax / 2;
numadd = deltay;
numpixels = deltax; /* There are more x-values than y-values */
}
else /* There is at least one y-value for every x-value */
{
xinc2 = 0; /* Don't change the x for every iteration */
yinc1 = 0; /* Don't change the y when numerator >= denominator */
den = deltay;
num = deltay / 2;
numadd = deltax;
numpixels = deltay; /* There are more y-values than x-values */
}
for (curpixel = 0; curpixel <= numpixels; curpixel++)
{
BSP_LCD_DrawPixel(x, y, pixel); /* Draw the current pixel */
num += numadd; /* Increase the numerator by the top of the fraction */
if (num >= den) /* Check if numerator >= denominator */
{
num -= den; /* Calculate the new numerator value */
x += xinc1; /* Change the x as appropriate */
y += yinc1; /* Change the y as appropriate */
}
x += xinc2; /* Change the x as appropriate */
y += yinc2; /* Change the y as appropriate */
}
}
rt_uint16_t ili9341_bgr2rgb(rt_uint16_t value)
{
rt_uint16_t red, green, blue;
blue = (value >> 0) & 0x1f;
green = (value >> 5) & 0x3f;
red = (value >> 11) & 0x1f;
return (blue << 11) + (green << 5) + (red << 0);
}
//static void ili9341_set_scan_direction(rt_uint8_t dir)
//{
// rt_uint16_t regval = 0;
// rt_uint16_t dirreg = 0;
// rt_uint16_t temp;
// switch (dir)
// {
// case L2R_U2D://从左到右,从上到下
// regval |= (0 << 7) | (0 << 6) | (0 << 5);
// break;
// case L2R_D2U://从左到右,从下到上
// regval |= (1 << 7) | (0 << 6) | (0 << 5);
// break;
// case R2L_U2D://从右到左,从上到下
// regval |= (0 << 7) | (1 << 6) | (0 << 5);
// break;
// case R2L_D2U://从右到左,从下到上
// regval |= (1 << 7) | (1 << 6) | (0 << 5);
// break;
// case U2D_L2R://从上到下,从左到右
// regval |= (0 << 7) | (0 << 6) | (1 << 5);
// break;
// case U2D_R2L://从上到下,从右到左
// regval |= (0 << 7) | (1 << 6) | (1 << 5);
// break;
// case D2U_L2R://从下到上,从左到右
// regval |= (1 << 7) | (0 << 6) | (1 << 5);
// break;
// case D2U_R2L://从下到上,从右到左
// regval |= (1 << 7) | (1 << 6) | (1 << 5);
// break;
// }
// dirreg = 0X36;
// ili9341_write_reg_with_value(dirreg, regval);
// if (regval & 0X20)
// {
// if (lcddev.width < lcddev.height)//交换X,Y
// {
// temp = lcddev.width;
// lcddev.width = lcddev.height;
// lcddev.height = temp;
// }
// }
// else
// {
// if (lcddev.width > lcddev.height)//交换X,Y
// {
// temp = lcddev.width;
// lcddev.width = lcddev.height;
// lcddev.height = temp;
// }
// }
//
// ili9341_write_reg(lcddev.setxcmd);
// ili9341_write_data(0);
// ili9341_write_data(0);
// ili9341_write_data((lcddev.width - 1) >> 8);
// ili9341_write_data((lcddev.width - 1) & 0XFF);
// ili9341_write_reg(lcddev.setycmd);
// ili9341_write_data(0);
// ili9341_write_data(0);
// ili9341_write_data((lcddev.height - 1) >> 8);
// ili9341_write_data((lcddev.height - 1) & 0XFF);
//}
//void ili9341_set_backlight(rt_uint8_t pwm)
//{
// ili9341_write_reg(0xBE);
// ili9341_write_data(0x05);
// ili9341_write_data(pwm*2.55);
// ili9341_write_data(0x01);
// ili9341_write_data(0xFF);
// ili9341_write_data(0x00);
// ili9341_write_data(0x00);
//}
//void ili9341_set_display_direction(rt_uint8_t dir)
//{
// lcddev.dir = dir;
// if (dir == 0)
// {
// lcddev.width = 240;
// lcddev.height = 320;
// }
// else
// {
// lcddev.width = 320;
// lcddev.height = 240;
// }
// lcddev.wramcmd = 0X2C;
// lcddev.setxcmd = 0X2A;
// lcddev.setycmd = 0X2B;
// ili9341_set_scan_direction(DFT_SCAN_DIR);
//}
void _lcd_low_level_init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, CSX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = CSX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
BSP_LCD_Init();
BSP_LCD_LayerDefaultInit(0,0xD0000000);
BSP_LCD_SelectLayer(0);
BSP_LCD_DisplayOn();
lcddev.width = 240;
lcddev.height = 320;
//ili9341_set_display_direction(0);
//HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET);
}
static rt_err_t lcd_init(rt_device_t dev)
{
return RT_EOK;
}
static rt_err_t lcd_open(rt_device_t dev, rt_uint16_t oflag)
{
return RT_EOK;
}
static rt_err_t lcd_close(rt_device_t dev)
{
return RT_EOK;
}
static rt_err_t lcd_control(rt_device_t dev, int cmd, void *args)
{
switch (cmd)
{
case RTGRAPHIC_CTRL_GET_INFO:
{
struct rt_device_graphic_info *info;
info = (struct rt_device_graphic_info*) args;
RT_ASSERT(info != RT_NULL);
info->bits_per_pixel = 16;
info->pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
info->framebuffer = RT_NULL;
info->width = 240;
info->height = 320;
}
break;
case RTGRAPHIC_CTRL_RECT_UPDATE:
/* nothong to be done */
break;
default:
break;
}
return RT_EOK;
}
static void ili9341_lcd_set_pixel(const char* pixel, int x, int y)
{
*(__IO uint16_t*)(LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(y * 240 + x))) = *(uint16_t *)pixel;
}
#ifdef RT_USING_FINSH
static void lcd_set_pixel(uint16_t color, int x, int y)
{
rt_kprintf("lcd set pixel, color: %X, x: %d, y: %d", color, x, y);
ili9341_lcd_set_pixel((const char *)&color, x, y);
}
FINSH_FUNCTION_EXPORT(lcd_set_pixel, set pixel in lcd display);
#endif
static void ili9341_lcd_get_pixel(char* pixel, int x, int y)
{
uint32_t ret = 0;
if(LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB8888)
{
/* Read data value from SDRAM memory */
ret = *(__IO uint32_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (4*(y * 240 + x)));
}
else if(LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB888)
{
/* Read data value from SDRAM memory */
ret = (*(__IO uint32_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (4*(y*240 + x))) & 0x00FFFFFF);
}
else if((LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565) || \
(LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \
(LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_AL88))
{
/* Read data value from SDRAM memory */
ret = *(__IO uint16_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(y*240 + x)));
}
else
{
/* Read data value from SDRAM memory */
ret = *(__IO uint8_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(y*240 + x)));
}
*pixel = ret;
}
#ifdef RT_USING_FINSH
static void lcd_get_pixel(int x, int y)
{
uint16_t pixel;
ili9341_lcd_get_pixel((char *)&pixel, x, y);
rt_kprintf("lcd get pixel, pixel: 0x%X, x: %d, y: %d", pixel, x, y);
}
FINSH_FUNCTION_EXPORT(lcd_get_pixel, get pixel in lcd display);
#endif
static void ili9341_lcd_draw_hline(const char* pixel, int x1, int x2, int y)
{
BSP_LCD_DrawLine(*pixel, x1, y, x2, y);
}
#ifdef RT_USING_FINSH
static void lcd_draw_hline(uint16_t pixel, int x1, int x2, int y)
{
ili9341_lcd_draw_hline((const char *)&pixel, x1, x2, y);
rt_kprintf("lcd draw hline, pixel: 0x%X, x1: %d, x2: %d, y: %d", pixel, x1, x2, y);
}
FINSH_FUNCTION_EXPORT(lcd_draw_hline, draw hline in lcd display);
#endif
static void ili9341_lcd_draw_vline(const char* pixel, int x, int y1, int y2)
{
BSP_LCD_DrawLine(*pixel, x, y1, x, y2);
}
#ifdef RT_USING_FINSH
static void lcd_draw_vline(uint16_t pixel, int x, int y1, int y2)
{
ili9341_lcd_draw_vline((const char *)&pixel, x, y1, y2);
rt_kprintf("lcd draw hline, pixel: 0x%X, x: %d, y: %d", pixel, y1, y2);
}
FINSH_FUNCTION_EXPORT(lcd_draw_vline, draw vline in lcd display);
#endif
static void ili9341_lcd_blit_line(const char* pixels, int x, int y, rt_size_t size)
{
int i = 0;
while(size--)
*(__IO uint16_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(y*240 + x + i++))) = *(uint16_t *)pixels++;
}
#ifdef RT_USING_FINSH
#define LINE_LEN 30
static void lcd_blit_line(int x, int y)
{
uint16_t pixels[LINE_LEN];
int i;
for (i = 0; i < LINE_LEN; i++)
{
pixels[i] = i * 40 + 50;
}
ili9341_lcd_blit_line((const char *)pixels, x, y, LINE_LEN);
rt_kprintf("lcd blit line, x: %d, y: %d", x, y);
}
FINSH_FUNCTION_EXPORT(lcd_blit_line, draw blit line in lcd display);
#endif
static int rt_hw_lcd_init(void)
{
_lcd_low_level_init();
static struct rt_device lcd_device;
static struct rt_device_graphic_ops ili9341_ops =
{
ili9341_lcd_set_pixel,
ili9341_lcd_get_pixel,
ili9341_lcd_draw_hline,
ili9341_lcd_draw_vline,
ili9341_lcd_blit_line
};
/* register lcd device */
lcd_device.type = RT_Device_Class_Graphic;
lcd_device.init = lcd_init;
lcd_device.open = lcd_open;
lcd_device.close = lcd_close;
lcd_device.control = lcd_control;
lcd_device.read = RT_NULL;
lcd_device.write = RT_NULL;
lcd_device.user_data = &ili9341_ops;
/* register graphic device driver */
rt_device_register(&lcd_device, "lcd",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);
return 0;
}
INIT_BOARD_EXPORT(rt_hw_lcd_init);