display control QVGA TFT MCB1700 KEIL
Diff: GLCD_MCB1700.c
- Revision:
- 1:0ae206eb6e55
- Parent:
- 0:b96b9110daf9
--- a/GLCD_MCB1700.c Wed Feb 29 10:11:54 2012 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,749 +0,0 @@ -#include "mbed.h" -/******************************************************************************/ -/* GLCD_SPI_LPC1700.c: LPC1700 low level Graphic LCD (240x320 pixels) driven */ -/* with SPI functions */ -/******************************************************************************/ -/* This file is part of the uVision/ARM development tools. */ -/* Copyright (c) 2005-2010 Keil Software. All rights reserved. */ -/* This software may only be used under the terms of a valid, current, */ -/* end user licence from KEIL for a compatible version of KEIL software */ -/* development tools. Nothing else gives you the right to use this software. */ -/******************************************************************************/ - - -#include "mbed.h" -#include "GLCD_MCB1700.h" -#include "font_6x8_h.h" -#include "font_16x24_h.h" - -/************************** Orientation configuration ************************/ - -#define HORIZONTAL 1 /* If vertical = 0, if horizontal = 1 */ - -/*********************** Hardware specific configuration **********************/ - -/* SPI Interface: SPI3 - - PINS: - - CS = P0.6 (GPIO pin) - - RS = GND - - WR/SCK = P0.7 (SCK1) - - RD = GND - - SDO = P0.8 (MISO1) - - SDI = P0.9 (MOSI1) */ - -#define PIN_CS (1 << 6) - -/* SPI_SR - bit definitions */ -#define TFE 0x01 -#define RNE 0x04 -#define BSY 0x10 - -/*------------------------- Speed dependant settings -------------------------*/ - -/* If processor works on high frequency delay has to be increased, it can be - increased by factor 2^N by this constant */ -#define DELAY_2N 18 - -/*---------------------- Graphic LCD size definitions ------------------------*/ - -#if (HORIZONTAL == 1) -#define WIDTH 320 /* Screen Width (in pixels) */ -#define HEIGHT 240 /* Screen Hight (in pixels) */ -#else -#define WIDTH 240 /* Screen Width (in pixels) */ -#define HEIGHT 320 /* Screen Hight (in pixels) */ -#endif -#define BPP 16 /* Bits per pixel */ -#define BYPP ((BPP+7)/8) /* Bytes per pixel */ - -/*--------------- Graphic LCD interface hardware definitions -----------------*/ - -/* Pin CS setting to 0 or 1 */ -#define LCD_CS(x) ((x) ? (LPC_GPIO0->FIOSET = PIN_CS) : (LPC_GPIO0->FIOCLR = PIN_CS)); - -#define SPI_START (0x70) /* Start byte for SPI transfer */ -#define SPI_RD (0x01) /* WR bit 1 within start */ -#define SPI_WR (0x00) /* WR bit 0 within start */ -#define SPI_DATA (0x02) /* RS bit 1 within start byte */ -#define SPI_INDEX (0x00) /* RS bit 0 within start byte */ - -/*---------------------------- Global variables ------------------------------*/ - -/******************************************************************************/ -static volatile unsigned short TextColor = Black, BackColor = White; - - -/************************ Local auxiliary functions ***************************/ - -/******************************************************************************* -* Delay in while loop cycles * -* Parameter: cnt: number of while cycles to delay * -* Return: * -*******************************************************************************/ - -static void delay (int cnt) { - - cnt <<= DELAY_2N; - while (cnt--); -} - - -/******************************************************************************* -* Send 1 byte over the serial communication * -* Parameter: byte: byte to be sent * -* Return: byte read while sending * -*******************************************************************************/ - -static __inline unsigned char spi_send (unsigned char byte) { - - LPC_SSP1->DR = byte; - while (!(LPC_SSP1->SR & RNE)); /* Wait for send to finish */ - return (LPC_SSP1->DR); -} - - -/******************************************************************************* -* Write a command the LCD controller * -* Parameter: cmd: command to be written * -* Return: * -*******************************************************************************/ - -static __inline void wr_cmd (unsigned char cmd) { - - LCD_CS(0) - spi_send(SPI_START | SPI_WR | SPI_INDEX); /* Write : RS = 0, RW = 0 */ - spi_send(0); - spi_send(cmd); - LCD_CS(1) -} - - -/******************************************************************************* -* Write data to the LCD controller * -* Parameter: dat: data to be written * -* Return: * -*******************************************************************************/ - -static __inline void wr_dat (unsigned short dat) { - - LCD_CS(0) - spi_send(SPI_START | SPI_WR | SPI_DATA); /* Write : RS = 1, RW = 0 */ - spi_send((dat >> 8)); /* Write D8..D15 */ - spi_send((dat & 0xFF)); /* Write D0..D7 */ - LCD_CS(1) -} - - -/******************************************************************************* -* Start of data writing to the LCD controller * -* Parameter: * -* Return: * -*******************************************************************************/ - -static __inline void wr_dat_start (void) { - - LCD_CS(0) - spi_send(SPI_START | SPI_WR | SPI_DATA); /* Write : RS = 1, RW = 0 */ -} - - -/******************************************************************************* -* Stop of data writing to the LCD controller * -* Parameter: * -* Return: * -*******************************************************************************/ - -static __inline void wr_dat_stop (void) { - - LCD_CS(1) -} - - -/******************************************************************************* -* Data writing to the LCD controller * -* Parameter: dat: data to be written * -* Return: * -*******************************************************************************/ - -static __inline void wr_dat_only (unsigned short dat) { - - spi_send((dat >> 8)); /* Write D8..D15 */ - spi_send((dat & 0xFF)); /* Write D0..D7 */ -} - - -/******************************************************************************* -* Read data from the LCD controller * -* Parameter: * -* Return: read data * -*******************************************************************************/ - -static __inline unsigned short rd_dat (void) { - unsigned short val = 0; - - LCD_CS(0) - spi_send(SPI_START | SPI_RD | SPI_DATA); /* Read: RS = 1, RW = 1 */ - spi_send(0); /* Dummy read 1 */ - val = spi_send(0); /* Read D8..D15 */ - val <<= 8; - val |= spi_send(0); /* Read D0..D7 */ - LCD_CS(1) - return (val); -} - - -/******************************************************************************* -* Write a value to the to LCD register * -* Parameter: reg: register to be written * -* val: value to write to the register * -*******************************************************************************/ - -static __inline void wr_reg (unsigned char reg, unsigned short val) { - - wr_cmd(reg); - wr_dat(val); -} - - -/******************************************************************************* -* Read from the LCD register * -* Parameter: reg: register to be read * -* Return: value read from the register * -*******************************************************************************/ - -static unsigned short rd_reg (unsigned char reg) { - - wr_cmd(reg); - return(rd_dat()); -} - - -/************************ Exported functions **********************************/ - -/******************************************************************************* -* Initialize the Graphic LCD controller * -* Parameter: * -* Return: * -*******************************************************************************/ - -void GLCD_Init (void) { - static unsigned short driverCode; - - /* Enable clock for SSP1, clock = CCLK / 2 */ - LPC_SC->PCONP |= 0x00000400; - LPC_SC->PCLKSEL0 |= 0x00200000; - - /* Configure the LCD Control pins */ - LPC_PINCON->PINSEL9 &= 0xF0FFFFFF; - LPC_GPIO4->FIODIR |= 0x30000000; - LPC_GPIO4->FIOSET = 0x20000000; - - /* SSEL1 is GPIO output set to high */ - LPC_GPIO0->FIODIR |= 0x00000040; - LPC_GPIO0->FIOSET = 0x00000040; - LPC_PINCON->PINSEL0 &= 0xFFF03FFF; - LPC_PINCON->PINSEL0 |= 0x000A8000; - - /* Enable SPI in Master Mode, CPOL=1, CPHA=1 */ - /* Max. 12.5 MBit used for Data Transfer @ 100MHz */ - LPC_SSP1->CR0 = 0x01C7; - LPC_SSP1->CPSR = 0x02; - LPC_SSP1->CR1 = 0x02; - - delay(5); /* Delay 50 ms */ - driverCode = rd_reg(0x00); - - /* Start Initial Sequence --------------------------------------------------*/ - wr_reg(0x01, 0x0100); /* Set SS bit */ - wr_reg(0x02, 0x0700); /* Set 1 line inversion */ - wr_reg(0x04, 0x0000); /* Resize register */ - wr_reg(0x08, 0x0207); /* 2 lines front, 7 back porch */ - wr_reg(0x09, 0x0000); /* Set non-disp area refresh cyc ISC */ - wr_reg(0x0A, 0x0000); /* FMARK function */ - wr_reg(0x0C, 0x0000); /* RGB interface setting */ - wr_reg(0x0D, 0x0000); /* Frame marker Position */ - wr_reg(0x0F, 0x0000); /* RGB interface polarity */ - - /* Power On sequence -------------------------------------------------------*/ - wr_reg(0x10, 0x0000); /* Reset Power Control 1 */ - wr_reg(0x11, 0x0000); /* Reset Power Control 2 */ - wr_reg(0x12, 0x0000); /* Reset Power Control 3 */ - wr_reg(0x13, 0x0000); /* Reset Power Control 4 */ - delay(20); /* Discharge cap power voltage (200ms)*/ - wr_reg(0x10, 0x12B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */ - wr_reg(0x11, 0x0007); /* DC1[2:0], DC0[2:0], VC[2:0] */ - delay(5); /* Delay 50 ms */ - wr_reg(0x12, 0x01BD); /* VREG1OUT voltage */ - delay(5); /* Delay 50 ms */ - wr_reg(0x13, 0x1400); /* VDV[4:0] for VCOM amplitude */ - wr_reg(0x29, 0x000E); /* VCM[4:0] for VCOMH */ - delay(5); /* Delay 50 ms */ - wr_reg(0x20, 0x0000); /* GRAM horizontal Address */ - wr_reg(0x21, 0x0000); /* GRAM Vertical Address */ - - /* Adjust the Gamma Curve --------------------------------------------------*/ - if (driverCode == 0x5408) { /* LCD with SPFD5408 LCD Controller */ - wr_reg(0x30, 0x0B0D); - wr_reg(0x31, 0x1923); - wr_reg(0x32, 0x1C26); - wr_reg(0x33, 0x261C); - wr_reg(0x34, 0x2419); - wr_reg(0x35, 0x0D0B); - wr_reg(0x36, 0x1006); - wr_reg(0x37, 0x0610); - wr_reg(0x38, 0x0706); - wr_reg(0x39, 0x0304); - wr_reg(0x3A, 0x0E05); - wr_reg(0x3B, 0x0E01); - wr_reg(0x3C, 0x010E); - wr_reg(0x3D, 0x050E); - wr_reg(0x3E, 0x0403); - wr_reg(0x3F, 0x0607); - } - else { /* LCD with other LCD Controller */ - wr_reg(0x30, 0x0006); - wr_reg(0x31, 0x0101); - wr_reg(0x32, 0x0003); - wr_reg(0x35, 0x0106); - wr_reg(0x36, 0x0B02); - wr_reg(0x37, 0x0302); - wr_reg(0x38, 0x0707); - wr_reg(0x39, 0x0007); - wr_reg(0x3C, 0x0600); - wr_reg(0x3D, 0x020B); - } - - /* Set GRAM area -----------------------------------------------------------*/ - wr_reg(0x50, 0x0000); /* Horizontal GRAM Start Address */ - wr_reg(0x51, (HEIGHT-1)); /* Horizontal GRAM End Address */ - wr_reg(0x52, 0x0000); /* Vertical GRAM Start Address */ - wr_reg(0x53, (WIDTH-1)); /* Vertical GRAM End Address */ - if (driverCode == 0x5408) /* LCD with SPFD5408 LCD Controller */ - wr_reg(0x60, 0xA700); /* Gate Scan Line */ - else /* LCD with other LCD Controller */ - wr_reg(0x60, 0x2700); /* Gate Scan Line */ - wr_reg(0x61, 0x0001); /* NDL,VLE, REV */ - wr_reg(0x6A, 0x0000); /* Set scrolling line */ - - /* Partial Display Control -------------------------------------------------*/ - wr_reg(0x80, 0x0000); - wr_reg(0x81, 0x0000); - wr_reg(0x82, 0x0000); - wr_reg(0x83, 0x0000); - wr_reg(0x84, 0x0000); - wr_reg(0x85, 0x0000); - - /* Panel Control -----------------------------------------------------------*/ - wr_reg(0x90, 0x0010); - wr_reg(0x92, 0x0000); - wr_reg(0x93, 0x0003); - wr_reg(0x95, 0x0110); - wr_reg(0x97, 0x0000); - wr_reg(0x98, 0x0000); - - /* Set GRAM write direction - I/D=11 (Horizontal : increment, Vertical : increment) */ - -#if (HORIZONTAL == 1) - /* AM=1 (address is updated in vertical writing direction) */ - wr_reg(0x03, 0x1038); -#else - /* AM=0 (address is updated in horizontal writing direction) */ - wr_reg(0x03, 0x1030); -#endif - - wr_reg(0x07, 0x0137); /* 262K color and display ON */ - LPC_GPIO4->FIOSET = 0x10000000; -} - - -/******************************************************************************* -* Set draw window region * -* Parameter: x: horizontal position * -* y: vertical position * -* w: window width in pixel * -* h: window height in pixels * -* Return: * -*******************************************************************************/ - -void GLCD_SetWindow (unsigned int x, unsigned int y, unsigned int w, unsigned int h) { - - wr_reg(0x50, x); /* Horizontal GRAM Start Address */ - wr_reg(0x51, x+w-1); /* Horizontal GRAM End Address (-1) */ - wr_reg(0x52, y); /* Vertical GRAM Start Address */ - wr_reg(0x53, y+h-1); /* Vertical GRAM End Address (-1) */ - - wr_reg(0x20, x); - wr_reg(0x21, y); -} - - -/******************************************************************************* -* Set draw window region to whole screen * -* Parameter: * -* Return: * -*******************************************************************************/ - -void GLCD_WindowMax (void) { - -#if (HORIZONTAL == 1) - GLCD_SetWindow (0, 0, HEIGHT, WIDTH); -#else - GLCD_SetWindow (0, 0, WIDTH, HEIGHT); -#endif -} - - -/******************************************************************************* -* Draw a pixel in foreground color * -* Parameter: x: horizontal position * -* y: vertical position * -* Return: * -*******************************************************************************/ - -void GLCD_PutPixel (unsigned int x, unsigned int y) { - -#if (HORIZONTAL == 1) - wr_reg(0x20, y); - wr_reg(0x21, WIDTH-1-x); -#else - wr_reg(0x20, x); - wr_reg(0x21, y); -#endif - wr_cmd(0x22); - wr_dat(TextColor); -} - - -/******************************************************************************* -* Set foreground color * -* Parameter: color: foreground color * -* Return: * -*******************************************************************************/ - -void GLCD_SetTextColor (unsigned short color) { - - TextColor = color; -} - - -/******************************************************************************* -* Set background color * -* Parameter: color: background color * -* Return: * -*******************************************************************************/ - -void GLCD_SetBackColor (unsigned short color) { - - BackColor = color; -} - - -/******************************************************************************* -* Clear display * -* Parameter: color: display clearing color * -* Return: * -*******************************************************************************/ - -void GLCD_Clear (unsigned short color) { - unsigned int i; - - GLCD_WindowMax(); - wr_cmd(0x22); - wr_dat_start(); - for(i = 0; i < (WIDTH*HEIGHT); i++) - wr_dat_only(color); - wr_dat_stop(); -} - - -/******************************************************************************* -* Draw character on given position * -* Parameter: x: horizontal position * -* y: vertical position * -* cw: character width in pixel * -* ch: character height in pixels * -* c: pointer to character bitmap * -* Return: * -*******************************************************************************/ - -void GLCD_DrawChar_U8 (unsigned int x, unsigned int y, unsigned int cw, unsigned int ch, unsigned char *c) { - int idx = 0, i, j; - -#if (HORIZONTAL == 1) - x = WIDTH-x-cw; - GLCD_SetWindow(y, x, ch, cw); -#else - GLCD_SetWindow(x, y, cw, ch); -#endif - wr_cmd(0x22); - wr_dat_start(); - for (j = 0; j < ch; j++) { -#if (HORIZONTAL == 1) - for (i = cw-1; i >= 0; i--) { -#else - for (i = 0; i <= cw-1; i++) { -#endif - if((c[idx] & (1 << i)) == 0x00) { - wr_dat_only(BackColor); - } else { - wr_dat_only(TextColor); - } - } - c++; - } - wr_dat_stop(); -} - - -/******************************************************************************* -* Draw character on given position * -* Parameter: x: horizontal position * -* y: vertical position * -* cw: character width in pixel * -* ch: character height in pixels * -* c: pointer to character bitmap * -* Return: * -*******************************************************************************/ - -void GLCD_DrawChar_U16 (unsigned int x, unsigned int y, unsigned int cw, unsigned int ch, unsigned short *c) { - int idx = 0, i, j; - -#if (HORIZONTAL == 1) - x = WIDTH-x-cw; - GLCD_SetWindow(y, x, ch, cw); -#else - GLCD_SetWindow(x, y, cw, ch); -#endif - wr_cmd(0x22); - wr_dat_start(); - for (j = 0; j < ch; j++) { -#if (HORIZONTAL == 1) - for (i = cw-1; i >= 0; i--) { -#else - for (i = 0; i <= cw-1; i++) { -#endif - if((c[idx] & (1 << i)) == 0x00) { - wr_dat_only(BackColor); - } else { - wr_dat_only(TextColor); - } - } - c++; - } - wr_dat_stop(); -} - - -/******************************************************************************* -* Disply character on given line * -* Parameter: ln: line number * -* col: column number * -* fi: font index (0 = 6x8, 1 = 16x24) * -* c: ascii character * -* Return: * -*******************************************************************************/ - -void GLCD_DisplayChar (unsigned int ln, unsigned int col, unsigned char fi, unsigned char c) { - - c -= 32; - switch (fi) { - case 0: /* Font 6 x 8 */ - GLCD_DrawChar_U8 (col * 6, ln * 8, 6, 8, (unsigned char *)&Font_6x8_h [c * 8]); - break; - case 1: /* Font 16 x 24 */ - GLCD_DrawChar_U16(col * 16, ln * 24, 16, 24, (unsigned short *)&Font_16x24_h[c * 24]); - break; - } -} - - -/******************************************************************************* -* Disply string on given line * -* Parameter: ln: line number * -* col: column number * -* fi: font index (0 = 6x8, 1 = 16x24) * -* s: pointer to string * -* Return: * -*******************************************************************************/ - -void GLCD_DisplayString (unsigned int ln, unsigned int col, unsigned char fi, unsigned char *s) { - - GLCD_WindowMax(); - while (*s) { - GLCD_DisplayChar(ln, col++, fi, *s++); - } -} - - -/******************************************************************************* -* Clear given line * -* Parameter: ln: line number * -* fi: font index (0 = 6x8, 1 = 16x24) * -* Return: * -*******************************************************************************/ - -void GLCD_ClearLn (unsigned int ln, unsigned char fi) { - unsigned char i; - unsigned char buf[60]; - - GLCD_WindowMax(); - switch (fi) { - case 0: /* Font 6 x 8 */ - for (i = 0; i < (WIDTH+5)/6; i++) - buf[i] = ' '; - buf[i+1] = 0; - break; - case 1: /* Font 16 x 24 */ - for (i = 0; i < (WIDTH+15)/16; i++) - buf[i] = ' '; - buf[i+1] = 0; - break; - } - GLCD_DisplayString (ln, 0, fi, buf); -} - -/******************************************************************************* -* Draw bargraph * -* Parameter: x: horizontal position * -* y: vertical position * -* w: maximum width of bargraph (in pixels) * -* val: value of active bargraph (in 1/1024) * -* Return: * -*******************************************************************************/ - -void GLCD_Bargraph (unsigned int x, unsigned int y, unsigned int w, unsigned int h, unsigned int val) { - int i,j; - - val = (val * w) >> 10; /* Scale value */ -#if (HORIZONTAL == 1) - x = WIDTH-x-w; - GLCD_SetWindow(y, x, h, w); -#else - GLCD_SetWindow(x, y, w, h); -#endif - wr_cmd(0x22); - wr_dat_start(); - for (i = 0; i < h; i++) { -#if (HORIZONTAL == 1) - for (j = w-1; j >= 0; j--) { -#else - for (j = 0; j <= w-1; j++) { -#endif - if(j >= val) { - wr_dat_only(BackColor); - } else { - wr_dat_only(TextColor); - } - } - } - wr_dat_stop(); -} - - -/******************************************************************************* -* Display graphical bitmap image at position x horizontally and y vertically * -* (This function is optimized for 16 bits per pixel format, it has to be * -* adapted for any other bits per pixel format) * -* Parameter: x: horizontal position * -* y: vertical position * -* w: width of bitmap * -* h: height of bitmap * -* bitmap: address at which the bitmap data resides * -* Return: * -*******************************************************************************/ - -void GLCD_Bitmap (unsigned int x, unsigned int y, unsigned int w, unsigned int h, unsigned char *bitmap) { - unsigned int i, j; - unsigned short *bitmap_ptr = (unsigned short *)bitmap; - -#if (HORIZONTAL == 1) - x = WIDTH-x-w; - GLCD_SetWindow(y, x, h, w); -#else - GLCD_SetWindow(x, y, w, h); -#endif - wr_cmd(0x22); - wr_dat_start(); - for (j = 0; j < h; j++) { -#if (HORIZONTAL == 1) - for (i = 0; i < w; i++) { - wr_dat_only(*bitmap_ptr++); - } -#else - bitmap_ptr += w-1; - for (i = 0; i < w; i++) { - wr_dat_only(*bitmap_ptr--); - } - bitmap_ptr += w+1; -#endif - } - wr_dat_stop(); -} - - -/******************************************************************************* -* Display graphical bmp file image at position x horizontally and y vertically * -* (This function is optimized for 16 bits per pixel format, it has to be * -* adapted for any other bits per pixel format) * -* Parameter: x: horizontal position * -* y: vertical position * -* w: width of bitmap * -* h: height of bitmap * -* bmp: address at which the bmp data resides * -* Return: * -*******************************************************************************/ - -void GLCD_Bmp (unsigned int x, unsigned int y, unsigned int w, unsigned int h, unsigned char *bmp) { - unsigned int i, j; - unsigned short *bitmap_ptr = (unsigned short *)bmp; - -#if (HORIZONTAL == 1) - x = WIDTH-x-w; - GLCD_SetWindow(y, x, h, w); -#else - GLCD_SetWindow(x, y, w, h); -#endif - wr_cmd(0x22); - wr_dat_start(); -#if (HORIZONTAL == 1) - bitmap_ptr += (h*w)-1; - for (j = 0; j < h; j++) { - for (i = 0; i < w; i++) { - wr_dat_only(*bitmap_ptr--); - } - } -#else - bitmap_ptr += ((h-1)*w); - for (j = 0; j < h; j++) { - for (i = 0; i < w; i++) { - wr_dat_only(*bitmap_ptr++); - } - bitmap_ptr -= 2*w; - } -#endif - wr_dat_stop(); -} - - -/******************************************************************************* -* Scroll content of the whole display for dy pixels vertically * -* Parameter: dy: number of pixels for vertical scroll * -* Return: * -*******************************************************************************/ - -void GLCD_ScrollVertical (unsigned int dy) { -#if (HORIZONTAL == 0) - static unsigned int y = 0; - - y = y + dy; - while (y >= HEIGHT) - y -= HEIGHT; - - wr_reg(0x6A, y); - wr_reg(0x61, 3); -#endif -} - -/******************************************************************************/