TMNTmaker !
ILI9341_SPI
Dependents: ov7670_dma_nucleo_f4 NUCLEO-F446RE_testDCMI
Diff: ILI9341.cpp
- Revision:
- 0:2d4605aef62f
- Child:
- 1:2446b5e1a4fb
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ILI9341.cpp Fri Apr 29 13:36:39 2016 +0000
@@ -0,0 +1,338 @@
+
+#include <mbed.h>
+#include "ILI9341.h"
+
+ili9341_spi::ili9341_spi(SPI& _spi, PinName _cs,PinName _dc,PinName _rs) : spi(_spi), cs(_cs),dc(_dc),rs(_rs) {}
+
+
+void ili9341_spi::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h)
+{
+ wr_cmd(0x2A);
+ spi.write(x >> 8);
+ spi.write(x);
+ spi.write((x+w-1) >> 8);
+ spi.write(x+w-1);
+
+ cs = 1;
+ wr_cmd(0x2B);
+ spi.write(y >> 8);
+ spi.write(y);
+ spi.write((y+h-1) >> 8);
+ spi.write(y+h-1);
+ cs = 1;
+}
+void ili9341_spi::wr_cmd(unsigned char cmd)
+{
+ dc = 0;
+ cs = 0;
+ spi.write(cmd); // mbed lib
+ dc = 1;
+}
+void ili9341_spi::wr_dat(unsigned char dat)
+{
+ spi.write(dat); // mbed lib
+}
+char ili9341_spi::rd_byte(unsigned char cmd)
+{
+ char r;
+ dc = 0;
+ cs = 0;
+ spi.write(cmd); // mbed lib
+ cs = 1;
+ r = spi.write(0xff);
+ cs = 1;
+ return(r);
+}
+int ili9341_spi::rd_32(unsigned char cmd)
+{
+ int d;
+ char r;
+ dc = 0;
+ cs = 0;
+ d = cmd;
+ d = d << 1;
+ spi.format(9,3); // we have to add a dummy clock cycle
+ spi.write(d);
+ spi.format(8,3);
+ dc = 1;
+ r = spi.write(0xff);
+ d = r;
+ r = spi.write(0xff);
+ d = (d << 8) | r;
+ r = spi.write(0xff);
+ d = (d << 8) | r;
+ r = spi.write(0xff);
+ d = (d << 8) | r;
+ cs = 1;
+ return(d);
+}
+int ili9341_spi:: Read_ID(void){
+ int r;
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ return(r);
+}
+
+void ili9341_spi::tft_reset()
+{
+ cs = 1; // cs high
+ dc = 1; // dc high
+ rs = 0; // display reset
+
+ wait_us(50);
+ rs = 1; // end hardware reset
+ wait_ms(5);
+
+ wr_cmd(0x01); // SW reset
+ wait_ms(5);
+ wr_cmd(0x28); // display off
+
+ /* Start Initial Sequence ----------------------------------------------------*/
+ wr_cmd(0xCF);
+ spi.write(0x00);
+ spi.write(0x83);
+ spi.write(0x30);
+ cs = 1;
+
+ wr_cmd(0xED);
+ spi.write(0x64);
+ spi.write(0x03);
+ spi.write(0x12);
+ spi.write(0x81);
+ cs = 1;
+
+ wr_cmd(0xE8);
+ spi.write(0x85);
+ spi.write(0x01);
+ spi.write(0x79);
+ cs = 1;
+
+ wr_cmd(0xCB);
+ spi.write(0x39);
+ spi.write(0x2C);
+ spi.write(0x00);
+ spi.write(0x34);
+ spi.write(0x02);
+ cs = 1;
+
+ wr_cmd(0xF7);
+ spi.write(0x20);
+ cs = 1;
+
+ wr_cmd(0xEA);
+ spi.write(0x00);
+ spi.write(0x00);
+ cs = 1;
+
+ wr_cmd(0xC0); // POWER_CONTROL_1
+ spi.write(0x26);
+ cs = 1;
+
+ wr_cmd(0xC1); // POWER_CONTROL_2
+ spi.write(0x11);
+ cs = 1;
+
+ wr_cmd(0xC5); // VCOM_CONTROL_1
+ spi.write(0x35);
+ spi.write(0x3E);
+ cs = 1;
+
+ wr_cmd(0xC7); // VCOM_CONTROL_2
+ spi.write(0xBE);
+ cs = 1;
+
+ wr_cmd(0x36); // MEMORY_ACCESS_CONTROL
+ spi.write(0x48);
+ cs = 1;
+
+ wr_cmd(0x3A); // COLMOD_PIXEL_FORMAT_SET
+ spi.write(0x55); // 16 bit pixel
+ cs = 1;
+
+ wr_cmd(0xB1); // Frame Rate
+ spi.write(0x00);
+ spi.write(0x1B);
+ cs = 1;
+
+ wr_cmd(0xF2); // Gamma Function Disable
+ spi.write(0x08);
+ cs = 1;
+
+ wr_cmd(0x26);
+ spi.write(0x01); // gamma set for curve 01/2/04/08
+ cs = 1;
+
+ wr_cmd(0xE0); // positive gamma correction
+ spi.write(0x1F);
+ spi.write(0x1A);
+ spi.write(0x18);
+ spi.write(0x0A);
+ spi.write(0x0F);
+ spi.write(0x06);
+ spi.write(0x45);
+ spi.write(0x87);
+ spi.write(0x32);
+ spi.write(0x0A);
+ spi.write(0x07);
+ spi.write(0x02);
+ spi.write(0x07);
+ spi.write(0x05);
+ spi.write(0x00);
+ cs = 1;
+
+ wr_cmd(0xE1); // negativ gamma correction
+ spi.write(0x00);
+ spi.write(0x25);
+ spi.write(0x27);
+ spi.write(0x05);
+ spi.write(0x10);
+ spi.write(0x09);
+ spi.write(0x3A);
+ spi.write(0x78);
+ spi.write(0x4D);
+ spi.write(0x05);
+ spi.write(0x18);
+ spi.write(0x0D);
+ spi.write(0x38);
+ spi.write(0x3A);
+ spi.write(0x1F);
+ cs = 1;
+
+ wr_cmd(0x2A);
+ spi.write(0);
+ spi.write(0);
+ spi.write(0);
+ spi.write(0x95);
+
+ cs = 1;
+ wr_cmd(0x2B);
+ spi.write(0);
+ spi.write(0);
+ spi.write(0x00);
+ spi.write(0x90);
+ cs = 1;
+
+ //wr_cmd(0x34); // tearing effect off
+ //_cs = 1;
+
+ //wr_cmd(0x35); // tearing effect on
+ //_cs = 1;
+
+ wr_cmd(0xB7); // entry mode
+ spi.write(0x07);
+ cs = 1;
+
+ wr_cmd(0xB6); // display function control
+ spi.write(0x0A);
+ spi.write(0x82);
+ spi.write(0x27);
+ spi.write(0x00);
+ cs = 1;
+
+ wr_cmd(0x11); // sleep out
+ cs = 1;
+
+ wait_ms(100);
+
+ wr_cmd(0x29); // display on
+ cs = 1;
+
+ wait_ms(100);
+
+ }
+void ili9341_spi::pixel(int x, int y, int color)
+{
+ wr_cmd(0x2A);
+ spi.write(x >> 8);
+ spi.write(x);
+ cs = 1;
+ wr_cmd(0x2B);
+ spi.write(y >> 8);
+ spi.write(y);
+ cs = 1;
+ wr_cmd(0x2C); // send pixel
+ //#if defined TARGET_KL25Z // 8 Bit SPI
+ spi.write(color >> 8);
+ spi.write(color & 0xff);
+ /*#else
+ SPI::format(16,3); // switch to 16 bit Mode 3
+ SPI::write(color); // Write D0..D15
+ SPI::format(8,3);
+ #endif*/
+ cs = 1;
+}
+void ili9341_spi::vline(int x, int y0, int y1, int color)
+{
+ int h;
+ h = y1 - y0 + 1;
+ window(x,y0,1,h);
+ wr_cmd(0x2C); // send pixel
+ //#if defined TARGET_KL25Z // 8 Bit SPI
+ for (int y=0; y<h; y++) {
+ spi.write(color >> 8);
+ spi.write(color & 0xff);
+ }
+ /* #else
+ SPI::format(16,3); // switch to 16 bit Mode 3
+ for (int y=0; y<h; y++) {
+ SPI::write(color);
+ }
+ SPI::format(8,3);*/
+ //#endif
+ cs = 1;
+ //WindowMax();
+ return;
+}
+
+void ili9341_spi::circle(int x0, int y0, int r, int color)
+{
+
+ int x = -r, y = 0, err = 2-2*r, e2;
+ do {
+ pixel(x0-x, y0+y,color);
+ pixel(x0+x, y0+y,color);
+ pixel(x0+x, y0-y,color);
+ pixel(x0-x, y0-y,color);
+ e2 = err;
+ if (e2 <= y) {
+ err += ++y*2+1;
+ if (-x == y && e2 <= x) e2 = 0;
+ }
+ if (e2 > x) err += ++x*2+1;
+ } while (x <= 0);
+ }
+
+void ili9341_spi::fillrect(int x0, int y0, int x1, int y1, int color)
+{
+
+ int h = y1 - y0 + 1;
+ int w = x1 - x0 + 1;
+ int pixel = h * w;
+ //window(x0,y0,w,h);
+ wr_cmd(0x2C); // send pixel
+ //#if defined TARGET_KL25Z // 8 Bit SPI
+ for (int p=0; p<pixel; p++) {
+ spi.write(color >> 8);
+ spi.write(color & 0xff);
+ }
+ /*#else
+ SPI::format(16,3); // switch to 16 bit Mode 3
+ for (int p=0; p<pixel; p++) {
+ SPI::write(color);
+ }
+ SPI::format(8,3);
+ #endif*/
+ cs = 1;
+ //WindowMax();
+ return;
+}
+void ili9341_spi::select() {
+ //Set CS low to start transmission (interrupts conversion)
+ cs = 0;
+}
+void ili9341_spi::deselect() {
+ //Set CS high to stop transmission (restarts conversion)
+ cs = 1;
+}
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