Revision 0:e2e3599e7dba, committed 2021-09-10

Comitter:

YROY2004

Date:

Fri Sep 10 10:49:37 2021 +0000

Commit message:

Draws colored rectangles on a low cost TFT touchscreen that connects to Arduino compatible headers.

Changed in this revision

diff -r 000000000000 -r e2e3599e7dba main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Sep 10 10:49:37 2021 +0000
@@ -0,0 +1,202 @@
+#include "mbed.h"
+
+#define TFTWIDTH  240
+#define TFTHEIGHT 320
+
+#define TFT_NORTH {SPFD5408_MADCTL_MY | SPFD5408_MADCTL_BGR}
+#define TFT_EAST  {SPFD5408_MADCTL_MX | SPFD5408_MADCTL_MY | SPFD5408_MADCTL_MV | SPFD5408_MADCTL_BGR}
+#define TFT_SOUTH {SPFD5408_MADCTL_MX | SPFD5408_MADCTL_BGR}
+#define TFT_WEST  {SPFD5408_MADCTL_MV | SPFD5408_MADCTL_BGR}
+
+#define BLACK   0x0000
+#define BLUE    0x001F
+#define RED     0xF800
+#define GREEN   0x07E0
+#define CYAN    0x07FF
+#define MAGENTA 0xF81F
+#define YELLOW  0xFFE0
+#define WHITE   0xFFFF
+
+#define SPFD5408_SOFTRESET          0x01
+#define SPFD5408_SLEEPIN            0x10
+#define SPFD5408_SLEEPOUT           0x11
+#define SPFD5408_NORMALDISP         0x13
+#define SPFD5408_INVERTOFF          0x20
+#define SPFD5408_INVERTON           0x21
+#define SPFD5408_GAMMASET           0x26
+#define SPFD5408_DISPLAYOFF         0x28
+#define SPFD5408_DISPLAYON          0x29
+#define SPFD5408_COLADDRSET         0x2A
+#define SPFD5408_PAGEADDRSET        0x2B
+#define SPFD5408_MEMORYWRITE        0x2C
+#define SPFD5408_PIXELFORMAT        0x3A
+#define SPFD5408_FRAMECONTROL       0xB1
+#define SPFD5408_DISPLAYFUNC        0xB6
+#define SPFD5408_ENTRYMODE          0xB7
+#define SPFD5408_POWERCONTROL1      0xC0
+#define SPFD5408_POWERCONTROL2      0xC1
+#define SPFD5408_VCOMCONTROL1       0xC5
+#define SPFD5408_VCOMCONTROL2       0xC7
+#define SPFD5408_MEMCONTROL         0x36
+#define SPFD5408_MADCTL             0x36
+#define SPFD5408_MADCTL_MY          0x80
+#define SPFD5408_MADCTL_MX          0x40
+#define SPFD5408_MADCTL_MV          0x20
+#define SPFD5408_MADCTL_ML          0x10
+#define SPFD5408_MADCTL_RGB         0x00
+#define SPFD5408_MADCTL_BGR         0x08
+#define SPFD5408_MADCTL_MH          0x04
+
+#define IDLE    1
+#define ACTIVE  0
+#define COMMAND 0
+#define DATA    1
+
+#define TEMPS   40
+
+#define LCD_CS A3
+#define LCD_CD A2
+#define LCD_WR A1
+#define LCD_RD A0
+#define LCD_RESET A4
+
+DigitalOut pinRD(LCD_RD);   //PA_0;
+DigitalOut pinWR(LCD_WR);   //PA_1;
+DigitalOut pinCD(LCD_CD);   //PA_4;
+DigitalOut pinCS(LCD_CS);   //PB_0;
+DigitalOut pinReset(LCD_RESET);//PC_1;
+
+
+BusInOut portTFT(D8, D9, D2, D3, D4, D5, D6, D7);
+
+void WriteCommand(uint8_t c)
+{
+    pinCD = COMMAND;
+    pinWR = ACTIVE;
+    portTFT = c;
+    pinWR = IDLE;
+}
+
+void WriteData(uint8_t d)
+{
+    pinCD = DATA;
+    wait_ms(1);
+     wait_ms(1);
+    pinWR = ACTIVE;
+     wait_ms(1);   
+    portTFT = d;
+    wait_ms(1);    
+    pinWR = IDLE;
+    wait_ms(1);     
+}
+
+Serial pc(SERIAL_TX, SERIAL_RX);
+
+DigitalOut myled(LED1);
+
+
+
+void begin(void) {
+
+    pinCS = IDLE; 
+    pinCD = DATA;
+    pinWR = IDLE;
+    pinRD = IDLE;
+    portTFT.output();    
+
+    pinReset = ACTIVE;
+    wait_ms(100);
+    pinReset = IDLE;
+    wait_ms(100);
+    pinCS = ACTIVE;
+    
+    WriteCommand(SPFD5408_SOFTRESET);
+    WriteData(0);
+    wait_ms(50);
+    
+    WriteCommand(SPFD5408_MEMCONTROL);
+    WriteData(SPFD5408_MADCTL_MY | SPFD5408_MADCTL_BGR);
+    
+    WriteCommand(SPFD5408_PIXELFORMAT);
+    WriteData(0x55);
+  
+    WriteCommand(SPFD5408_FRAMECONTROL);
+    WriteData(0x00);
+    WriteData(0x1B);
+  
+    WriteCommand(SPFD5408_SLEEPOUT);
+    WriteData(0);
+  
+    WriteCommand(SPFD5408_DISPLAYON);
+    WriteData(0);
+}
+
+void setAddrWindow(int x1, int y1, int x2, int y2) {
+    pinCS = ACTIVE;
+    wait_us(TEMPS);
+    WriteCommand(SPFD5408_COLADDRSET);
+    WriteData(x1 >> 8);
+    WriteData(x1);
+    WriteData(x2 >> 8);
+    WriteData(x2);
+    wait_us(TEMPS);
+    pinCS = IDLE;
+
+    pinCS = ACTIVE;
+    wait_us(TEMPS);
+    WriteCommand(SPFD5408_PAGEADDRSET);
+    WriteData(y1 >> 8);
+    WriteData(y1);
+    WriteData(y2 >> 8);
+    WriteData(y2);
+    wait_us(TEMPS);
+    pinCS = IDLE;
+}
+
+
+void fillRect(uint16_t x1, uint16_t y1, uint16_t w, uint16_t h, uint16_t fillcolor) {
+    uint8_t hi, lo;
+    uint16_t  x2, y2;
+    uint16_t i, j;
+
+    x2 = x1 + w - 1;
+    y2 = y1 + h - 1;
+    setAddrWindow(x1, y1, x2, y2);
+
+    hi = fillcolor >> 8;
+    lo = fillcolor;
+
+    pinCS = ACTIVE;
+
+    WriteCommand(SPFD5408_MEMORYWRITE);
+    pinCD = DATA;
+    for (i = h; i > 0; i--)
+    {
+        for (j = w; j > 0; j--)
+
+        {
+            pinWR = ACTIVE;
+            portTFT = hi;
+            pinWR = IDLE; 
+            pinWR = ACTIVE;
+            portTFT = lo;
+            pinWR = IDLE;             
+        }
+    }
+    pinCS = IDLE;
+}
+
+
+int main()
+{
+    begin();
+    fillRect(0, 0, 240, 320, BLACK);
+    fillRect(75, 100, 100, 150, RED);
+    fillRect(80, 105, 90, 140, YELLOW);
+   
+    while(1)
+    {
+    }
+}
+
+

diff -r 000000000000 -r e2e3599e7dba mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Sep 10 10:49:37 2021 +0000
@@ -0,0 +1,1 @@
+https://mbed.org/users/mbed_official/code/mbed/builds/fd96258d940d
\ No newline at end of file