Demo for the FTDI FT800 "EVE" lib. 3 sliders are used to control the RGB color
Fork of FT800_touch_track by
The program draws three sliders and a color field. You can change the color of the field with the sliders on the touch screen.
main.cpp@1:a7076a14694b, 2014-09-20 (annotated)
- Committer:
- dreschpe
- Date:
- Sat Sep 20 12:03:54 2014 +0000
- Revision:
- 1:a7076a14694b
- Parent:
- 0:3edc602de5a7
Demo program for the use of the FTDI FT800 "EVE" graphic controller. Use the new FT800_2 lib.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dreschpe | 0:3edc602de5a7 | 1 | /* Demo for mbed Library for FTDI FT800 Enbedded Video Engine "EVE" |
dreschpe | 0:3edc602de5a7 | 2 | * based on Original Code Sample from FTDI |
dreschpe | 0:3edc602de5a7 | 3 | * ported to mbed by Peter Drescher, DC2PD 2014 |
dreschpe | 0:3edc602de5a7 | 4 | * Released under the MIT License: http://mbed.org/license/mit */ |
dreschpe | 0:3edc602de5a7 | 5 | |
dreschpe | 0:3edc602de5a7 | 6 | #include "mbed.h" |
dreschpe | 0:3edc602de5a7 | 7 | #include "FT_Platform.h" |
dreschpe | 0:3edc602de5a7 | 8 | |
dreschpe | 1:a7076a14694b | 9 | FT800 TFT(PA_7,PA_6,PA_5,PC_7,PB_4,PA_9); // mosi, miso, sck, ss, int, pd // the FT800 is connected to SPI 11-13 |
dreschpe | 0:3edc602de5a7 | 10 | |
dreschpe | 0:3edc602de5a7 | 11 | /***************************************************************************/ |
dreschpe | 0:3edc602de5a7 | 12 | /* Show a Screen with Text for 5 seconds */ |
dreschpe | 0:3edc602de5a7 | 13 | /* A spinner shows the delay */ |
dreschpe | 0:3edc602de5a7 | 14 | /***************************************************************************/ |
dreschpe | 0:3edc602de5a7 | 15 | |
dreschpe | 1:a7076a14694b | 16 | ft_void_t Start_Screen(ft_char8_t *str) |
dreschpe | 0:3edc602de5a7 | 17 | { |
dreschpe | 1:a7076a14694b | 18 | TFT.DLstart(); // start a new display command list |
dreschpe | 1:a7076a14694b | 19 | TFT.DL(CLEAR_COLOR_RGB(255,255,255)); // set the clear color to white |
dreschpe | 1:a7076a14694b | 20 | TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer |
dreschpe | 1:a7076a14694b | 21 | TFT.DL(COLOR_RGB(0x80,0x80,0x00)); // set current color |
dreschpe | 1:a7076a14694b | 22 | TFT.Text((TFT.DispWidth/2), TFT.DispHeight/2, 31, OPT_CENTERX, str); // draw Text with font 31 |
dreschpe | 1:a7076a14694b | 23 | TFT.DL(COLOR_RGB(0xFF,0x00,0x00)); // change current color |
dreschpe | 1:a7076a14694b | 24 | TFT.Spinner((TFT.DispWidth/2),TFT.DispHeight/4, 0,0); // draw a animated spinner |
dreschpe | 1:a7076a14694b | 25 | |
dreschpe | 1:a7076a14694b | 26 | TFT.DL(DISPLAY()); // Display the image |
dreschpe | 1:a7076a14694b | 27 | TFT.Swap(); // Swap the current display list |
dreschpe | 1:a7076a14694b | 28 | TFT.Flush_Co_Buffer(); // Download the command list into fifo |
dreschpe | 1:a7076a14694b | 29 | |
dreschpe | 1:a7076a14694b | 30 | TFT.WaitCmdfifo_empty(); // Wait till coprocessor completes the operation |
dreschpe | 1:a7076a14694b | 31 | TFT.Sleep(5000); // Wait 5 s to show |
dreschpe | 1:a7076a14694b | 32 | } |
dreschpe | 0:3edc602de5a7 | 33 | |
dreschpe | 1:a7076a14694b | 34 | // construct the screen and downloasd it to the LCD |
dreschpe | 1:a7076a14694b | 35 | void screen_1(unsigned int r,unsigned int g,unsigned int b) |
dreschpe | 1:a7076a14694b | 36 | { |
dreschpe | 1:a7076a14694b | 37 | TFT.DLstart(); // start a new display command list |
dreschpe | 1:a7076a14694b | 38 | TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer |
dreschpe | 1:a7076a14694b | 39 | TFT.DL(COLOR_RGB(0xff,0xff,0xff)); // set current color to white |
dreschpe | 1:a7076a14694b | 40 | TFT.DL(TAG(1)); // assign TAG value 1 |
dreschpe | 1:a7076a14694b | 41 | TFT.FgColor(COLOR_RGB(0xff,0,0)); // forground color red |
dreschpe | 1:a7076a14694b | 42 | TFT.Slider(140,81,310,14,0,r,255); // slider for red |
dreschpe | 1:a7076a14694b | 43 | TFT.DL(TAG(2)); // assign TAG value 2 |
dreschpe | 1:a7076a14694b | 44 | TFT.FgColor(COLOR_RGB(0,0xff,0)); // forground color green |
dreschpe | 1:a7076a14694b | 45 | TFT.Slider(140,133,310,14,0,g,255); // slider for green |
dreschpe | 1:a7076a14694b | 46 | TFT.DL(TAG(3)); // assign TAG value 3 |
dreschpe | 1:a7076a14694b | 47 | TFT.FgColor(COLOR_RGB(0,0,0xff)); // forground color blue |
dreschpe | 1:a7076a14694b | 48 | TFT.Slider(139,185,310,14,0,b,255); // slider for blue |
dreschpe | 1:a7076a14694b | 49 | TFT.DL(COLOR_RGB(0xff,0x00,0x00)); // set current color to red |
dreschpe | 1:a7076a14694b | 50 | TFT.Text(82,69,30,0,"R"); // text R |
dreschpe | 1:a7076a14694b | 51 | TFT.DL(COLOR_RGB(0x00,0xff,0x00)); // set current color to green |
dreschpe | 1:a7076a14694b | 52 | TFT.Text(82,120,30,0,"G"); // text G |
dreschpe | 1:a7076a14694b | 53 | TFT.DL(COLOR_RGB(0x00,0x00,0xff)); // set current color to blue |
dreschpe | 1:a7076a14694b | 54 | TFT.Text(82,174,30,0,"B"); // text B |
dreschpe | 1:a7076a14694b | 55 | TFT.DL(SCISSOR_XY(10,10)); // define area starting at 10,10 |
dreschpe | 1:a7076a14694b | 56 | TFT.DL(SCISSOR_SIZE(50,50)); // size 50,50 |
dreschpe | 1:a7076a14694b | 57 | TFT.DL(CLEAR_COLOR_RGB(r,g,b)); // set clear color to r,g,b |
dreschpe | 1:a7076a14694b | 58 | TFT.DL(CLEAR(1,1,1)); // fill the area |
dreschpe | 1:a7076a14694b | 59 | TFT.DL(DISPLAY()); // Display the image |
dreschpe | 1:a7076a14694b | 60 | TFT.Swap(); // Swap the current display list |
dreschpe | 1:a7076a14694b | 61 | TFT.Flush_Co_Buffer(); // Download the command list into fifo |
dreschpe | 1:a7076a14694b | 62 | TFT.WaitCmdfifo_empty(); // Wait till coprocessor completes the operation |
dreschpe | 1:a7076a14694b | 63 | } |
dreschpe | 0:3edc602de5a7 | 64 | |
dreschpe | 1:a7076a14694b | 65 | int main() |
dreschpe | 1:a7076a14694b | 66 | { |
dreschpe | 1:a7076a14694b | 67 | unsigned int r = 0,g = 0,b = 0; |
dreschpe | 1:a7076a14694b | 68 | ft_uint32_t TrackRegisterVal = 0; // touch track |
dreschpe | 1:a7076a14694b | 69 | |
dreschpe | 1:a7076a14694b | 70 | Start_Screen("RGB DEMO START"); // Show start screen |
dreschpe | 1:a7076a14694b | 71 | TFT.Calibrate(); // calibrate the touch screen |
dreschpe | 1:a7076a14694b | 72 | |
dreschpe | 1:a7076a14694b | 73 | /* Set the tracker for the 3 sliders - define the Area for touching */ |
dreschpe | 1:a7076a14694b | 74 | TFT.Track(131,63,330,48,1); // slider r |
dreschpe | 1:a7076a14694b | 75 | TFT.Track(131,116,333,48,2); // slider g |
dreschpe | 1:a7076a14694b | 76 | TFT.Track(131,168,330,48,3); // slider b |
dreschpe | 1:a7076a14694b | 77 | TFT.Flush_Co_Buffer(); // Download the commands into fifo |
dreschpe | 1:a7076a14694b | 78 | TFT.WaitCmdfifo_empty(); // Wait till coprocessor completes the operation |
dreschpe | 1:a7076a14694b | 79 | screen_1(r,g,b); // paint screen |
dreschpe | 0:3edc602de5a7 | 80 | |
dreschpe | 1:a7076a14694b | 81 | /* the demo is updating the screen in a endless loop */ |
dreschpe | 1:a7076a14694b | 82 | while(1) { |
dreschpe | 1:a7076a14694b | 83 | ft_uint8_t tagval = 0; |
dreschpe | 1:a7076a14694b | 84 | TrackRegisterVal = TFT.Rd32(REG_TRACKER); // check if one of the tree Slider is touched |
dreschpe | 1:a7076a14694b | 85 | tagval = TrackRegisterVal & 0xff; |
dreschpe | 1:a7076a14694b | 86 | if(0 != tagval) { // touch -> get new rgb value |
dreschpe | 1:a7076a14694b | 87 | if(1 == tagval) { // the red slider is touched |
dreschpe | 1:a7076a14694b | 88 | r = TrackRegisterVal>>16; // get the new value |
dreschpe | 1:a7076a14694b | 89 | r = r *255/65536; // scale it down to 255 |
dreschpe | 1:a7076a14694b | 90 | } else if(2 == tagval) { // the green slider is touched |
dreschpe | 1:a7076a14694b | 91 | g = TrackRegisterVal>>16; // get new slider value |
dreschpe | 1:a7076a14694b | 92 | g = g * 255/65536; // scale it down to 255 |
dreschpe | 1:a7076a14694b | 93 | } else if(3 == tagval) { // the blue slider is touched |
dreschpe | 1:a7076a14694b | 94 | b = TrackRegisterVal>>16; // get new slider value |
dreschpe | 1:a7076a14694b | 95 | b = b * 255/65536; // scale it down to 255 |
dreschpe | 1:a7076a14694b | 96 | } |
dreschpe | 1:a7076a14694b | 97 | screen_1(r,g,b); // paint new screen |
dreschpe | 1:a7076a14694b | 98 | TFT.Sleep(10); // wait 10ms for next check |
dreschpe | 1:a7076a14694b | 99 | } |
dreschpe | 1:a7076a14694b | 100 | |
dreschpe | 1:a7076a14694b | 101 | } // end of display loop |
dreschpe | 0:3edc602de5a7 | 102 | } |
dreschpe | 0:3edc602de5a7 | 103 | |
dreschpe | 0:3edc602de5a7 | 104 | |
dreschpe | 0:3edc602de5a7 | 105 |