ST / Mbed 2 deprecated DISCO-F469NI_LCDTS_demo

Basic demo showing how to use the touch screen present on the DISCO_F469NI board.

Dependencies:   BSP_DISCO_F469NI LCD_DISCO_F469NI TS_DISCO_F469NI mbed

main.cpp@3:98e2c23d57b2, 2017-07-05 (annotated)

Committer:
jeromecoutant
Date:
Wed Jul 05 06:50:17 2017 +0000
Revision:
3:98e2c23d57b2
Parent:
0:0e730157c767 
Update with MBED rev145

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bcostm 0:0e730157c767 1 #include "mbed.h"
bcostm 0:0e730157c767 2 #include "TS_DISCO_F469NI.h"
bcostm 0:0e730157c767 3 #include "LCD_DISCO_F469NI.h"
bcostm 0:0e730157c767 4
bcostm 0:0e730157c767 5 LCD_DISCO_F469NI lcd;
bcostm 0:0e730157c767 6 TS_DISCO_F469NI ts;
bcostm 0:0e730157c767 7
bcostm 0:0e730157c767 8 int main()
bcostm 0:0e730157c767 9 {
bcostm 0:0e730157c767 10 TS_StateTypeDef TS_State;
bcostm 0:0e730157c767 11 uint16_t x, y;
bcostm 0:0e730157c767 12 uint8_t text[30];
bcostm 0:0e730157c767 13 uint8_t status;
bcostm 0:0e730157c767 14 uint8_t idx;
bcostm 0:0e730157c767 15 uint8_t cleared = 0;
bcostm 0:0e730157c767 16 uint8_t prev_nb_touches = 0;
bcostm 0:0e730157c767 17
bcostm 0:0e730157c767 18 BSP_LCD_SetFont(&Font24);
bcostm 0:0e730157c767 19
bcostm 0:0e730157c767 20 lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN DEMO", CENTER_MODE);
bcostm 0:0e730157c767 21 wait(1);
bcostm 0:0e730157c767 22
bcostm 0:0e730157c767 23 status = ts.Init(lcd.GetXSize(), lcd.GetYSize());
bcostm 0:0e730157c767 24 if (status != TS_OK)
bcostm 0:0e730157c767 25 {
bcostm 0:0e730157c767 26 lcd.Clear(LCD_COLOR_RED);
bcostm 0:0e730157c767 27 lcd.SetBackColor(LCD_COLOR_RED);
bcostm 0:0e730157c767 28 lcd.SetTextColor(LCD_COLOR_WHITE);
bcostm 0:0e730157c767 29 lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN INIT FAIL", CENTER_MODE);
bcostm 0:0e730157c767 30 }
bcostm 0:0e730157c767 31 else
bcostm 0:0e730157c767 32 {
bcostm 0:0e730157c767 33 lcd.Clear(LCD_COLOR_GREEN);
bcostm 0:0e730157c767 34 lcd.SetBackColor(LCD_COLOR_GREEN);
bcostm 0:0e730157c767 35 lcd.SetTextColor(LCD_COLOR_WHITE);
bcostm 0:0e730157c767 36 lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN INIT OK", CENTER_MODE);
bcostm 0:0e730157c767 37 }
bcostm 0:0e730157c767 38
bcostm 0:0e730157c767 39 wait(1);
bcostm 0:0e730157c767 40 lcd.SetBackColor(LCD_COLOR_BLUE);
bcostm 0:0e730157c767 41 lcd.SetTextColor(LCD_COLOR_WHITE);
bcostm 0:0e730157c767 42
bcostm 0:0e730157c767 43 while(1)
bcostm 0:0e730157c767 44 {
bcostm 0:0e730157c767 45
bcostm 0:0e730157c767 46 ts.GetState(&TS_State);
bcostm 0:0e730157c767 47 if (TS_State.touchDetected)
bcostm 0:0e730157c767 48 {
bcostm 0:0e730157c767 49 // Clear lines corresponding to old touches coordinates
bcostm 0:0e730157c767 50 if (TS_State.touchDetected < prev_nb_touches)
bcostm 0:0e730157c767 51 {
bcostm 0:0e730157c767 52 for (idx = (TS_State.touchDetected + 1); idx <= 5; idx++)
bcostm 0:0e730157c767 53 {
bcostm 0:0e730157c767 54 lcd.ClearStringLine(idx);
bcostm 0:0e730157c767 55 }
bcostm 0:0e730157c767 56 }
bcostm 0:0e730157c767 57 prev_nb_touches = TS_State.touchDetected;
bcostm 0:0e730157c767 58
bcostm 0:0e730157c767 59 cleared = 0;
bcostm 0:0e730157c767 60
bcostm 0:0e730157c767 61 sprintf((char*)text, "Touches: %d", TS_State.touchDetected);
bcostm 0:0e730157c767 62 lcd.DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
bcostm 0:0e730157c767 63
bcostm 0:0e730157c767 64 for (idx = 0; idx < TS_State.touchDetected; idx++)
bcostm 0:0e730157c767 65 {
bcostm 0:0e730157c767 66 x = TS_State.touchX[idx];
bcostm 0:0e730157c767 67 y = TS_State.touchY[idx];
bcostm 0:0e730157c767 68 sprintf((char*)text, "Touch %d: x=%d y=%d ", idx+1, x, y);
bcostm 0:0e730157c767 69 lcd.DisplayStringAt(0, LINE(idx+1), (uint8_t *)&text, LEFT_MODE);
bcostm 0:0e730157c767 70 lcd.FillCircle(TS_State.touchX[idx], TS_State.touchY[idx], 20);
bcostm 0:0e730157c767 71 }
bcostm 0:0e730157c767 72 }
bcostm 0:0e730157c767 73 else
bcostm 0:0e730157c767 74 {
bcostm 0:0e730157c767 75 if (!cleared)
bcostm 0:0e730157c767 76 {
bcostm 0:0e730157c767 77 lcd.Clear(LCD_COLOR_BLUE);
bcostm 0:0e730157c767 78 sprintf((char*)text, "Touches: 0");
bcostm 0:0e730157c767 79 lcd.DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
bcostm 0:0e730157c767 80 cleared = 1;
bcostm 0:0e730157c767 81 }
bcostm 0:0e730157c767 82 }
bcostm 0:0e730157c767 83 }
bcostm 0:0e730157c767 84 }