main.cpp

00001 #include "mbed.h"
00002 #include "stm32l496g_discovery_lcd.h"
00003 #include "stm32l496g_discovery_ts.h"
00004 
00005 int main()
00006 {
00007     TS_StateTypeDef TS_State;
00008     uint16_t x, y;
00009     uint8_t text[30];
00010     uint8_t idx;
00011     uint8_t cleared = 0;
00012     uint8_t prev_nb_touches = 0;
00013 
00014     BSP_LCD_Init();
00015     BSP_LCD_SetFont(&Font20);
00016     BSP_LCD_Clear(LCD_COLOR_BLUE);
00017     BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
00018     BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
00019     BSP_LCD_DisplayStringAt(0, LINE(4), (uint8_t *)"DISCO_L496AG", CENTER_MODE);
00020     BSP_LCD_DisplayStringAt(0, LINE(5), (uint8_t *)"LCDTS DEMO", CENTER_MODE);
00021     wait(1);
00022 
00023     if (BSP_TS_Init(BSP_LCD_GetXSize(), BSP_LCD_GetYSize()) != TS_OK)
00024     {
00025       BSP_LCD_Clear(LCD_COLOR_RED);
00026       BSP_LCD_SetBackColor(LCD_COLOR_RED);
00027       BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
00028       BSP_LCD_DisplayStringAt(0, LINE(5), (uint8_t *)"TS INIT FAIL", CENTER_MODE);
00029     }
00030     else
00031     {
00032       BSP_LCD_Clear(LCD_COLOR_GREEN);
00033       BSP_LCD_SetBackColor(LCD_COLOR_GREEN);
00034       BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
00035       BSP_LCD_DisplayStringAt(0, LINE(5), (uint8_t *)"TS INIT OK", CENTER_MODE);
00036     }
00037     wait(0.5);
00038 
00039     BSP_LCD_SetFont(&Font16);
00040     BSP_LCD_Clear(LCD_COLOR_BLUE);
00041     BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
00042     BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
00043 
00044     while(1) {
00045 
00046       BSP_TS_GetState(&TS_State);
00047 
00048       if (TS_State.touchDetected)
00049       {
00050         // Clear lines corresponding to old touches coordinates
00051         if (TS_State.touchDetected < prev_nb_touches)
00052         {
00053           for (idx = (TS_State.touchDetected + 1); idx <= TS_MAX_NB_TOUCH; idx++)
00054           {
00055             BSP_LCD_ClearStringLine(idx);
00056           }
00057         }
00058         prev_nb_touches = TS_State.touchDetected;
00059 
00060         cleared = 0;
00061 
00062         sprintf((char*)text, "Touches: %d", TS_State.touchDetected);
00063         BSP_LCD_DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
00064 
00065         for (idx = 0; idx < TS_State.touchDetected; idx++)
00066         {
00067           x = TS_State.touchX[idx];
00068           y = TS_State.touchY[idx];
00069           sprintf((char*)text, "Touch %d: x=%d y=%d", idx+1, x, y);
00070           BSP_LCD_DisplayStringAt(0, LINE(idx+1), (uint8_t *)&text, LEFT_MODE);
00071           BSP_LCD_DrawHLine(x-10, y, 20);
00072           BSP_LCD_DrawVLine(x, y-10, 20);
00073         }
00074       }
00075       else
00076       {
00077         if (!cleared)
00078         {
00079           sprintf((char*)text, "Touches: 0");
00080           BSP_LCD_DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
00081           cleared = 1;
00082         }
00083       }
00084 
00085     }
00086 
00087 }