Andrew Reed
Capsense buttons and Slider, output to Serial over i2c and tft display
Diff: main.cpp
- Revision:
- 1:cf461b359823
- Parent:
- 0:4ad2c16b6e43
--- a/main.cpp Fri Aug 09 23:18:24 2019 +0000
+++ b/main.cpp Mon Dec 02 22:55:59 2019 +0000
@@ -2,980 +2,305 @@
#include "GUI.h"
#include "cy8ckit_028_tft.h"
#define Cy_SysLib_Delay wait_ms
+#include "cy_pdl.h"
+#include "cycfg_capsense.h"
+#include "cycfg.h"
DigitalOut ledGreen(LED_GREEN);
-DigitalIn sw2(SWITCH2, PullUp);
DigitalOut ledRed(LED_RED);
DigitalOut ledBlue(LED_BLUE);
-DigitalInOut LCD_REG0(P9_0);
-DigitalInOut LCD_REG1(P9_1);
-DigitalInOut LCD_REG2(P9_2);
-DigitalInOut LCD_REG3(P9_4);
-DigitalInOut LCD_REG4(P9_5);
-DigitalInOut LCD_REG5(P0_2);
-DigitalInOut LCD_REG6(P13_0);
-DigitalInOut LCD_REG7(P13_1);
-
-DigitalOut LCD_NWR(P12_0);
-DigitalOut LCD_DC(P12_1);
-DigitalOut LCD_RESET(P12_2);
-DigitalOut LCD_NRD(P12_3);
-
-#define NUMBER_OF_DEMO_PAGES (10u)
-
/* Macros for switch press status */
#define BTN_PRESSED (0u)
#define BTN_RELEASED (1u)
-/* Macros to control LEDs */
-#define LED_ON (0)
-#define LED_OFF (1)
-
+/***************************************************************************
+* Global constants
+***************************************************************************/
+#define SLIDER_NUM_TOUCH (1u) /* Number of touches on the slider */
+#define LED_OFF (1u)
+#define LED_ON (0u)
+#define CAPSENSE_SCAN_PERIOD_MS (20u) /* milliseconds */
-/* External global references */
-//extern GUI_CONST_STORAGE GUI_BITMAP bmCypressLogo_1bpp;
+/***************************************
+* Function Prototypes
+**************************************/
+void RunCapSenseScan(void);
+void InitTunerCommunication(void);
+void ProcessTouchStatus(void);
+void EZI2C_InterruptHandler(void);
+void CapSense_InterruptHandler(void);
+void CapSenseEndOfScanCallback(cy_stc_active_scan_sns_t * ptrActiveScan);
+void InitCapSenseClock(void);
-extern GUI_CONST_STORAGE GUI_BITMAP bmExampleImage;
-extern GUI_CONST_STORAGE GUI_BITMAP bmCypressLogo;
-/* Function prototypes */
-void ShowTextModes(void);
-void ShowTextColors(void);
-void ShowFontSizesNormal(void);
-void ShowFontSizesBold(void);
-void ShowColorBar(void);
-void Show2DGraphics1(void);
-void Show2DGraphics2(void);
-void ShowConcentricCircles(void);
-void ShowTextWrapAndOrientation(void);
-void ShowBitmap(void);
+/*******************************************************************************
+* Interrupt configuration
+*******************************************************************************/
+const cy_stc_sysint_t CapSense_ISR_cfg =
+{
+ .intrSrc = CYBSP_CSD_IRQ,
+ .intrPriority = 4u
+};
-/* Array of demo pages functions */
-void (*demoPageArray[NUMBER_OF_DEMO_PAGES])(void) = {
- ShowTextModes,
- ShowTextColors,
- ShowFontSizesNormal,
- ShowFontSizesBold,
- ShowTextWrapAndOrientation,
- ShowColorBar,
- Show2DGraphics1,
- Show2DGraphics2,
- ShowConcentricCircles,
- ShowBitmap
+const cy_stc_sysint_t EZI2C_ISR_cfg = {
+ .intrSrc = CYBSP_CSD_COMM_IRQ,
+ .intrPriority = 3u
};
/*******************************************************************************
-* Function Name: void ShowStartupScreen(void)
+* Global variables
+*******************************************************************************/
+Semaphore capsense_sem;
+EventQueue queue;
+cy_stc_scb_ezi2c_context_t EZI2C_context;
+uint32_t prevBtn0Status = 0u;
+uint32_t prevBtn1Status = 0u;
+uint32_t prevSliderPos = 0u;
+
+/*****************************************************************************
+* Function Name: RunCapSenseScan()
+******************************************************************************
+* Summary:
+* This function starts the scan, and processes the touch status. It is
+* periodically called by an event dispatcher.
+*
+*****************************************************************************/
+void RunCapSenseScan(void)
+{
+ Cy_CapSense_ScanAllWidgets(&cy_capsense_context);
+ capsense_sem.acquire();
+ Cy_CapSense_ProcessAllWidgets(&cy_capsense_context);
+ Cy_CapSense_RunTuner(&cy_capsense_context);
+ ProcessTouchStatus();
+}
+
+
+/*******************************************************************************
+* Function Name: InitTunerCommunication
+********************************************************************************
+*
+* Summary:
+* This function performs the following functions:
+* - Initializes SCB block for operation in EZI2C mode
+* - Configures EZI2C pins
+* - Configures EZI2C clock
+* - Sets communication data buffer to CapSense data structure
+*
+*******************************************************************************/
+void InitTunerCommunication(void)
+{
+ /* Initialize EZI2C pins */
+ Cy_GPIO_Pin_Init(CYBSP_EZI2C_SCL_PORT, CYBSP_EZI2C_SCL_PIN, &CYBSP_EZI2C_SCL_config);
+ Cy_GPIO_Pin_Init(CYBSP_EZI2C_SDA_PORT, CYBSP_EZI2C_SDA_PIN, &CYBSP_EZI2C_SDA_config);
+
+ /* Configure the peripheral clock for EZI2C */
+ Cy_SysClk_PeriphAssignDivider(PCLK_SCB3_CLOCK, CY_SYSCLK_DIV_8_BIT, 1U);
+ Cy_SysClk_PeriphDisableDivider(CY_SYSCLK_DIV_8_BIT, 1U);
+ Cy_SysClk_PeriphSetDivider(CY_SYSCLK_DIV_8_BIT, 1U, 7U);
+ Cy_SysClk_PeriphEnableDivider(CY_SYSCLK_DIV_8_BIT, 1U);
+
+ Cy_SCB_EZI2C_Init(CYBSP_CSD_COMM_HW, &CYBSP_CSD_COMM_config, &EZI2C_context);
+
+ /* Initialize and enable EZI2C interrupts */
+ Cy_SysInt_Init(&EZI2C_ISR_cfg, &EZI2C_InterruptHandler);
+ NVIC_EnableIRQ(EZI2C_ISR_cfg.intrSrc);
+
+ /* Set up communication data buffer to CapSense data structure to be exposed
+ * to I2C master at primary slave address request.
+ */
+ Cy_SCB_EZI2C_SetBuffer1(CYBSP_CSD_COMM_HW, (uint8 *)&cy_capsense_tuner,
+ sizeof(cy_capsense_tuner), sizeof(cy_capsense_tuner), &EZI2C_context);
+
+ /* Enable EZI2C block */
+ Cy_SCB_EZI2C_Enable(CYBSP_CSD_COMM_HW);
+}
+
+
+/*******************************************************************************
+* Function Name: ProcessTouchStatus
********************************************************************************
*
-* Summary: This function displays the startup screen.
+* Summary:
+* Controls the LED status according to the status of CapSense widgets and
+* prints the status to serial terminal.
+*
+*******************************************************************************/
+void ProcessTouchStatus(void)
+{
+ uint32_t currSliderPos;
+ uint32_t currBtn0Status = Cy_CapSense_IsSensorActive(CY_CAPSENSE_BUTTON0_WDGT_ID, CY_CAPSENSE_BUTTON0_SNS0_ID, &cy_capsense_context);
+ uint32_t currBtn1Status = Cy_CapSense_IsSensorActive(CY_CAPSENSE_BUTTON1_WDGT_ID, CY_CAPSENSE_BUTTON1_SNS0_ID, &cy_capsense_context);
+ cy_stc_capsense_touch_t *sldrTouch = Cy_CapSense_GetTouchInfo(CY_CAPSENSE_LINEARSLIDER0_WDGT_ID, &cy_capsense_context);
+ char outputString[80];
+ if(currBtn0Status != prevBtn0Status)
+ {
+ printf("Button_0 status: %u\r\n", currBtn0Status);
+ sprintf(outputString," Button_0 status: %u ", currBtn0Status);
+ GUI_SetTextAlign(GUI_TA_HCENTER);
+ GUI_DispStringAt(outputString, 160, 60);
+ prevBtn0Status = currBtn0Status;
+ }
+
+ if(currBtn1Status != prevBtn1Status)
+ {
+ printf("Button_1 status: %u\r\n", currBtn1Status);
+ sprintf(outputString," Button_1 status: %u ", currBtn1Status);
+ GUI_SetTextAlign(GUI_TA_HCENTER);
+ GUI_DispStringAt(outputString, 160, 80);
+ prevBtn1Status = currBtn1Status;
+ }
+
+ if (sldrTouch->numPosition == SLIDER_NUM_TOUCH)
+ {
+ currSliderPos = sldrTouch->ptrPosition->x;
+
+ if(currSliderPos != prevSliderPos)
+ {
+ printf("Slider position: %u\r\n", currSliderPos);
+ sprintf(outputString," Slider position: %u ", currSliderPos);
+ GUI_SetTextAlign(GUI_TA_HCENTER);
+ GUI_DispStringAt(outputString, 160, 100);
+ prevSliderPos = currSliderPos;
+ }
+ }
+
+ ledRed = (currBtn0Status || currBtn1Status || (sldrTouch->numPosition == SLIDER_NUM_TOUCH)) ? LED_ON : LED_OFF;
+}
+
+
+/*******************************************************************************
+* Function Name: EZI2C_InterruptHandler
+********************************************************************************
+* Summary:
+* Wrapper function for handling interrupts from EZI2C block.
+*
+*******************************************************************************/
+void EZI2C_InterruptHandler(void)
+{
+ Cy_SCB_EZI2C_Interrupt(CYBSP_CSD_COMM_HW, &EZI2C_context);
+}
+
+/*****************************************************************************
+* Function Name: CapSense_InterruptHandler()
+******************************************************************************
+* Summary:
+* Wrapper function for handling interrupts from CSD block.
+*
+*****************************************************************************/
+void CapSense_InterruptHandler(void)
+{
+ Cy_CapSense_InterruptHandler(CYBSP_CSD_HW, &cy_capsense_context);
+}
+
+
+/*****************************************************************************
+* Function Name: CapSenseEndOfScanCallback()
+******************************************************************************
+* Summary:
+* This function releases a semaphore to indicate end of a CapSense scan.
*
* Parameters:
-* None
+* cy_stc_active_scan_sns_t* : pointer to active sensor details.
+*
+*****************************************************************************/
+void CapSenseEndOfScanCallback(cy_stc_active_scan_sns_t * ptrActiveScan)
+{
+ capsense_sem.release();
+}
+
+
+/*****************************************************************************
+* Function Name: InitCapSenseClock()
+******************************************************************************
+* Summary:
+* This function configures the peripheral clock for CapSense.
*
-* Return:
-* None
+*****************************************************************************/
+void InitCapSenseClock(void)
+{
+ Cy_SysClk_PeriphAssignDivider(PCLK_CSD_CLOCK, CYBSP_CSD_CLK_DIV_HW, CYBSP_CSD_CLK_DIV_NUM);
+ Cy_SysClk_PeriphDisableDivider(CYBSP_CSD_CLK_DIV_HW, CYBSP_CSD_CLK_DIV_NUM);
+ Cy_SysClk_PeriphSetDivider(CYBSP_CSD_CLK_DIV_HW, CYBSP_CSD_CLK_DIV_NUM, 0u);
+ Cy_SysClk_PeriphEnableDivider(CYBSP_CSD_CLK_DIV_HW, CYBSP_CSD_CLK_DIV_NUM);
+}
+
+/*****************************************************************************
+* Function Name: main()
+******************************************************************************
+* Summary:
+* Main function that starts a thread for CapSense scan and enters a forever
+* wait state.
*
-*******************************************************************************/
-void ShowStartupScreen(void)
+*****************************************************************************/
+int main(void)
{
+ /* Turn off both red and green LEDs */
+ ledGreen = LED_OFF;
+ ledRed = LED_OFF;
+ ledBlue = LED_OFF;
+ char outputString[80];
+
+ /* Initialize EmWin driver*/
+ GUI_Init();
/* Set font size, foreground and background Colours */
GUI_SetFont(GUI_FONT_16B_1);
GUI_SetColor(GUI_WHITE);
GUI_SetBkColor(GUI_BLACK);
- /* Clear the screen */
GUI_Clear();
-
- /* Draw the Cypress Logo */
- GUI_DrawBitmap(&bmCypressLogo, 4, 4);
-
- /* Print the text CYPRESS EMWIN GRAPHICS DEMO TFT DISPLAY */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("CYPRESS", 160, 120);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("EMWIN GRAPHICS DEMO", 160, 140);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("TFT DISPLAY", 160, 160);
-}
-
-
-/*******************************************************************************
-* Function Name: void ShowInstructionsScreen(void)
-********************************************************************************
-*
-* Summary: This function shows screen with instructions to press SW2 to
-* scroll through various display pages
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void ShowInstructionsScreen(void)
-{
- /* Set font size, background Colour and text mode */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetColor(GUI_WHITE);
- GUI_SetTextMode(GUI_TM_NORMAL);
-
- /* Clear the display */
- GUI_Clear();
-
- /* Display instructions text */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("PRESS SW2 ON THE KIT", 160, 90);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("TO SCROLL THROUGH ", 160, 110);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("DEMO PAGES!", 160, 130);
-}
-
-
-/*******************************************************************************
-* Function Name: void ShowTextModes(void)
-********************************************************************************
-*
-* Summary: This function displays the following
-* 1. Left, Center and Right aligned text
-* 2. Underline, overline and strikethrough style text
-* 3. Normal, reverse, transparent and XOR text modes
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void ShowTextModes(void)
-{
- /* Set font size, foreground and background Colours */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetColor(GUI_WHITE);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetTextMode(GUI_TM_NORMAL);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Clear the screen */
- GUI_Clear();
-
- /* Display page title */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
- GUI_DispStringAt("1 OF 10: TEXT ALIGNMENTS, STYLES AND MODES", 160, 10);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Display left aligned text */
- GUI_SetTextAlign(GUI_TA_LEFT);
- GUI_DispStringAt("TEXT ALIGNMENT LEFT", 0, 40);
-
- /* Display center aligned text */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("TEXT ALIGNMENT CENTER", 160, 60);
-
- /* Display right aligned text */
- GUI_SetTextAlign(GUI_TA_RIGHT);
- GUI_DispStringAt("TEXT ALIGNMENT RIGHT", 319, 80);
-
- /* Display underlined text */
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
- GUI_SetTextAlign(GUI_TA_LEFT);
- GUI_DispStringAt("TEXT STYLE UNDERLINE", 0, 100);
-
- /* Display overlined text */
- GUI_SetTextStyle(GUI_TS_OVERLINE);
- GUI_SetTextAlign(GUI_TA_LEFT);
- GUI_DispStringAt("TEXT STYLE OVERLINE", 0, 120);
-
- /* Display strikethrough text */
- GUI_SetTextStyle(GUI_TS_STRIKETHRU);
- GUI_SetTextAlign(GUI_TA_LEFT);
- GUI_DispStringAt("TEXT STYLE STRIKETHROUGH", 0, 140);
-
- /* Create a rectangle filled with blue Colour */
- GUI_SetColor(GUI_BROWN);
- GUI_FillRect(0, 160, 319, 239);
-
- /* Draw two diagonal lines */
- GUI_SetColor(GUI_BLUE);
- GUI_SetPenSize(3);
- GUI_DrawLine(0, 160, 319, 239);
- GUI_DrawLine(0, 239, 319, 160);
-
- /* Set text Colour to white with black background */
- GUI_SetColor(GUI_WHITE);
- GUI_SetBkColor(GUI_BLACK);
-
- /* Set text style to normal */
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Display text in normal mode. This will print white text in
- a black box */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextMode(GUI_TM_NORMAL);
- GUI_DispStringAt("TEXT MODE NORMAL", 160, 165);
-
- /* Display text in reverse mode. This will print black text n
- a white box */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextMode(GUI_TM_REV);
- GUI_DispStringAt("TEXT MODE REVERSE", 160, 185);
-
- /* Display transparent text. This will display white text
- on the blue background already present in the rectangle */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextMode(GUI_TM_TRANS);
- GUI_DispStringAt("TEXT MODE TRANSPARENT", 160, 205);
-
- /* Display XOR text. This will XOR the blue background with
- the white text */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextMode(GUI_TM_XOR);
- GUI_DispStringAt("TEXT MODE XOR", 160, 225);
-}
-
-
-/*******************************************************************************
-* Function Name: void ShowTextColors(void)
-********************************************************************************
-*
-* Summary: This function displays text in various Colours
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void ShowTextColors(void)
-{
- /* Set font size, background Colour and text mode */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetTextMode(GUI_TM_NORMAL);
-
- /* Clear the display */
- GUI_Clear();
-
- /* Display page title */
GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
- GUI_SetColor(GUI_WHITE);
- GUI_DispStringAt("2 OF 10: TEXT COLOURS", 160, 10);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* White */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_WHITE);
- GUI_DispStringAt("TEXT COLOUR WHITE", 160, 40);
-
- /* Gray */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_GRAY);
- GUI_DispStringAt("TEXT COLOUR GRAY", 160, 60);
-
- /* Red */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_RED);
- GUI_DispStringAt("TEXT COLOUR RED", 160, 80);
-
- /* Green */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_GREEN);
- GUI_DispStringAt("TEXT COLOUR GREEN", 160, 100);
-
- /* Blue */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_BLUE);
- GUI_DispStringAt("TEXT COLOUR BLUE", 160, 120);
-
- /* Yellow */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_YELLOW);
- GUI_DispStringAt("TEXT COLOUR YELLOW", 160, 140);
-
- /* Brown */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_BROWN);
- GUI_DispStringAt("TEXT COLOUR BROWN", 160, 160);
-
- /* Magenta */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_MAGENTA);
- GUI_DispStringAt("TEXT COLOUR MAGENTA", 160, 180);
-
- /* Cyan */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_CYAN);
- GUI_DispStringAt("TEXT COLOUR CYAN", 160, 200);
-
- /* Orange */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetColor(GUI_ORANGE);
- GUI_DispStringAt("TEXT COLOUR ORANGE", 160, 220);
-}
-
-
-/*******************************************************************************
-* Function Name: void ShowFontSizesNormal(void)
-********************************************************************************
-*
-* Summary: This function shows various font sizes
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void ShowFontSizesNormal(void)
-{
- /* Set font size, background colour and text mode */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetTextMode(GUI_TM_NORMAL);
- GUI_SetColor(GUI_GRAY);
-
- /* Clear the display */
- GUI_Clear();
-
- /* Display page title */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
- GUI_DispStringAt("3 OF 10: NORMAL FONTS", 160, 10);
- GUI_SetTextStyle(GUI_TS_NORMAL);
+ GUI_DispStringAt("Capsense Demo", 160, 20);
- /* Font8_1*/
- GUI_SetFont(GUI_FONT_8_1);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetColor(GUI_GRAY);
- GUI_SetTextMode(GUI_TM_NORMAL);
- GUI_DispStringAt("GUI_Font8_1", 10, 40);
-
- /* Font10_1*/
- GUI_SetFont(GUI_FONT_10_1);
- GUI_DispStringAt("GUI_Font10_1", 10, 50);
-
- /* Font13_1*/
- GUI_SetFont(GUI_FONT_13_1);
- GUI_DispStringAt("GUI_Font13_1", 10, 62);
-
- /* Font16_1*/
- GUI_SetFont(GUI_FONT_16_1);
- GUI_DispStringAt("GUI_Font16_1", 10, 77);
-
- /* Font20_1*/
- GUI_SetFont(GUI_FONT_20_1);
- GUI_DispStringAt("GUI_Font20_1", 10, 95);
-
- /* Font24_1*/
- GUI_SetFont(GUI_FONT_24_1);
- GUI_DispStringAt("GUI_Font24_1", 10, 117);
-
- /* Font32_1*/
- GUI_SetFont(GUI_FONT_32_1);
- GUI_DispStringAt("GUI_Font32_1", 10, 143);
+ /* Configure AMUX bus for CapSense */
+ init_cycfg_routing();
+
+ /* Configure PERI clocks for CapSense */
+ InitCapSenseClock();
+
+ InitTunerCommunication();
- /* Font48_1*/
- GUI_SetFont(GUI_FONT_8X16X2X2);
- GUI_DispStringAt("GUI_Font8x16x2x2", 10, 180);
-}
-
+ /* Initialize the CSD HW block to the default state. */
+ cy_status status = Cy_CapSense_Init(&cy_capsense_context);
+ if(CY_RET_SUCCESS != status)
+ {
+ printf("CapSense initialization failed. Status code: %u\r\n", status);
+ sprintf(outputString,"CapSense initialization failed. Status code: %u", status);
+ GUI_SetTextAlign(GUI_TA_HCENTER);
+ GUI_DispStringAt(outputString, 160, 40);
+ wait(osWaitForever);
+ }
+
+ /* Initialize CapSense interrupt */
+ Cy_SysInt_Init(&CapSense_ISR_cfg, &CapSense_InterruptHandler);
+ NVIC_ClearPendingIRQ(CapSense_ISR_cfg.intrSrc);
+ NVIC_EnableIRQ(CapSense_ISR_cfg.intrSrc);
-/*******************************************************************************
-* Function Name: void ShowFontSizesBold(void)
-********************************************************************************
-*
-* Summary: This function shows various font sizes
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void ShowFontSizesBold(void)
-{
- /* Set font size, background colour and text mode */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetColor(GUI_GRAY);
- GUI_SetTextMode(GUI_TM_NORMAL);
-
- /* Clear the display */
- GUI_Clear();
-
- /* Display page title */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
- GUI_DispStringAt("4 OF 10: BOLD FONTS", 160, 10);
- GUI_SetTextStyle(GUI_TS_NORMAL);
+ /* Initialize the CapSense firmware modules. */
+ Cy_CapSense_Enable(&cy_capsense_context);
+ Cy_CapSense_RegisterCallback(CY_CAPSENSE_END_OF_SCAN_E, CapSenseEndOfScanCallback, &cy_capsense_context);
+
+ /* Create a thread to run CapSense scan periodically using an event queue
+ * dispatcher.
+ */
+ Thread thread(osPriorityNormal, OS_STACK_SIZE, NULL, "CapSense Scan Thread");
+ thread.start(callback(&queue, &EventQueue::dispatch_forever));
+ queue.call_every(CAPSENSE_SCAN_PERIOD_MS, RunCapSenseScan);
- /* Font13B_1*/
- GUI_SetFont(GUI_FONT_13B_1);
- GUI_DispStringAt("GUI_Font13B_1", 10, 40);
-
- /* Font13HB_1*/
- GUI_SetFont(GUI_FONT_13HB_1);
- GUI_DispStringAt("GUI_Font13HB_1", 10, 55);
-
- /* Font16B_1*/
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_DispStringAt("GUI_Font6B_1", 10, 70);
-
- /* FontComic18B_1*/
- GUI_SetFont(GUI_FONT_COMIC18B_1);
- GUI_DispStringAt("GUI_FontComic18B_1", 10, 88);
-
- /* Font20B_1*/
- GUI_SetFont(GUI_FONT_20B_1);
- GUI_DispStringAt("GUI_Font20B_1", 10, 108);
-
- /* Font24B_1*/
- GUI_SetFont(GUI_FONT_24B_1);
- GUI_DispStringAt("GUI_Font24B_1", 10, 130);
-
- /* Font32B_1*/
- GUI_SetFont(GUI_FONT_32B_1);
- GUI_DispStringAt("GUI_Font32B_1", 10, 156);
-
- /* Font48B_1*/
- GUI_SetFont(GUI_FONT_8X16X3X3);
- GUI_DispStringAt("GUI_Font8x16x3x3", 10, 190);
+ /* Initiate scan immediately since the first call of RunCapSenseScan()
+ * happens CAPSENSE_SCAN_PERIOD_MS after the event queue dispatcher has
+ * started.
+ */
+ Cy_CapSense_ScanAllWidgets(&cy_capsense_context);
+
+ printf("\r\nApplication has started. Touch any CapSense button or slider.\r\n");
+ sprintf(outputString,"\r\nApplication has started.\r\n Touch any CapSense button or slider.");
+ GUI_SetTextAlign(GUI_TA_HCENTER);
+ GUI_DispStringAt(outputString, 160, 180);
+ wait(osWaitForever);
+
}
-
-/*******************************************************************************
-* Function Name: void ShowColorBar(void)
-********************************************************************************
-*
-* Summary: This function displays displays horizontal colour bars. For each
-* colour, two bars are printed, one bar that has a gradient from
-* black to the colour and another bar that has a gradient from white
-* to the colour.
-*
-* Note: This function is provided by EmWin as a demo code.
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void ShowColorBar(void)
-{
- /* Local variables */
- int x0;
- int y0;
- int yStep;
- int i;
- int xsize;
- U16 cs;
- U16 x;
-
- /* Initialize parameters */
- x0 = 60;
- y0 = 40;
- yStep = 15;
- xsize = LCD_GetDevCap(LCD_DEVCAP_XSIZE) - x0;
-
- /* Clear the screen */
- GUI_Clear();
-
- /* Display page title */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetColor(GUI_WHITE);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetTextMode(GUI_TM_NORMAL);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
- GUI_DispStringAt("6 OF 10: COLOUR BARS", 160, 5);
-
- /* Set text mode to normal and left alignment */
- GUI_SetTextMode(GUI_TM_NORMAL);
- GUI_SetTextAlign(GUI_TA_LEFT);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Display labels for the bars */
- GUI_SetFont(&GUI_Font8x16);
- GUI_SetColor(GUI_WHITE);
- GUI_SetBkColor(GUI_BLACK);
- GUI_DispStringAt("Red", 0, y0 + yStep);
- GUI_DispStringAt("Green", 0, y0 + 3 * yStep);
- GUI_DispStringAt("Blue", 0, y0 + 5 * yStep);
- GUI_DispStringAt("Yellow", 0, y0 + 7 * yStep);
- GUI_DispStringAt("Cyan", 0, y0 + 9 * yStep);
- GUI_DispStringAt("Magenta", 0, y0 + 11 * yStep);
-
- /* Draw the colour bars */
- for (i = 0; i < xsize; i++)
- {
- cs = (0xFF * (U32)i) / xsize;
- x = x0 + i;;
-
- /* Red */
- GUI_SetColor(cs);
- GUI_DrawVLine(x, y0 , y0 + yStep - 1);
- GUI_SetColor(0xff + (255 - cs) * 0x10100uL);
- GUI_DrawVLine(x, y0 + yStep, y0 + 2 * yStep - 1);
-
- /* Green */
- GUI_SetColor(cs<<8);
- GUI_DrawVLine(x, y0 + 2 * yStep, y0 + 3 * yStep - 1);
- GUI_SetColor(0xff00 + (255 - cs) * 0x10001uL);
- GUI_DrawVLine(x, y0 + 3 * yStep, y0 + 4 * yStep - 1);
-
- /* Blue */
- GUI_SetColor(cs * 0x10000uL);
- GUI_DrawVLine(x, y0 + 4 * yStep, y0 + 5 * yStep - 1);
- GUI_SetColor(0xff0000 + (255 - cs) * 0x101uL);
- GUI_DrawVLine(x, y0 + 5 * yStep, y0 + 6 * yStep - 1);
-
- /* Yellow */
- GUI_SetColor(cs * 0x101uL);
- GUI_DrawVLine(x, y0 + 6 * yStep, y0 + 7 * yStep - 1);
- GUI_SetColor(0xffff + (255 - cs) * 0x10000uL);
- GUI_DrawVLine(x, y0 + 7 * yStep, y0 + 8 * yStep - 1);
-
- /* Cyan */
- GUI_SetColor(cs * 0x10100uL);
- GUI_DrawVLine(x, y0 + 8 * yStep, y0 + 9 * yStep - 1);
- GUI_SetColor(0xffff00 + (255 - cs) * 0x1L);
- GUI_DrawVLine(x, y0 + 9 * yStep, y0 + 10 * yStep - 1);
-
- /* Magenta */
- GUI_SetColor(cs * 0x10001uL);
- GUI_DrawVLine(x, y0 + 10 * yStep, y0 + 11 * yStep - 1);
- GUI_SetColor(0xff00ff + (255 - cs) * 0x100uL);
- GUI_DrawVLine(x, y0 + 11 * yStep, y0 + 12 * yStep - 1);
- }
-}
-
-
-/*******************************************************************************
-* Function Name: void Show2DGraphics1(void)
-********************************************************************************
-*
-* Summary: This function displays the following 2D graphics
-* 1. Horizontal lines with various pen widths
-* 2. Vertical lines with various pen widths
-* 3. Arcs
-* 4. Filled rounded rectangle
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void Show2DGraphics1(void)
-{
- /* Set font size, foreground and background colours */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetColor(GUI_WHITE);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetTextMode(GUI_TM_NORMAL);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Clear the screen */
- GUI_Clear();
-
- /* Display page title */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
- GUI_DispStringAt("7 OF 10: 2D GRAPHICS - 1", 160, 10);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Set drawing colour to gray */
- GUI_SetColor(GUI_GRAY);
-
- /* Display labels */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("H-LINES", 80, 110);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("V-LINES", 240, 110);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("ARCS", 80, 220);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("ROUNDED RECT", 240, 220);
-
- /* Horizontal lines */
- GUI_SetPenSize(1);
- GUI_DrawLine(10, 35, 150, 35);
- GUI_SetPenSize(2);
- GUI_DrawLine(10, 50, 150, 50);
- GUI_SetPenSize(3);
- GUI_DrawLine(10, 65, 150, 65);
- GUI_SetPenSize(4);
- GUI_DrawLine(10, 80, 150, 80);
- GUI_SetPenSize(5);
- GUI_DrawLine(10, 95, 150, 95);
-
- /* Vertical lines */
- GUI_SetPenSize(1);
- GUI_DrawLine(210, 30, 210, 100);
- GUI_SetPenSize(2);
- GUI_DrawLine(225, 30, 225, 100);
- GUI_SetPenSize(3);
- GUI_DrawLine(240, 30, 240, 100);
- GUI_SetPenSize(4);
- GUI_DrawLine(255, 30, 255, 100);
- GUI_SetPenSize(5);
- GUI_DrawLine(270, 30, 270, 100);
-
- /* Arcs */
- GUI_SetPenSize(2);
- GUI_DrawArc(80, 210, 10, 10, 0, 180);
- GUI_DrawArc(80, 210, 20, 20, 0, 180);
- GUI_DrawArc(80, 210, 30, 30, 0, 180);
- GUI_DrawArc(80, 210, 40, 40, 0, 180);
- GUI_DrawArc(80, 210, 50, 50, 0, 180);
- GUI_DrawArc(80, 210, 60, 60, 0, 180);
-
- /* Rounded rectangle */
- GUI_FillRoundedRect(180, 150, 300, 210, 5);
-}
-
-
-/*******************************************************************************
-* Function Name: void Show2DGraphics2(void)
-********************************************************************************
-*
-* Summary: This function displays the following 2D graphics
-* 1. Concentric circles
-* 2. Concentric ellipses
-* 3. Filled rectangle with horizontal colour gradient
-* 4. Filled rectangle with vertical colour gradient
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void Show2DGraphics2(void)
-{
- /* Set font size, foreground and background colours */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetColor(GUI_WHITE);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetTextMode(GUI_TM_NORMAL);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Clear the screen */
- GUI_Clear();
-
- /* Display page title */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
- GUI_DispStringAt("8 OF 10: 2D GRAPHICS - 2", 160, 10);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Set drawing colour to gray */
- GUI_SetColor(GUI_GRAY);
-
- /* Display labels */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("CIRCLE", 80, 110);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("ELLIPSE", 240, 110);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("RECT-HGRAD", 80, 220);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("RECT-VGRAD", 240, 220);
-
- /* Concentric Circles */
- GUI_DrawCircle(80, 65, 35);
- GUI_DrawCircle(80, 65, 25);
- GUI_DrawCircle(80, 65, 15);
- GUI_DrawCircle(80, 65, 5);
-
- /* Concentric Ellipses */
- GUI_DrawEllipse(240, 65, 60, 35);
- GUI_DrawEllipse(240, 65, 50, 25);
- GUI_DrawEllipse(240, 65, 40, 15);
- GUI_DrawEllipse(240, 65, 30, 5);
-
- /* Rectangle horizontal gradient */
- GUI_DrawGradientH(20, 150, 140, 210, GUI_BLACK, GUI_GREEN);
-
- /* Rectangle vertical gradient */
- GUI_DrawGradientV(180, 150, 300, 210, GUI_RED, GUI_BLACK);
-}
-
-
-/*******************************************************************************
-* Function Name: void ShowConcentricCircles(void)
-********************************************************************************
-*
-* Summary: This function displays a short animation by drawing concentric circles
-* with colour gradients
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void ShowConcentricCircles(void)
-{
- #define NUMBER_OF_COLOURS (3u)
- #define MAX_RADIUS (100u)
-
- uint16 radius = 0;
- uint16 colourIndex = 0;
-
- const uint32 colourArray[NUMBER_OF_COLOURS] =
- {
- GUI_RED,
- GUI_BLUE,
- GUI_GREEN,
- };
-
- /* Set font size, background colour and text mode */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetTextMode(GUI_TM_NORMAL);
-
- /* Clear the display */
- GUI_Clear();
-
- /* Display page title */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
- GUI_SetColor(GUI_WHITE);
- GUI_DispStringAt("9 OF 10: CONCENTRIC CIRCLES", 160, 10);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Draw concentric circles with colour gradient */
- /* Cycle through number of colours */
- for(colourIndex = 0; colourIndex < NUMBER_OF_COLOURS; colourIndex++)
- {
- /* Draw circles with increasing radius */
- for(radius = 0; radius < MAX_RADIUS; radius++)
- {
- GUI_SetColor(radius*colourArray[colourIndex]);
- GUI_DrawCircle(160, 130, radius);
- CyDelay(2);
- }
- }
-}
-
-
-/*******************************************************************************
-* Function Name: void ShowBitmap(void)
-********************************************************************************
-*
-* Summary: This function displays a bitmap image with an overlay text
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-void ShowTextWrapAndOrientation(void)
-{
- GUI_RECT leftRect = {4, 19, 24, 166};
- GUI_RECT rightRect = {238, 19, 258, 166};
- GUI_RECT middleRect = {29, 19, 233, 166};
- GUI_RECT middleRectMargins = {31, 20, 232, 165};
- GUI_RECT bottomRect = {31, 170, 232, 220};
-
- const char leftText[] = "ROTATED TEXT CCW";
- const char rightText[] = "ROTATED TEXT CW";
- const char bottomText[] = "INVERTED TEXT 180";
-
- const char middleText[] = "This project demonstrates displaying 2D graphics in a TFT display using Segger EmWin Graphics Library. \n\nThis page shows the text wrap and text rotation features. In the left rectangle, the text is rotated counter clockwise and in the right rectangle, the text is rotated clockwise.";
-
-
- /* Set font size, foreground and background colours */
- GUI_SetFont(GUI_FONT_13B_1);
- GUI_SetColor(GUI_WHITE);
- GUI_SetBkColor(GUI_BLACK);
- GUI_SetTextMode(GUI_TM_NORMAL);
- GUI_SetTextStyle(GUI_TS_NORMAL);
-
- /* Clear the screen */
- GUI_Clear();
-
- /* Display page title */
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_DispStringAt("5 OF 10: TEXT WRAP AND ROTATION", 132, 5);
-
- /* Draw rectangles to hold text */
- GUI_DrawRectEx(&leftRect);
- GUI_DrawRectEx(&rightRect);
- GUI_DrawRectEx(&middleRect);
- GUI_DrawRectEx(&bottomRect);
-
- /* Display string in left rectangle rotated counter clockwise */
- GUI_DispStringInRectEx(leftText, &leftRect, GUI_TA_HCENTER | GUI_TA_VCENTER, strlen(leftText), GUI_ROTATE_CCW);
-
- /* Display string in right rectangle rotated clockwise */
- GUI_DispStringInRectEx(rightText, &rightRect, GUI_TA_HCENTER | GUI_TA_VCENTER, strlen(rightText), GUI_ROTATE_CW);
-
- /* Display string in right rectangle rotated clockwise */
- GUI_DispStringInRectEx(bottomText, &bottomRect, GUI_TA_HCENTER | GUI_TA_VCENTER, strlen(bottomText), GUI_ROTATE_180);
-
- /* Display string in middle rectangle with word wrap */
- GUI_DispStringInRectWrap(middleText, &middleRectMargins, GUI_TA_LEFT, GUI_WRAPMODE_WORD);
-
-}
-void ShowBitmap(void)
-{
- /* Set background colour to black and clear screen */
- GUI_SetBkColor(GUI_BLACK);
- GUI_Clear();
-
- /* Display the bitmap image on the screen */
- GUI_DrawBitmap(&bmExampleImage, 0, 4);
-
- /* Set font size, font colour to black */
- GUI_SetFont(GUI_FONT_16B_1);
- GUI_SetColor(GUI_BLACK);
-
- /* Set text mode to transparent, underlined and center aligned */
- GUI_SetTextMode(GUI_TM_TRANS);
- GUI_SetTextAlign(GUI_TA_HCENTER);
- GUI_SetTextStyle(GUI_TS_UNDERLINE);
-
- /* Print the page title text */
- GUI_DispStringAt("10 OF 10: BITMAP IMAGE", 160, 10);
-}
-
-
-/*******************************************************************************
-* Function Name: bool IsBtnClicked
-********************************************************************************
-*
-* Summary: This non-blocking function implements SW2 button click check.
-*
-* Parameters:
-* None
-*
-* Return:
-* Status of the SW2 button:
-* true when button was pressed and then released and
-* false in other cases
-*
-*******************************************************************************/
-bool IsBtnClicked(void)
-{
- int currBtnState;
- static int prevBtnState = BTN_RELEASED;
-
- bool result = false;
-
- currBtnState = sw2;
-
- if((prevBtnState == BTN_RELEASED) && (currBtnState == BTN_PRESSED))
- {
- result = true;
- }
-
- prevBtnState = currBtnState;
-
- wait_ms(5);
-
- return result;
-}
-
-
-/*******************************************************************************
-* Function Name: int main(void)
-********************************************************************************
-*
-* Summary: This is the main for this code example. This function does the following
-* 1. Initializes the EmWin display engine
-* 2. Displays startup screen for 3 seconds
-* 3. In an infinite loop, displays the following screens on
-* key press and release
-* a. Text alignment, styles and modes
-* b. Text colour
-* c. Normal fonts
-* d. Bold fonts
-* e. colour bars
-* f. 2D graphics #1
-* g. 2D graphics #2
-* h. Concentric circles
-* i. Bitmap image
-*
-* Parameters:
-* None
-*
-* Return:
-* None
-*
-*******************************************************************************/
-int main(void)
-{
- uint8_t pageNumber = 0;
-
- /* Turn off both red and green LEDs */
- ledGreen = LED_OFF;
- ledRed = LED_OFF;
- ledBlue = LED_ON;
-
- /* Initialize EmWin driver*/
- GUI_Init();
-
- /* Display the startup screen for 2 seconds */
- ShowStartupScreen();
- Cy_SysLib_Delay(2000);
-
- /* Show Instructions Screen */
- ShowInstructionsScreen();
-
- /* Display various demo pages in a loop */
- for(;;)
- {
- if(IsBtnClicked())
- {
- /* Using pageNumber as index, update the display with a demo screen
- Following are the functions that are called in sequence
- ShowTextModes()
- ShowTextColors()
- ShowFontSizesNormal()
- ShowFontSizesBold()
- ShowTextWrapAndOrientation()
- ShowColorBar()
- Show2DGraphics1()
- Show2DGraphics2()
- ShowConcentricCircles()
- ShowBitmap()
- */
- (*demoPageArray[pageNumber])();
-
- ledBlue = !ledBlue;
-
- /* Increment page number */
- pageNumber++;
-
- /* If page number exceeds maximum pages, reset */
- if(pageNumber >= NUMBER_OF_DEMO_PAGES)
- {
- pageNumber = 0;
- }
- }
- }
-}
-
-
-/* [] END OF FILE */