Andrew Reed / Mbed OS city1082-capsense-sw2-tft-leds

PSoC 6 pioneer kit multi library code for emwin driven tft display, capsense and mechanical button input.

Dependencies:   PinDetect

main.cpp@3:1edcda6af8df, 2019-10-18 (annotated)

Committer:
reedas
Date:
Fri Oct 18 21:14:25 2019 +0000
Revision:
3:1edcda6af8df
Parent:
2:02954bc28fc5 
Example of using different libraries to build a program. (emwin graphics, Pindetect key debouncing, capsense switch input.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
reedas 0:4ad2c16b6e43 1 #include "mbed.h"
reedas 0:4ad2c16b6e43 2 #include "GUI.h"
reedas 0:4ad2c16b6e43 3 #include "cy8ckit_028_tft.h"
reedas 0:4ad2c16b6e43 4 #define Cy_SysLib_Delay wait_ms
reedas 1:f8f4e789361f 5 #include "cy_pdl.h"
reedas 1:f8f4e789361f 6 #include "cycfg_capsense.h"
reedas 1:f8f4e789361f 7 #include "cycfg.h"
reedas 1:f8f4e789361f 8 #include "PinDetect.h"
reedas 0:4ad2c16b6e43 9
reedas 0:4ad2c16b6e43 10 DigitalOut ledGreen(LED_GREEN);
reedas 0:4ad2c16b6e43 11 DigitalIn sw2(SWITCH2, PullUp);
reedas 0:4ad2c16b6e43 12 DigitalOut ledRed(LED_RED);
reedas 2:02954bc28fc5 13 DigitalOut userLed(LED4); /* Amber LED */
reedas 0:4ad2c16b6e43 14 DigitalOut ledBlue(LED_BLUE);
reedas 1:f8f4e789361f 15 DigitalOut ledBlue2(P13_4);
reedas 1:f8f4e789361f 16 DigitalOut ledGreen2(P13_3);
reedas 1:f8f4e789361f 17 DigitalOut ledRed2(P13_2);
reedas 2:02954bc28fc5 18 PwmOut myPwm(LED5); /* Red Ststus LED */
reedas 0:4ad2c16b6e43 19
reedas 1:f8f4e789361f 20 PinDetect pb2(P0_4);
reedas 0:4ad2c16b6e43 21
reedas 0:4ad2c16b6e43 22 /* Macros for switch press status */
reedas 0:4ad2c16b6e43 23 #define BTN_PRESSED (0u)
reedas 0:4ad2c16b6e43 24 #define BTN_RELEASED (1u)
reedas 0:4ad2c16b6e43 25
reedas 1:f8f4e789361f 26 /***************************************************************************
reedas 1:f8f4e789361f 27 * Global constants
reedas 1:f8f4e789361f 28 ***************************************************************************/
reedas 1:f8f4e789361f 29 #define SLIDER_NUM_TOUCH (1u) /* Number of touches on the slider */
reedas 2:02954bc28fc5 30 #define nLED_OFF (1u)
reedas 2:02954bc28fc5 31 #define nLED_ON (0u)
reedas 2:02954bc28fc5 32 #define LED_OFF (0u)
reedas 2:02954bc28fc5 33 #define LED_ON (1u)
reedas 1:f8f4e789361f 34 #define CAPSENSE_SCAN_PERIOD_MS (20u) /* milliseconds */
reedas 1:f8f4e789361f 35
reedas 1:f8f4e789361f 36
reedas 1:f8f4e789361f 37 /***************************************
reedas 1:f8f4e789361f 38 * Function Prototypes
reedas 1:f8f4e789361f 39 **************************************/
reedas 1:f8f4e789361f 40 void RunCapSenseScan(void);
reedas 1:f8f4e789361f 41 void InitTunerCommunication(void);
reedas 1:f8f4e789361f 42 void ProcessTouchStatus(void);
reedas 1:f8f4e789361f 43 void EZI2C_InterruptHandler(void);
reedas 1:f8f4e789361f 44 void CapSense_InterruptHandler(void);
reedas 1:f8f4e789361f 45 void CapSenseEndOfScanCallback(cy_stc_active_scan_sns_t * ptrActiveScan);
reedas 1:f8f4e789361f 46 void InitCapSenseClock(void);
reedas 2:02954bc28fc5 47 void LED_Init(void);
reedas 2:02954bc28fc5 48 void Display_Init(void);
reedas 2:02954bc28fc5 49 void CapSense_Init(void);
reedas 2:02954bc28fc5 50 void Button_Init(void);
reedas 0:4ad2c16b6e43 51
reedas 1:f8f4e789361f 52 /*******************************************************************************
reedas 1:f8f4e789361f 53 * Interrupt configuration
reedas 1:f8f4e789361f 54 *******************************************************************************/
reedas 2:02954bc28fc5 55 const cy_stc_sysint_t CapSense_ISR_cfg = {
reedas 1:f8f4e789361f 56 .intrSrc = CYBSP_CSD_IRQ,
reedas 1:f8f4e789361f 57 .intrPriority = 4u
reedas 1:f8f4e789361f 58 };
reedas 1:f8f4e789361f 59
reedas 1:f8f4e789361f 60 const cy_stc_sysint_t EZI2C_ISR_cfg = {
reedas 1:f8f4e789361f 61 .intrSrc = CYBSP_CSD_COMM_IRQ,
reedas 1:f8f4e789361f 62 .intrPriority = 3u
reedas 1:f8f4e789361f 63 };
reedas 1:f8f4e789361f 64
reedas 1:f8f4e789361f 65
reedas 1:f8f4e789361f 66 /*******************************************************************************
reedas 1:f8f4e789361f 67 * Global variables
reedas 1:f8f4e789361f 68 *******************************************************************************/
reedas 1:f8f4e789361f 69 //DigitalOut ledRed(LED_RED);
reedas 1:f8f4e789361f 70 Semaphore capsense_sem;
reedas 1:f8f4e789361f 71 EventQueue queue;
reedas 1:f8f4e789361f 72 cy_stc_scb_ezi2c_context_t EZI2C_context;
reedas 2:02954bc28fc5 73 uint32_t prevBtn0Status = 0u;
reedas 1:f8f4e789361f 74 uint32_t prevBtn1Status = 0u;
reedas 1:f8f4e789361f 75 uint32_t prevSliderPos = 0u;
reedas 1:f8f4e789361f 76 bool sw2Pressed = false;
reedas 1:f8f4e789361f 77 bool prevSw2Pressed = false;
reedas 2:02954bc28fc5 78 bool sw2ToggleStatus = false;
reedas 2:02954bc28fc5 79 bool btn0ToggleStatus = false;
reedas 2:02954bc28fc5 80 bool btn1ToggleStatus = false;
reedas 0:4ad2c16b6e43 81
reedas 0:4ad2c16b6e43 82
reedas 0:4ad2c16b6e43 83 /* External global references */
reedas 0:4ad2c16b6e43 84 //extern GUI_CONST_STORAGE GUI_BITMAP bmCypressLogo_1bpp;
reedas 0:4ad2c16b6e43 85
reedas 2:02954bc28fc5 86 extern GUI_CONST_STORAGE GUI_BITMAP bmExampleImage;
reedas 0:4ad2c16b6e43 87 extern GUI_CONST_STORAGE GUI_BITMAP bmCypressLogo;
reedas 0:4ad2c16b6e43 88
reedas 1:f8f4e789361f 89 // Callback routine is interrupt activated by a debounced pb1 hit
reedas 2:02954bc28fc5 90 void pb2_hit_callback (void)
reedas 2:02954bc28fc5 91 {
reedas 1:f8f4e789361f 92 // printf("Count is %d\n", ++countit);
reedas 1:f8f4e789361f 93 sw2Pressed = true;
reedas 2:02954bc28fc5 94 }
reedas 1:f8f4e789361f 95 // Callback routine is interrupt activated by a debounced pb1 hit
reedas 2:02954bc28fc5 96 void pb2_released_callback (void)
reedas 2:02954bc28fc5 97 {
reedas 1:f8f4e789361f 98 // printf("Count is %d\n", ++countit);
reedas 1:f8f4e789361f 99 sw2Pressed = false;
reedas 2:02954bc28fc5 100 }
reedas 0:4ad2c16b6e43 101 /*******************************************************************************
reedas 0:4ad2c16b6e43 102 * Function Name: bool IsBtnClicked
reedas 0:4ad2c16b6e43 103 ********************************************************************************
reedas 0:4ad2c16b6e43 104 *
reedas 0:4ad2c16b6e43 105 * Summary: This non-blocking function implements SW2 button click check.
reedas 0:4ad2c16b6e43 106 *
reedas 0:4ad2c16b6e43 107 * Parameters:
reedas 0:4ad2c16b6e43 108 * None
reedas 0:4ad2c16b6e43 109 *
reedas 0:4ad2c16b6e43 110 * Return:
reedas 0:4ad2c16b6e43 111 * Status of the SW2 button:
reedas 2:02954bc28fc5 112 * true when button was pressed and then released and
reedas 0:4ad2c16b6e43 113 * false in other cases
reedas 0:4ad2c16b6e43 114 *
reedas 2:02954bc28fc5 115 * This code is not used in this version of the program as PinDetect Library
reedas 2:02954bc28fc5 116 * is employed to debounce the switch.
reedas 2:02954bc28fc5 117 *
reedas 0:4ad2c16b6e43 118 *******************************************************************************/
reedas 2:02954bc28fc5 119 /*
reedas 2:02954bc28fc5 120 * bool IsBtnClicked(void)
reedas 2:02954bc28fc5 121 * {
reedas 2:02954bc28fc5 122 * int currBtnState;
reedas 2:02954bc28fc5 123 * static int prevBtnState = BTN_RELEASED;
reedas 2:02954bc28fc5 124 *
reedas 2:02954bc28fc5 125 * bool result = false;
reedas 2:02954bc28fc5 126 *
reedas 2:02954bc28fc5 127 * currBtnState = sw2;
reedas 2:02954bc28fc5 128 *
reedas 2:02954bc28fc5 129 * if((prevBtnState == BTN_RELEASED) && (currBtnState == BTN_PRESSED)) {
reedas 2:02954bc28fc5 130 * result = true;
reedas 2:02954bc28fc5 131 * }
reedas 2:02954bc28fc5 132 *
reedas 2:02954bc28fc5 133 * prevBtnState = currBtnState;
reedas 2:02954bc28fc5 134 *
reedas 2:02954bc28fc5 135 * wait_ms(5);
reedas 2:02954bc28fc5 136 *
reedas 2:02954bc28fc5 137 * return result;
reedas 2:02954bc28fc5 138 * }
reedas 2:02954bc28fc5 139 */
reedas 1:f8f4e789361f 140 /*****************************************************************************
reedas 1:f8f4e789361f 141 * Function Name: RunCapSenseScan()
reedas 1:f8f4e789361f 142 ******************************************************************************
reedas 1:f8f4e789361f 143 * Summary:
reedas 1:f8f4e789361f 144 * This function starts the scan, and processes the touch status. It is
reedas 2:02954bc28fc5 145 * periodically called by an event dispatcher.
reedas 1:f8f4e789361f 146 *
reedas 1:f8f4e789361f 147 *****************************************************************************/
reedas 1:f8f4e789361f 148 void RunCapSenseScan(void)
reedas 1:f8f4e789361f 149 {
reedas 1:f8f4e789361f 150 Cy_CapSense_ScanAllWidgets(&cy_capsense_context);
reedas 2:02954bc28fc5 151 capsense_sem.acquire();
reedas 1:f8f4e789361f 152 Cy_CapSense_ProcessAllWidgets(&cy_capsense_context);
reedas 1:f8f4e789361f 153 Cy_CapSense_RunTuner(&cy_capsense_context);
reedas 2:02954bc28fc5 154 ProcessTouchStatus();
reedas 1:f8f4e789361f 155 }
reedas 1:f8f4e789361f 156
reedas 0:4ad2c16b6e43 157
reedas 0:4ad2c16b6e43 158 /*******************************************************************************
reedas 1:f8f4e789361f 159 * Function Name: InitTunerCommunication
reedas 0:4ad2c16b6e43 160 ********************************************************************************
reedas 0:4ad2c16b6e43 161 *
reedas 1:f8f4e789361f 162 * Summary:
reedas 1:f8f4e789361f 163 * This function performs the following functions:
reedas 1:f8f4e789361f 164 * - Initializes SCB block for operation in EZI2C mode
reedas 1:f8f4e789361f 165 * - Configures EZI2C pins
reedas 1:f8f4e789361f 166 * - Configures EZI2C clock
reedas 1:f8f4e789361f 167 * - Sets communication data buffer to CapSense data structure
reedas 0:4ad2c16b6e43 168 *
reedas 0:4ad2c16b6e43 169 *******************************************************************************/
reedas 1:f8f4e789361f 170 void InitTunerCommunication(void)
reedas 0:4ad2c16b6e43 171 {
reedas 1:f8f4e789361f 172 /* Initialize EZI2C pins */
reedas 1:f8f4e789361f 173 Cy_GPIO_Pin_Init(CYBSP_EZI2C_SCL_PORT, CYBSP_EZI2C_SCL_PIN, &CYBSP_EZI2C_SCL_config);
reedas 1:f8f4e789361f 174 Cy_GPIO_Pin_Init(CYBSP_EZI2C_SDA_PORT, CYBSP_EZI2C_SDA_PIN, &CYBSP_EZI2C_SDA_config);
reedas 2:02954bc28fc5 175
reedas 1:f8f4e789361f 176 /* Configure the peripheral clock for EZI2C */
reedas 1:f8f4e789361f 177 Cy_SysClk_PeriphAssignDivider(PCLK_SCB3_CLOCK, CY_SYSCLK_DIV_8_BIT, 1U);
reedas 1:f8f4e789361f 178 Cy_SysClk_PeriphDisableDivider(CY_SYSCLK_DIV_8_BIT, 1U);
reedas 1:f8f4e789361f 179 Cy_SysClk_PeriphSetDivider(CY_SYSCLK_DIV_8_BIT, 1U, 7U);
reedas 1:f8f4e789361f 180 Cy_SysClk_PeriphEnableDivider(CY_SYSCLK_DIV_8_BIT, 1U);
reedas 2:02954bc28fc5 181
reedas 1:f8f4e789361f 182 Cy_SCB_EZI2C_Init(CYBSP_CSD_COMM_HW, &CYBSP_CSD_COMM_config, &EZI2C_context);
reedas 1:f8f4e789361f 183
reedas 1:f8f4e789361f 184 /* Initialize and enable EZI2C interrupts */
reedas 1:f8f4e789361f 185 Cy_SysInt_Init(&EZI2C_ISR_cfg, &EZI2C_InterruptHandler);
reedas 1:f8f4e789361f 186 NVIC_EnableIRQ(EZI2C_ISR_cfg.intrSrc);
reedas 1:f8f4e789361f 187
reedas 1:f8f4e789361f 188 /* Set up communication data buffer to CapSense data structure to be exposed
reedas 1:f8f4e789361f 189 * to I2C master at primary slave address request.
reedas 1:f8f4e789361f 190 */
reedas 1:f8f4e789361f 191 Cy_SCB_EZI2C_SetBuffer1(CYBSP_CSD_COMM_HW, (uint8 *)&cy_capsense_tuner,
reedas 2:02954bc28fc5 192 sizeof(cy_capsense_tuner), sizeof(cy_capsense_tuner), &EZI2C_context);
reedas 1:f8f4e789361f 193
reedas 1:f8f4e789361f 194 /* Enable EZI2C block */
reedas 1:f8f4e789361f 195 Cy_SCB_EZI2C_Enable(CYBSP_CSD_COMM_HW);
reedas 1:f8f4e789361f 196 }
reedas 1:f8f4e789361f 197
reedas 0:4ad2c16b6e43 198
reedas 1:f8f4e789361f 199 /*******************************************************************************
reedas 1:f8f4e789361f 200 * Function Name: ProcessTouchStatus
reedas 1:f8f4e789361f 201 ********************************************************************************
reedas 1:f8f4e789361f 202 *
reedas 1:f8f4e789361f 203 * Summary:
reedas 1:f8f4e789361f 204 * Controls the LED status according to the status of CapSense widgets and
reedas 1:f8f4e789361f 205 * prints the status to serial terminal.
reedas 1:f8f4e789361f 206 *
reedas 1:f8f4e789361f 207 *******************************************************************************/
reedas 1:f8f4e789361f 208 void ProcessTouchStatus(void)
reedas 1:f8f4e789361f 209 {
reedas 2:02954bc28fc5 210 uint32_t currSliderPos;
reedas 2:02954bc28fc5 211 uint32_t currBtn0Status = Cy_CapSense_IsSensorActive(CY_CAPSENSE_BUTTON0_WDGT_ID, CY_CAPSENSE_BUTTON0_SNS0_ID, &cy_capsense_context);
reedas 2:02954bc28fc5 212 uint32_t currBtn1Status = Cy_CapSense_IsSensorActive(CY_CAPSENSE_BUTTON1_WDGT_ID, CY_CAPSENSE_BUTTON1_SNS0_ID, &cy_capsense_context);
reedas 1:f8f4e789361f 213 cy_stc_capsense_touch_t *sldrTouch = Cy_CapSense_GetTouchInfo(CY_CAPSENSE_LINEARSLIDER0_WDGT_ID, &cy_capsense_context);
reedas 1:f8f4e789361f 214 char outputString[80];
reedas 2:02954bc28fc5 215 if(currBtn0Status != prevBtn0Status) {
reedas 1:f8f4e789361f 216 printf("Button_0 status: %u\r\n", currBtn0Status);
reedas 1:f8f4e789361f 217 sprintf(outputString," Button_0 status: %u ", currBtn0Status);
reedas 1:f8f4e789361f 218 GUI_SetTextAlign(GUI_TA_HCENTER);
reedas 1:f8f4e789361f 219 GUI_DispStringAt(outputString, 160, 60);
reedas 2:02954bc28fc5 220 if (currBtn0Status) {
reedas 2:02954bc28fc5 221 if(btn0ToggleStatus) {
reedas 2:02954bc28fc5 222 btn0ToggleStatus = false;
reedas 2:02954bc28fc5 223 /* Turn The Blue RGB LED off */
reedas 2:02954bc28fc5 224 ledBlue2 = LED_OFF;
reedas 2:02954bc28fc5 225 /* turn virtual Blue led off */
reedas 2:02954bc28fc5 226 GUI_SetColor(50);
reedas 2:02954bc28fc5 227 GUI_FillCircle(240,70,8);
reedas 2:02954bc28fc5 228 } else {
reedas 2:02954bc28fc5 229 btn0ToggleStatus = true;
reedas 2:02954bc28fc5 230 /* Turn The Blue RGB LED on */
reedas 2:02954bc28fc5 231 ledBlue2 = LED_ON;
reedas 2:02954bc28fc5 232 /* turn virtual led on */
reedas 2:02954bc28fc5 233 GUI_SetColor(255);
reedas 2:02954bc28fc5 234 GUI_FillCircle(240,70,8);
reedas 2:02954bc28fc5 235 }
reedas 2:02954bc28fc5 236 }
reedas 2:02954bc28fc5 237 GUI_SetColor(GUI_WHITE);
reedas 2:02954bc28fc5 238
reedas 1:f8f4e789361f 239 prevBtn0Status = currBtn0Status;
reedas 1:f8f4e789361f 240 }
reedas 2:02954bc28fc5 241
reedas 2:02954bc28fc5 242 if(currBtn1Status != prevBtn1Status) {
reedas 1:f8f4e789361f 243 printf("Button_1 status: %u\r\n", currBtn1Status);
reedas 1:f8f4e789361f 244 sprintf(outputString," Button_1 status: %u ", currBtn1Status);
reedas 1:f8f4e789361f 245 GUI_SetTextAlign(GUI_TA_HCENTER);
reedas 1:f8f4e789361f 246 GUI_DispStringAt(outputString, 160, 80);
reedas 2:02954bc28fc5 247 btn1ToggleStatus = !btn1ToggleStatus;
reedas 2:02954bc28fc5 248 if (currBtn1Status) {
reedas 2:02954bc28fc5 249 if(btn1ToggleStatus) {
reedas 2:02954bc28fc5 250 btn1ToggleStatus = false;
reedas 2:02954bc28fc5 251 /* Turn The Red RGB LED off */
reedas 2:02954bc28fc5 252 ledRed2 = LED_OFF;
reedas 2:02954bc28fc5 253 /* turn virtual led off */
reedas 2:02954bc28fc5 254 GUI_SetColor(0x320000);
reedas 2:02954bc28fc5 255 GUI_FillCircle(240,90,8);
reedas 2:02954bc28fc5 256 } else {
reedas 2:02954bc28fc5 257 btn1ToggleStatus = true;
reedas 2:02954bc28fc5 258 /* Turn The Red RGB LED on */
reedas 2:02954bc28fc5 259 ledRed2 = LED_ON;
reedas 2:02954bc28fc5 260 /* turn virtual led on */
reedas 2:02954bc28fc5 261 GUI_SetColor(0xff0000);
reedas 2:02954bc28fc5 262 GUI_FillCircle(240,90,8);
reedas 2:02954bc28fc5 263 }
reedas 2:02954bc28fc5 264 }
reedas 2:02954bc28fc5 265 GUI_SetColor(GUI_WHITE);
reedas 1:f8f4e789361f 266 prevBtn1Status = currBtn1Status;
reedas 2:02954bc28fc5 267 }
reedas 1:f8f4e789361f 268 if(sw2Pressed != prevSw2Pressed) {
reedas 2:02954bc28fc5 269 printf("Button sw2 status: %u\r\n", sw2Pressed);
reedas 1:f8f4e789361f 270 sprintf(outputString," Button_2 status: %u ", sw2Pressed);
reedas 1:f8f4e789361f 271 GUI_SetTextAlign(GUI_TA_HCENTER);
reedas 1:f8f4e789361f 272 GUI_DispStringAt(outputString, 160, 100);
reedas 2:02954bc28fc5 273 sw2ToggleStatus = !sw2ToggleStatus;
reedas 2:02954bc28fc5 274 if (sw2Pressed) {
reedas 2:02954bc28fc5 275 if(sw2ToggleStatus) {
reedas 2:02954bc28fc5 276 sw2ToggleStatus = false;
reedas 2:02954bc28fc5 277 /* Turn The Green RGB LED off */
reedas 2:02954bc28fc5 278 ledGreen2 = LED_OFF;
reedas 2:02954bc28fc5 279 /* turn virtual Green led off */
reedas 2:02954bc28fc5 280 GUI_SetColor(0x3200);
reedas 2:02954bc28fc5 281 GUI_FillCircle(240,110,8);
reedas 2:02954bc28fc5 282 } else {
reedas 2:02954bc28fc5 283 sw2ToggleStatus = true;
reedas 2:02954bc28fc5 284 /* Turn The Green RGB LED on */
reedas 2:02954bc28fc5 285 ledGreen2 = LED_ON;
reedas 2:02954bc28fc5 286 /* turn virtual Green led on */
reedas 2:02954bc28fc5 287 GUI_SetColor(0xff00);
reedas 2:02954bc28fc5 288 GUI_FillCircle(240,110,8);
reedas 2:02954bc28fc5 289 }
reedas 2:02954bc28fc5 290 }
reedas 2:02954bc28fc5 291 GUI_SetColor(GUI_WHITE);
reedas 1:f8f4e789361f 292 prevSw2Pressed = sw2Pressed;
reedas 1:f8f4e789361f 293 }
reedas 2:02954bc28fc5 294 if (sldrTouch->numPosition == SLIDER_NUM_TOUCH) {
reedas 1:f8f4e789361f 295 currSliderPos = sldrTouch->ptrPosition->x;
reedas 0:4ad2c16b6e43 296
reedas 2:02954bc28fc5 297 if(currSliderPos != prevSliderPos) {
reedas 1:f8f4e789361f 298 printf("Slider position: %u\r\n", currSliderPos);
reedas 1:f8f4e789361f 299 sprintf(outputString," Slider position: %u ", currSliderPos);
reedas 1:f8f4e789361f 300 GUI_SetTextAlign(GUI_TA_HCENTER);
reedas 1:f8f4e789361f 301 GUI_DispStringAt(outputString, 160, 120);
reedas 2:02954bc28fc5 302 myPwm.pulsewidth_ms((100-currSliderPos)/10);
reedas 2:02954bc28fc5 303 GUI_SetColor(GUI_BLACK);
reedas 2:02954bc28fc5 304 GUI_SetPenSize(10);
reedas 2:02954bc28fc5 305 GUI_DrawLine((61 + (currSliderPos * 2)), 150, 260, 150);
reedas 2:02954bc28fc5 306 GUI_SetColor(GUI_MAGENTA);
reedas 2:02954bc28fc5 307 GUI_SetPenSize(10);
reedas 2:02954bc28fc5 308 GUI_DrawLine(60, 150, (60 + (currSliderPos * 2)), 150);
reedas 2:02954bc28fc5 309 GUI_SetColor(GUI_WHITE);
reedas 1:f8f4e789361f 310 prevSliderPos = currSliderPos;
reedas 0:4ad2c16b6e43 311 }
reedas 0:4ad2c16b6e43 312 }
reedas 2:02954bc28fc5 313 /* flash a LED when a key press is detected */
reedas 2:02954bc28fc5 314 userLed = (sw2Pressed || currBtn0Status || currBtn1Status || (sldrTouch->numPosition == SLIDER_NUM_TOUCH)) ? nLED_ON : nLED_OFF;
reedas 0:4ad2c16b6e43 315 }
reedas 0:4ad2c16b6e43 316
reedas 0:4ad2c16b6e43 317
reedas 1:f8f4e789361f 318 /*******************************************************************************
reedas 1:f8f4e789361f 319 * Function Name: EZI2C_InterruptHandler
reedas 1:f8f4e789361f 320 ********************************************************************************
reedas 1:f8f4e789361f 321 * Summary:
reedas 2:02954bc28fc5 322 * Wrapper function for handling interrupts from EZI2C block.
reedas 1:f8f4e789361f 323 *
reedas 1:f8f4e789361f 324 *******************************************************************************/
reedas 1:f8f4e789361f 325 void EZI2C_InterruptHandler(void)
reedas 1:f8f4e789361f 326 {
reedas 1:f8f4e789361f 327 Cy_SCB_EZI2C_Interrupt(CYBSP_CSD_COMM_HW, &EZI2C_context);
reedas 1:f8f4e789361f 328 }
reedas 1:f8f4e789361f 329
reedas 1:f8f4e789361f 330 /*****************************************************************************
reedas 1:f8f4e789361f 331 * Function Name: CapSense_InterruptHandler()
reedas 1:f8f4e789361f 332 ******************************************************************************
reedas 1:f8f4e789361f 333 * Summary:
reedas 1:f8f4e789361f 334 * Wrapper function for handling interrupts from CSD block.
reedas 1:f8f4e789361f 335 *
reedas 1:f8f4e789361f 336 *****************************************************************************/
reedas 1:f8f4e789361f 337 void CapSense_InterruptHandler(void)
reedas 1:f8f4e789361f 338 {
reedas 1:f8f4e789361f 339 Cy_CapSense_InterruptHandler(CYBSP_CSD_HW, &cy_capsense_context);
reedas 1:f8f4e789361f 340 }
reedas 1:f8f4e789361f 341
reedas 1:f8f4e789361f 342
reedas 1:f8f4e789361f 343 /*****************************************************************************
reedas 1:f8f4e789361f 344 * Function Name: CapSenseEndOfScanCallback()
reedas 1:f8f4e789361f 345 ******************************************************************************
reedas 1:f8f4e789361f 346 * Summary:
reedas 1:f8f4e789361f 347 * This function releases a semaphore to indicate end of a CapSense scan.
reedas 1:f8f4e789361f 348 *
reedas 1:f8f4e789361f 349 * Parameters:
reedas 1:f8f4e789361f 350 * cy_stc_active_scan_sns_t* : pointer to active sensor details.
reedas 1:f8f4e789361f 351 *
reedas 1:f8f4e789361f 352 *****************************************************************************/
reedas 1:f8f4e789361f 353 void CapSenseEndOfScanCallback(cy_stc_active_scan_sns_t * ptrActiveScan)
reedas 1:f8f4e789361f 354 {
reedas 1:f8f4e789361f 355 capsense_sem.release();
reedas 1:f8f4e789361f 356 }
reedas 1:f8f4e789361f 357
reedas 1:f8f4e789361f 358
reedas 1:f8f4e789361f 359 /*****************************************************************************
reedas 1:f8f4e789361f 360 * Function Name: InitCapSenseClock()
reedas 1:f8f4e789361f 361 ******************************************************************************
reedas 1:f8f4e789361f 362 * Summary:
reedas 2:02954bc28fc5 363 * This function configures the peripheral clock for CapSense.
reedas 1:f8f4e789361f 364 *
reedas 1:f8f4e789361f 365 *****************************************************************************/
reedas 1:f8f4e789361f 366 void InitCapSenseClock(void)
reedas 1:f8f4e789361f 367 {
reedas 1:f8f4e789361f 368 Cy_SysClk_PeriphAssignDivider(PCLK_CSD_CLOCK, CYBSP_CSD_CLK_DIV_HW, CYBSP_CSD_CLK_DIV_NUM);
reedas 1:f8f4e789361f 369 Cy_SysClk_PeriphDisableDivider(CYBSP_CSD_CLK_DIV_HW, CYBSP_CSD_CLK_DIV_NUM);
reedas 1:f8f4e789361f 370 Cy_SysClk_PeriphSetDivider(CYBSP_CSD_CLK_DIV_HW, CYBSP_CSD_CLK_DIV_NUM, 0u);
reedas 1:f8f4e789361f 371 Cy_SysClk_PeriphEnableDivider(CYBSP_CSD_CLK_DIV_HW, CYBSP_CSD_CLK_DIV_NUM);
reedas 1:f8f4e789361f 372 }
reedas 2:02954bc28fc5 373 void LED_Init(void)
reedas 1:f8f4e789361f 374 {
reedas 2:02954bc28fc5 375 /* Turn off all LEDs */
reedas 2:02954bc28fc5 376 ledGreen = nLED_OFF;
reedas 2:02954bc28fc5 377 ledRed = nLED_OFF;
reedas 2:02954bc28fc5 378 ledBlue = nLED_OFF;
reedas 2:02954bc28fc5 379 userLed = nLED_OFF;
reedas 2:02954bc28fc5 380 ledGreen2 = LED_OFF; /* 1 for on 0 for off */
reedas 2:02954bc28fc5 381 ledRed2 = LED_OFF;
reedas 2:02954bc28fc5 382 ledBlue2 = LED_OFF;
reedas 2:02954bc28fc5 383
reedas 2:02954bc28fc5 384 /* Setup pwm output initially at 50% */
reedas 2:02954bc28fc5 385 myPwm.period_ms(10);
reedas 2:02954bc28fc5 386 myPwm.pulsewidth_ms(5);
reedas 2:02954bc28fc5 387
reedas 2:02954bc28fc5 388 }
reedas 2:02954bc28fc5 389
reedas 2:02954bc28fc5 390 void Display_Init(void)
reedas 2:02954bc28fc5 391 {
reedas 2:02954bc28fc5 392
reedas 2:02954bc28fc5 393 /* memory buffer for sprintf */
reedas 1:f8f4e789361f 394 char outputString[80];
reedas 2:02954bc28fc5 395
reedas 1:f8f4e789361f 396 /* Set font size, foreground and background Colours */
reedas 1:f8f4e789361f 397 GUI_SetFont(GUI_FONT_16B_1);
reedas 1:f8f4e789361f 398 GUI_SetColor(GUI_WHITE);
reedas 1:f8f4e789361f 399 GUI_SetBkColor(GUI_BLACK);
reedas 1:f8f4e789361f 400
reedas 2:02954bc28fc5 401 /* Clear screen and print splash screen */
reedas 1:f8f4e789361f 402 GUI_Clear();
reedas 1:f8f4e789361f 403 GUI_SetTextAlign(GUI_TA_HCENTER);
reedas 1:f8f4e789361f 404 GUI_DispStringAt("Capsense Demo", 160, 20);
reedas 1:f8f4e789361f 405 printf("\r\nApplication has started. Touch any CapSense button or slider.\r\n");
reedas 1:f8f4e789361f 406 sprintf(outputString,"\r\nApplication has started.\r\n Touch any CapSense button or slider.");
reedas 1:f8f4e789361f 407 GUI_SetTextAlign(GUI_TA_HCENTER);
reedas 1:f8f4e789361f 408 GUI_DispStringAt(outputString, 160, 180);
reedas 1:f8f4e789361f 409 wait(0.10);
reedas 2:02954bc28fc5 410 }
reedas 2:02954bc28fc5 411
reedas 2:02954bc28fc5 412 void CapSense_Init(void)
reedas 2:02954bc28fc5 413 {
reedas 2:02954bc28fc5 414
reedas 2:02954bc28fc5 415 /* memory buffer for sprintf */
reedas 2:02954bc28fc5 416 char outputString[80];
reedas 2:02954bc28fc5 417
reedas 2:02954bc28fc5 418 /* Configure AMUX bus for CapSense */
reedas 1:f8f4e789361f 419 init_cycfg_routing();
reedas 2:02954bc28fc5 420
reedas 1:f8f4e789361f 421 /* Configure PERI clocks for CapSense */
reedas 2:02954bc28fc5 422 InitCapSenseClock();
reedas 2:02954bc28fc5 423
reedas 1:f8f4e789361f 424 InitTunerCommunication();
reedas 2:02954bc28fc5 425
reedas 1:f8f4e789361f 426 /* Initialize the CSD HW block to the default state. */
reedas 1:f8f4e789361f 427 cy_status status = Cy_CapSense_Init(&cy_capsense_context);
reedas 2:02954bc28fc5 428 if(CY_RET_SUCCESS != status) {
reedas 1:f8f4e789361f 429 printf("CapSense initialization failed. Status code: %u\r\n", status);
reedas 1:f8f4e789361f 430 sprintf(outputString,"CapSense initialization failed. Status code: %u", status);
reedas 1:f8f4e789361f 431 GUI_SetTextAlign(GUI_TA_HCENTER);
reedas 1:f8f4e789361f 432 GUI_DispStringAt(outputString, 160, 40);
reedas 1:f8f4e789361f 433 wait(osWaitForever);
reedas 1:f8f4e789361f 434 }
reedas 1:f8f4e789361f 435 /* Initialize CapSense interrupt */
reedas 1:f8f4e789361f 436 Cy_SysInt_Init(&CapSense_ISR_cfg, &CapSense_InterruptHandler);
reedas 1:f8f4e789361f 437 NVIC_ClearPendingIRQ(CapSense_ISR_cfg.intrSrc);
reedas 1:f8f4e789361f 438 NVIC_EnableIRQ(CapSense_ISR_cfg.intrSrc);
reedas 1:f8f4e789361f 439
reedas 1:f8f4e789361f 440 /* Initialize the CapSense firmware modules. */
reedas 1:f8f4e789361f 441 Cy_CapSense_Enable(&cy_capsense_context);
reedas 1:f8f4e789361f 442 Cy_CapSense_RegisterCallback(CY_CAPSENSE_END_OF_SCAN_E, CapSenseEndOfScanCallback, &cy_capsense_context);
reedas 2:02954bc28fc5 443
reedas 2:02954bc28fc5 444 }
reedas 1:f8f4e789361f 445
reedas 2:02954bc28fc5 446 /* Setup debounced mechanical buttons and callbacks*/
reedas 2:02954bc28fc5 447 void Button_Init(void)
reedas 2:02954bc28fc5 448 {
reedas 1:f8f4e789361f 449
reedas 2:02954bc28fc5 450 /* Use internal pullups for pushbutton */
reedas 2:02954bc28fc5 451 pb2.mode(PullUp);
reedas 1:f8f4e789361f 452 // pb2.mode(PullUp);
reedas 1:f8f4e789361f 453 // Delay for initial pullup to take effect
reedas 1:f8f4e789361f 454 wait(.01);
reedas 1:f8f4e789361f 455 // Setup Interrupt callback functions for a pb hit
reedas 1:f8f4e789361f 456 pb2.attach_deasserted(&pb2_hit_callback);
reedas 1:f8f4e789361f 457 // pb2.attach_deasserted(&pb2_hit_callback);
reedas 1:f8f4e789361f 458 // Start sampling pb inputs using interrupts
reedas 1:f8f4e789361f 459 pb2.setSampleFrequency();
reedas 1:f8f4e789361f 460
reedas 1:f8f4e789361f 461 pb2.attach_asserted( &pb2_released_callback );
reedas 1:f8f4e789361f 462 }
reedas 1:f8f4e789361f 463
reedas 2:02954bc28fc5 464 /*****************************************************************************
reedas 2:02954bc28fc5 465 * Function Name: main()
reedas 2:02954bc28fc5 466 ******************************************************************************
reedas 2:02954bc28fc5 467 * Summary:
reedas 2:02954bc28fc5 468 * Main function that starts a thread for CapSense scan, initialises the
reedas 2:02954bc28fc5 469 * tft screen, debounce buttons, turns off LEDs and enters a forever
reedas 2:02954bc28fc5 470 * wait state.
reedas 2:02954bc28fc5 471 *
reedas 2:02954bc28fc5 472 *****************************************************************************/
reedas 2:02954bc28fc5 473 int main(void)
reedas 2:02954bc28fc5 474 {
reedas 2:02954bc28fc5 475
reedas 2:02954bc28fc5 476 /* Initialise EmWin driver*/
reedas 2:02954bc28fc5 477 GUI_Init();
reedas 2:02954bc28fc5 478
reedas 2:02954bc28fc5 479 /* Initialise display */
reedas 2:02954bc28fc5 480 Display_Init();
reedas 2:02954bc28fc5 481
reedas 2:02954bc28fc5 482 /* Set up CapSense paramteters */
reedas 2:02954bc28fc5 483 CapSense_Init();
reedas 2:02954bc28fc5 484
reedas 2:02954bc28fc5 485 /* Create a thread to run CapSense scan periodically using an event queue
reedas 2:02954bc28fc5 486 * dispatcher.
reedas 2:02954bc28fc5 487 */
reedas 2:02954bc28fc5 488 Thread thread(osPriorityNormal, OS_STACK_SIZE, NULL, "CapSense Scan Thread");
reedas 2:02954bc28fc5 489 thread.start(callback(&queue, &EventQueue::dispatch_forever));
reedas 2:02954bc28fc5 490 queue.call_every(CAPSENSE_SCAN_PERIOD_MS, RunCapSenseScan);
reedas 2:02954bc28fc5 491
reedas 2:02954bc28fc5 492 /* Initiate scan immediately since the first call of RunCapSenseScan()
reedas 2:02954bc28fc5 493 * happens CAPSENSE_SCAN_PERIOD_MS after the event queue dispatcher has
reedas 2:02954bc28fc5 494 * started.
reedas 2:02954bc28fc5 495 */
reedas 2:02954bc28fc5 496 Cy_CapSense_ScanAllWidgets(&cy_capsense_context);
reedas 2:02954bc28fc5 497
reedas 2:02954bc28fc5 498 /* Setup debounced mechanical buttons and callbacks*/
reedas 2:02954bc28fc5 499 Button_Init();
reedas 2:02954bc28fc5 500
reedas 2:02954bc28fc5 501 /* Turn off all LEDs, set up pwm drive */
reedas 2:02954bc28fc5 502 LED_Init();
reedas 2:02954bc28fc5 503
reedas 2:02954bc28fc5 504 /* everything is started so goto sleep forever while events control the hardware */
reedas 2:02954bc28fc5 505 wait(osWaitForever);
reedas 2:02954bc28fc5 506
reedas 2:02954bc28fc5 507 }
reedas 2:02954bc28fc5 508
reedas 2:02954bc28fc5 509