First commit

Supppper yucky code, but it works nonetheless
Im kinda new to C++ so, Im learning the in's and out's of it, and it may or may not get rewritten to do things the right way (Glancing at tap, and app implementation)

RP2040-Touch-LCD-1.28/CST816S.cpp

@@ -0,0 +1,133 @@
+/*****************************************************************************
+ * | File      	:   CST816S.c
+ * | Author      :   Waveshare team
+ * | Function    :   Hardware underlying interface
+ * | Info        :
+ *                Used to shield the underlying layers of each master
+ *                and enhance portability
+ *----------------
+ * |	This version:   V1.0
+ * | Date        :   2022-12-02
+ * | Info        :   Basic version
+ *
+ ******************************************************************************/
+#include "CST816S.h"
+CST816S Touch_CTS816;
+
+void CST816S_I2C_Write(uint8_t reg, uint8_t value)
+{
+    DEV_I2C_Write_Byte( CST816_ADDR, reg, value);
+}
+uint8_t CST816S_I2C_Read(uint8_t reg)
+{
+    uint8_t res;
+    res = DEV_I2C_Read_Byte(CST816_ADDR, reg);
+    return res;
+}
+
+uint8_t CST816S_WhoAmI()
+{
+    if (CST816S_I2C_Read(CST816_ChipID) == 0xB5)
+        return true;
+    else
+        return false;
+}
+
+void CST816S_Reset()
+{
+    DEV_Digital_Write(Touch_RST_PIN, 0);
+    DEV_Delay_ms(100);
+    DEV_Digital_Write(Touch_RST_PIN, 1);
+    DEV_Delay_ms(100);
+}
+
+uint8_t CST816S_Read_Revision()
+{
+    return CST816S_I2C_Read(CST816_FwVersion);
+}
+
+void CST816S_Wake_up()
+{
+    DEV_Digital_Write(Touch_RST_PIN, 0);
+    DEV_Delay_ms(10);
+    DEV_Digital_Write(Touch_RST_PIN, 1);
+    DEV_Delay_ms(50);
+    CST816S_I2C_Write(CST816_DisAutoSleep, 0x01);
+}
+
+void CST816S_Stop_Sleep()
+{
+    CST816S_I2C_Write(CST816_DisAutoSleep, 0x01);
+}
+
+void CST816S_Set_Mode(uint8_t mode)
+{
+    if (mode == CST816S_Point_Mode)
+    {
+        // 
+        CST816S_I2C_Write(CST816_IrqCtl, 0x41);
+
+    }
+    else if (mode == CST816S_Gesture_Mode)
+    {
+        CST816S_I2C_Write(CST816_IrqCtl, 0X11);
+        CST816S_I2C_Write(CST816_MotionMask, 0x01);
+    }
+    else
+    {
+        CST816S_I2C_Write(CST816_IrqCtl, 0X71);
+    }
+
+}
+
+
+
+uint8_t CST816S_init(uint8_t mode)
+{
+    uint8_t bRet, Rev;
+    CST816S_Reset();
+
+    bRet = CST816S_WhoAmI();
+    if (bRet)
+    {
+        printf("Success:Detected CST816T.\r\n");
+        Rev = CST816S_Read_Revision();
+        printf("CST816T Revision = %d\r\n", Rev);
+        CST816S_Stop_Sleep();
+    }
+    else
+    {
+        printf("Error: Not Detected CST816T.\r\n");
+        return false;
+    }
+
+    CST816S_Set_Mode(mode);
+    Touch_CTS816.x_point = 0;
+    Touch_CTS816.y_point = 0;
+    CST816S_I2C_Write(CST816_IrqPluseWidth, 0x01);
+    CST816S_I2C_Write(CST816_NorScanPer, 0x01);
+
+    Touch_CTS816.mode = mode;
+
+    return true;
+}
+
+CST816S CST816S_Get_Point()
+{
+    uint8_t x_point_h, x_point_l, y_point_h, y_point_l;
+    // CST816S_Wake_up();
+    x_point_h = CST816S_I2C_Read(CST816_XposH);
+    x_point_l = CST816S_I2C_Read(CST816_XposL);
+    y_point_h = CST816S_I2C_Read(CST816_YposH);
+    y_point_l = CST816S_I2C_Read(CST816_YposL);
+    Touch_CTS816.x_point = ((x_point_h & 0x0f) << 8) + x_point_l;
+    Touch_CTS816.y_point = ((y_point_h & 0x0f) << 8) + y_point_l;
+
+    return Touch_CTS816;
+}
+uint8_t CST816S_Get_Gesture(void)
+{
+    uint8_t gesture;
+    gesture=CST816S_I2C_Read(CST816_GestureID);
+    return gesture;
+}

RP2040-Touch-LCD-1.28/CST816S.h

@@ -0,0 +1,98 @@
+/*****************************************************************************
+ * | File      	:   CST816S.h
+ * | Author      :   Waveshare team
+ * | Function    :   Hardware underlying interface
+ * | Info        :
+ *                Used to shield the underlying layers of each master
+ *                and enhance portability
+ *----------------
+ * |	This version:   V1.0
+ * | Date        :   2022-12-02
+ * | Info        :   Basic version
+ *
+ ******************************************************************************/
+#ifndef __CST816S_H
+#define __CST816S_H
+#include "DEV_Config.h"
+#include <stdlib.h> //itoa()
+#include <stdio.h>
+
+#define CST816_ADDR (0x15)
+
+typedef enum
+{
+
+	CST816_GestureID = 0x01,
+	CST816_FingerNum,
+	CST816_XposH,
+	CST816_XposL,
+	CST816_YposH,
+	CST816_YposL,
+
+	CST816_ChipID = 0xA7,
+	CST816_ProjID,
+	CST816_FwVersion,
+	CST816_MotionMask,
+
+	CST816_BPC0H = 0xB0,
+	CST816_BPC0L,
+	CST816_BPC1H,
+	CST816_BPC1L,
+
+	CST816_IrqPluseWidth = 0xED,
+	CST816_NorScanPer,
+	CST816_MotionSlAngle,
+	CST816_LpScanRaw1H =0XF0,
+	CST816_LpScanRaw1L,
+	CST816_LpScanRaw2H,
+	CST816_LpScanRaw2L,
+	CST816_LpAutoWakeTime,
+	CST816_LpScanTH,
+	CST816_LpScanWin,
+	CST816_LpScanFreq,
+	CST816_LpScanIdac,
+	CST816_AutoSleepTime,
+	CST816_IrqCtl,
+	CST816_AutoReset,
+	CST816_LongPressTime,
+	CST816_IOCtl,
+	CST816_DisAutoSleep
+} CST816S_Register;
+
+/**
+ * Whether the graphic is filled
+ **/
+typedef enum
+{
+	CST816S_Point_Mode = 1,
+	CST816S_Gesture_Mode,
+	CST816S_ALL_Mode,
+} CST816S_Mode;
+
+typedef enum
+{
+	CST816S_Gesture_None = 0,
+	CST816S_Gesture_Up,
+	CST816S_Gesture_Down,
+	CST816S_Gesture_Left,
+	CST816S_Gesture_Right,
+	CST816S_Gesture_Click,
+	CST816S_Gesture_Double_Click = 0x0b,
+	CST816S_Gesture_Long_Press=0x0c,
+} CST816S_Gesture;
+
+struct CST816S
+{
+	uint16_t x_point;
+	uint16_t y_point;
+	uint8_t Gesture;
+	uint8_t mode;
+} ;
+
+extern CST816S Touch_CTS816;
+
+uint8_t CST816S_init(uint8_t mode);
+CST816S CST816S_Get_Point();
+uint8_t CST816S_Get_Gesture(void);
+
+#endif