Update CSTxxx Driver

lewisxhe · Sep 21, 2023 · 87011e4 · 87011e4
1 parent c3b24f7
commit 87011e4
Show file tree

Hide file tree

Showing 4 changed files with 210 additions and 58 deletions.
diff --git a/examples/TouchDrv_CSTxxx_GetPoint/TouchDrv_CSTxxx_GetPoint.ino b/examples/TouchDrv_CSTxxx_GetPoint/TouchDrv_CSTxxx_GetPoint.ino
@@ -51,6 +51,26 @@
 TouchDrvCSTXXX touch;
 int16_t x[5], y[5];
 
+void scanDevices(void)
+{
+    byte error, address;
+    int nDevices = 0;
+    Serial.println("Scanning for I2C devices ...");
+    for (address = 0x01; address < 0x7f; address++) {
+        Wire.beginTransmission(address);
+        error = Wire.endTransmission();
+        if (error == 0) {
+            Serial.printf("I2C device found at address 0x%02X\n", address);
+            nDevices++;
+        } else if (error != 2) {
+            Serial.printf("Error %d at address 0x%02X\n", error, address);
+        }
+    }
+    if (nDevices == 0) {
+        Serial.println("No I2C devices found");
+    }
+}
+
 void setup()
 {
     Serial.begin(115200);
@@ -59,49 +79,67 @@ void setup()
 #if SENSOR_RST != -1
     pinMode(SENSOR_RST, OUTPUT);
     digitalWrite(SENSOR_RST, LOW);
-    delay(3);
+    delay(30);
     digitalWrite(SENSOR_RST, HIGH);
-    delay(5);
-    delay(1000);
+    delay(50);
+    // delay(1000);
 #endif
 
     // Search for known CSTxxx device addresses
     uint8_t address = 0xFF;
     Wire.begin(SENSOR_SDA, SENSOR_SCL);
-    Wire.beginTransmission(CST816T_SLAVE_ADDRESS);
+
+    // Scan I2C devices
+    scanDevices();
+
+    Wire.beginTransmission(CST816_SLAVE_ADDRESS);
     if (Wire.endTransmission() == 0) {
-        address = CST816T_SLAVE_ADDRESS;
+        address = CST816_SLAVE_ADDRESS;
     }
     Wire.beginTransmission(CST226SE_SLAVE_ADDRESS);
     if (Wire.endTransmission() == 0) {
         address = CST226SE_SLAVE_ADDRESS;
     }
+    Wire.beginTransmission(CST328_SLAVE_ADDRESS);
+    if (Wire.endTransmission() == 0) {
+        address = CST328_SLAVE_ADDRESS;
+    }
     while (address == 0xFF) {
         Serial.println("Could't find touch chip!"); delay(1000);
     }
 
     touch.setPins(SENSOR_RST, SENSOR_IRQ);
     touch.init(Wire, SENSOR_SDA, SENSOR_SCL, address);
 
+
+    Serial.print("Model :"); Serial.println(touch.getModelName());
+
     // Depending on the touch panel, not all touch panels have touch buttons.
     touch.setHomeButtonCallback([](void *user_data) {
         Serial.println("Home key pressed!");
     }, NULL);
 
 
-    // Unable to obtain coordinates after turning on sleep , During sleep state, the external IRQ must be set to high impedance
+    // Unable to obtain coordinates after turning on sleep
     // CST816T sleep current = 1.1 uA
     // CST226SE sleep current = 60 uA
     // touch.sleep();
 
+    // Set touch max xy
+    // touch.setMaxCoordinates(536, 240);
+
+    // Set swap xy
+    // touch.setSwapXY(true);
+
+    // Set mirror xy
+    // touch.setMirrorXY(true, true);
+
 }
 
 void loop()
 {
-
     uint8_t touched = touch.getPoint(x, y, touch.getSupportTouchPoint());
     if (touched) {
-
         for (int i = 0; i < touched; ++i) {
             Serial.print("X[");
             Serial.print(i);

diff --git a/src/REG/CSTxxxConstants.h b/src/REG/CSTxxxConstants.h
@@ -31,22 +31,25 @@
 #pragma once
 
 #define CSTXXX_SLAVE_ADDRESS        (0x15)
-#define CST816T_SLAVE_ADDRESS       (0x15)
+#define CST816_SLAVE_ADDRESS        (0x15)
+#define CST328_SLAVE_ADDRESS        (0x1A)
 #define CST226SE_SLAVE_ADDRESS      (0x5A)
 
 #define CSTXXX_REG_STATUS           (0x00)
 #define CSTXXX_REG_MODEL_ID         (0xA8)
 #define CSTXXX_REG_CHIP_TYPE_L      (0xAA)
 #define CSTXXX_REG_CHIP_TYPE_H      (0xAB)
 
-#define CST816T_MODEL_ID            (0x5356)
-#define CST226SE_MODEL_ID           (0xA8)
 
 #define CST226SE_BUFFER_NUM         (28)
 
 
 
 
+#define CST816S_CHIP_ID             (0xB4)
+#define CST816T_CHIP_ID             (0xB5)
+#define CST716_CHIP_ID              (0x20)
+#define CST226SE_CHIP_ID            (0xA8)