David Smart
Library to control a Graphics TFT connected to 4-wire SPI - revised for the Raio RA8875 Display Controller.
Dependents: FRDM_RA8875_mPaint RA8875_Demo RA8875_KeyPadDemo SignalGenerator ... more
Fork of
SPI_TFT
by 
Peter Drescher
See Components - RA8875 Based Display
Enhanced touch-screen support - where it previous supported both the Resistive Touch and Capacitive Touch based on the FT5206 Touch Controller, now it also has support for the GSL1680 Touch Controller.
Offline Help Manual (Windows chm)
/media/uploads/WiredHome/ra8875.zip.bin (download, rename to .zip and unzip)
Diff: RA8875_Touch_FT5206.cpp
- Revision:
- 166:53fd4a876dac
- Parent:
- 165:695c24cc5197
- Child:
- 178:ae472eb22740
--- a/RA8875_Touch_FT5206.cpp Sun Feb 24 00:40:00 2019 +0000
+++ b/RA8875_Touch_FT5206.cpp Sun Feb 24 19:28:26 2019 +0000
@@ -67,83 +67,40 @@
gesture = FT5206_ReadRegU8(FT5206_GEST_ID);
//INFO(" gesture %d", gesture);
- // If the switch statement was based only on numberOfTouchPoints, it would not
- // be able to generate notification for 'release' events (as it is no longer touched).
- // Therefore, forcing a 5, and it intentionally falls through each lower case.
- switch (5) { // numberOfTouchPoints
- case 5:
- valXH = FT5206_ReadRegU8(FT5206_TOUCH5_XH);
- valYH = FT5206_ReadRegU8(FT5206_TOUCH5_YH);
- touchInfo[4].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
- touchInfo[4].touchID = (valYH >> 4);
- touchInfo[4].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH5_XL);
- touchInfo[4].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH5_YL);
- if (touchInfo[4].touchCode)
- INFO(" Touch[%d] code %d, id %2d, (%4d,%4d)",
- 5,
- touchInfo[4].touchCode,
- touchInfo[4].touchID,
- touchInfo[4].coordinates.x,
- touchInfo[4].coordinates.y);
- case 4:
- valXH = FT5206_ReadRegU8(FT5206_TOUCH4_XH);
- valYH = FT5206_ReadRegU8(FT5206_TOUCH4_YH);
- touchInfo[3].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
- touchInfo[3].touchID = (valYH >> 4);
- touchInfo[3].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH4_XL);
- touchInfo[3].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH4_YL);
- if (touchInfo[3].touchCode)
- INFO(" Touch[%d] code %d, id %2d, (%4d,%4d)",
- 4,
- touchInfo[3].touchCode,
- touchInfo[3].touchID,
- touchInfo[3].coordinates.x,
- touchInfo[3].coordinates.y);
- case 3:
- valXH = FT5206_ReadRegU8(FT5206_TOUCH3_XH);
- valYH = FT5206_ReadRegU8(FT5206_TOUCH3_YH);
- touchInfo[2].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
- touchInfo[2].touchID = (valYH >> 4);
- touchInfo[2].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH3_XL);
- touchInfo[2].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH3_YL);
- if (touchInfo[2].touchCode)
- INFO(" Touch[%d] code %d, id %2d, (%4d,%4d)",
- 3,
- touchInfo[2].touchCode,
- touchInfo[2].touchID,
- touchInfo[2].coordinates.x,
- touchInfo[2].coordinates.y);
- case 2:
- valXH = FT5206_ReadRegU8(FT5206_TOUCH2_XH);
- valYH = FT5206_ReadRegU8(FT5206_TOUCH2_YH);
- touchInfo[1].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
- touchInfo[1].touchID = (valYH >> 4);
- touchInfo[1].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH2_XL);
- touchInfo[1].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH2_YL);
- if (touchInfo[1].touchCode)
- INFO(" Touch[%d] code %d, id %2d, (%4d,%4d)",
- 2,
- touchInfo[1].touchCode,
- touchInfo[1].touchID,
- touchInfo[1].coordinates.x,
- touchInfo[1].coordinates.y);
- case 1:
- valXH = FT5206_ReadRegU8(FT5206_TOUCH1_XH);
- valYH = FT5206_ReadRegU8(FT5206_TOUCH1_YH);
- touchInfo[0].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
- touchInfo[0].touchID = (valYH >> 4);
- touchInfo[0].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH1_XL);
- touchInfo[0].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH1_YL);
- if (touchInfo[0].touchCode)
- INFO(" Touch[%d] code %d, id %2d, (%4d,%4d)",
- 1,
- touchInfo[0].touchCode,
- touchInfo[0].touchID,
- touchInfo[0].coordinates.x,
- touchInfo[0].coordinates.y);
- break;
- default:
- break;
- }
+ valXH = FT5206_ReadRegU8(FT5206_TOUCH5_XH);
+ valYH = FT5206_ReadRegU8(FT5206_TOUCH5_YH);
+ touchInfo[4].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
+ touchInfo[4].touchID = (valYH >> 4);
+ touchInfo[4].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH5_XL);
+ touchInfo[4].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH5_YL);
+
+ valXH = FT5206_ReadRegU8(FT5206_TOUCH4_XH);
+ valYH = FT5206_ReadRegU8(FT5206_TOUCH4_YH);
+ touchInfo[3].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
+ touchInfo[3].touchID = (valYH >> 4);
+ touchInfo[3].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH4_XL);
+ touchInfo[3].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH4_YL);
+
+ valXH = FT5206_ReadRegU8(FT5206_TOUCH3_XH);
+ valYH = FT5206_ReadRegU8(FT5206_TOUCH3_YH);
+ touchInfo[2].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
+ touchInfo[2].touchID = (valYH >> 4);
+ touchInfo[2].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH3_XL);
+ touchInfo[2].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH3_YL);
+
+ valXH = FT5206_ReadRegU8(FT5206_TOUCH2_XH);
+ valYH = FT5206_ReadRegU8(FT5206_TOUCH2_YH);
+ touchInfo[1].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
+ touchInfo[1].touchID = (valYH >> 4);
+ touchInfo[1].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH2_XL);
+ touchInfo[1].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH2_YL);
+
+ valXH = FT5206_ReadRegU8(FT5206_TOUCH1_XH);
+ valYH = FT5206_ReadRegU8(FT5206_TOUCH1_YH);
+ touchInfo[0].touchCode = FT5206_EventFlagToTouchCode[valXH >> 6];
+ touchInfo[0].touchID = (valYH >> 4);
+ touchInfo[0].coordinates.x = (valXH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH1_XL);
+ touchInfo[0].coordinates.y = (valYH & 0x0f)*256 + FT5206_ReadRegU8(FT5206_TOUCH1_YL);
+
return numberOfTouchPoints;
}
RA8875: 4" to 8" (WQVGA, WVGA, Multi-Touch, Keypad)