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.cpp
- Revision:
- 155:b3f225ae572c
- Parent:
- 154:ad2450fc3dc3
- Child:
- 157:1565f38ca44b
--- a/RA8875_Touch.cpp Fri Aug 17 01:29:06 2018 +0000
+++ b/RA8875_Touch.cpp Tue Nov 13 01:33:41 2018 +0000
@@ -60,8 +60,10 @@
panelTouched = false;
if (useTouchPanel == TP_CAP) {
// Set to normal mode
+ INFO("TouchPanelInit: TP_CAP");
writeRegister8(FT5206_DEVICE_MODE, 0);
} else {
+ INFO("TouchPanelInit: TP_RES");
//TPCR0: Set enable bit, default sample time, wakeup, and ADC clock
WriteCommand(TPCR0, TP_ENABLE | TP_ADC_SAMPLE_DEFAULT_CLKS | TP_ADC_CLKDIV_DEFAULT);
// TPCR1: Set auto/manual, Ref voltage, debounce, manual mode params
@@ -87,8 +89,10 @@
RetCode_t RA8875::TouchPanelInit(uint8_t bTpEnable, uint8_t bTpAutoManual, uint8_t bTpDebounce, uint8_t bTpManualMode, uint8_t bTpAdcClkDiv, uint8_t bTpAdcSampleTime)
{
if (useTouchPanel == TP_CAP) {
+ INFO("TouchPanelInit: TP_CAP");
TouchPanelInit();
} else {
+ INFO("TouchPanelInit: TP_RES");
// Parameter bounds check
if( \
!(bTpEnable == TP_ENABLE || bTpEnable == TP_ENABLE) || \
@@ -320,6 +324,8 @@
if (TouchPoint) {
*TouchPoint = touchInfo[0].coordinates;
ts = touchInfo[0].touchCode;
+ INFO("Touch[0] %2d (%4d,%4d)", touchInfo[0].touchCode,
+ touchInfo[0].coordinates.x, touchInfo[0].coordinates.y);
} else {
ts = touch;
}
@@ -376,6 +382,7 @@
void RA8875::_TouchTicker(void)
{
+ INFO("_TouchTicker()");
if (touchTimer.read_us() > NOTOUCH_TIMEOUT_uS) {
touchSample = 0;
if (touchState == held)
@@ -694,7 +701,9 @@
uint8_t RA8875::readRegister8(uint8_t reg) {
char val;
+ //INFO("readRegister8(%02X) @ %X", reg, m_i2c);
m_i2c->write(m_addr, (const char *)®, 1);
+ //INFO(" write(%X, ...)", m_addr);
m_i2c->read(m_addr, &val, 1);
return (uint8_t)val;
}
@@ -711,16 +720,21 @@
// Interrupt for touch detection
void RA8875::TouchPanelISR(void)
{
- getTouchPositions();
- panelTouched = true;
+ //INFO("TouchPanelISR()");
+ if (getTouchPositions())
+ panelTouched = true;
+ //INFO(" return");
}
uint8_t RA8875::getTouchPositions(void) {
uint8_t valXH;
uint8_t valYH;
+ //INFO("getTouchPositions()");
numberOfTouchPoints = readRegister8(FT5206_TD_STATUS) & 0xF;
+ //INFO(" numOfTouchPoints %d", numberOfTouchPoints);
gesture = readRegister8(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).
@@ -733,34 +747,69 @@
touchInfo[4].touchID = (valYH >> 4);
touchInfo[4].coordinates.x = (valXH & 0x0f)*256 + readRegister8(FT5206_TOUCH5_XL);
touchInfo[4].coordinates.y = (valYH & 0x0f)*256 + readRegister8(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 = readRegister8(FT5206_TOUCH4_XH);
valYH = readRegister8(FT5206_TOUCH4_YH);
touchInfo[3].touchCode = EventFlagToTouchCode[valXH >> 6];
touchInfo[3].touchID = (valYH >> 4);
- touchInfo[3].coordinates.x = (readRegister8(FT5206_TOUCH4_XH) & 0x0f)*256 + readRegister8(FT5206_TOUCH4_XL);
+ touchInfo[3].coordinates.x = (valXH & 0x0f)*256 + readRegister8(FT5206_TOUCH4_XL);
touchInfo[3].coordinates.y = (valYH & 0x0f)*256 + readRegister8(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 = readRegister8(FT5206_TOUCH3_XH);
valYH = readRegister8(FT5206_TOUCH3_YH);
touchInfo[2].touchCode = EventFlagToTouchCode[valXH >> 6];
touchInfo[2].touchID = (valYH >> 4);
- touchInfo[2].coordinates.x = (readRegister8(FT5206_TOUCH3_XH) & 0x0f)*256 + readRegister8(FT5206_TOUCH3_XL);
+ touchInfo[2].coordinates.x = (valXH & 0x0f)*256 + readRegister8(FT5206_TOUCH3_XL);
touchInfo[2].coordinates.y = (valYH & 0x0f)*256 + readRegister8(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 = readRegister8(FT5206_TOUCH2_XH);
valYH = readRegister8(FT5206_TOUCH2_YH);
touchInfo[1].touchCode = EventFlagToTouchCode[valXH >> 6];
touchInfo[1].touchID = (valYH >> 4);
- touchInfo[1].coordinates.x = (readRegister8(FT5206_TOUCH2_XH) & 0x0f)*256 + readRegister8(FT5206_TOUCH2_XL);
- touchInfo[1].coordinates.y = (valYH & 0x0f)*256 + readRegister8(FT5206_TOUCH2_YL);
+ touchInfo[1].coordinates.x = (valXH & 0x0f)*256 + readRegister8(FT5206_TOUCH2_XL);
+ touchInfo[1].coordinates.y = (valYH & 0x0f)*256 + readRegister8(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 = readRegister8(FT5206_TOUCH1_XH);
valYH = readRegister8(FT5206_TOUCH1_YH);
touchInfo[0].touchCode = EventFlagToTouchCode[valXH >> 6];
touchInfo[0].touchID = (valYH >> 4);
- touchInfo[0].coordinates.x = (readRegister8(FT5206_TOUCH1_XH) & 0x0f)*256 + readRegister8(FT5206_TOUCH1_XL);
+ touchInfo[0].coordinates.x = (valXH & 0x0f)*256 + readRegister8(FT5206_TOUCH1_XL);
touchInfo[0].coordinates.y = (valYH & 0x0f)*256 + readRegister8(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;
RA8875: 4" to 8" (WQVGA, WVGA, Multi-Touch, Keypad)