David Smart / RA8875 Featured

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)

Files at this revision

API Documentation at this revision

Revision 205:f215dc32736b, committed 2020-05-23

Comitter:
WiredHome
Date:
Sat May 23 15:59:11 2020 +0000
Parent:
204:48e05a27de25
Child:
206:83edda283d90
Commit message:
Defect correction - disable irq while configuring the FT5206 and GSL1680 touch controllers to avoid unexpected ISRs.

Changed in this revision

RA8875.cpp Show annotated file Show diff for this revision Revisions of this file
RA8875_Touch.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/RA8875.cpp	Thu May 21 01:32:59 2020 +0000
+++ b/RA8875.cpp	Sat May 23 15:59:11 2020 +0000
@@ -235,7 +235,7 @@
     #else
     m_irq->fall(this, &RA8875::TouchPanelISR);
     #endif
-    m_irq->enable_irq();
+    m_irq->disable_irq();   // ensure it is disabled until the init()
     TouchPanelInit();
     INFO("RA8875 end.");
 }
@@ -268,7 +268,6 @@
 
     // Interrupt
     m_irq->mode(PullUp);
-    m_irq->enable_irq();
     #if MBED_VERSION >= MBED_ENCODE_VERSION(5,8,0)
     eventThread.start(callback(&queue, &EventQueue::dispatch_forever));
     m_irq->fall(queue.event(callback(this, &RA8875::TouchPanelISR)));
@@ -277,6 +276,7 @@
     #else
     m_irq->fall(this, &RA8875::TouchPanelISR);
     #endif
+    m_irq->disable_irq();   // ensure it is disabled until the init()
     TouchPanelInit();
 }
 

--- a/RA8875_Touch.cpp	Thu May 21 01:32:59 2020 +0000
+++ b/RA8875_Touch.cpp	Sat May 23 15:59:11 2020 +0000
@@ -50,6 +50,7 @@
 {
     RetCode_t r = noerror;
 
+    m_irq->disable_irq();       // ensure disabled while configuring it
     panelTouched = false;
     if (useTouchPanel == TP_GSL1680) {
         INFO("TouchPanelInit: TP_GSL1680");
@@ -79,6 +80,7 @@
         timeSinceTouch.reset();
         r = _internal_ts_cal();
     }
+    m_irq->enable_irq();
     return r;
 }
 
@@ -92,6 +94,7 @@
         TouchPanelInit();
     } else {
         INFO("TouchPanelInit: TP_RES");
+        m_irq->disable_irq();       // ensure disabled while configuring it
         // Parameter bounds check
         if( \
                 !(bTpEnable == TP_ENABLE || bTpEnable == TP_ENABLE) || \
@@ -125,6 +128,7 @@
             timeSinceTouch.stop();
         }
         _internal_ts_cal();
+        m_irq->enable_irq();
     }
     return noerror;
 }