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)

Revision:
93:6fbc516de05e
Parent:
92:ce1ab76e8614
Child:
94:203729061e48
--- a/RA8875.cpp	Sun Feb 01 17:07:13 2015 +0000
+++ b/RA8875.cpp	Sun Feb 01 18:50:57 2015 +0000
@@ -1051,18 +1051,19 @@
     color_t pixel;
     RetCode_t ret = noerror;
 
-    INFO("getPixelStream(%p, %u, %d, %d)", p, count, x, y);
+    //INFO("getPixelStream(%p, %u, %d, %d)", p, count, x, y);
     PERFORMANCE_RESET;
     //WriteCommand(0x45,0x00);    // read left->right, top->bottom
     ret = WriteCommand(0x40,0x00);    // Graphics write mode
-    INFO("  r = %d", ret);
+    //INFO("  r = %d", ret);
     ret = SetGraphicsCursorRead(x, y);
-    INFO("  r = %d", ret);
+    //INFO("  r = %d", ret);
     ret = WriteCommand(0x02);
-    INFO("  r = %d", ret);
+    //INFO("  r = %d", ret);
     _select(true);
     _spiwrite(0x40);         // Cmd: read data
     _spiwrite(0x00);         // dummy read
+    _spiwrite(0x00);         // dummy read  [20150201: Required to properly align the data stream. Not yet sure why...]
     while (count--) {
         pixel  = _spiread();
         pixel |= (_spiread() << 8);
@@ -1666,10 +1667,10 @@
         }
 
         // Be optimistic - don't check for errors.
-        //HexDump("BMP_Header", (uint8_t *)&BMP_Header, sizeof(BMP_Header));
+        HexDump("BMP_Header", (uint8_t *)&BMP_Header, sizeof(BMP_Header));
         size_t r = fwrite(&BMP_Header, sizeof(char), sizeof(BMP_Header), Image);
 
-        //HexDump("BMP_Info", (uint8_t *)&BMP_Info, sizeof(BMP_Info));
+        HexDump("BMP_Info", (uint8_t *)&BMP_Info, sizeof(BMP_Info));
         r = fwrite(&BMP_Info, sizeof(char), sizeof(BMP_Info), Image);
 
         color_t transparency = GetBackgroundTransparencyColor();
@@ -1703,6 +1704,8 @@
                     ERR("getPixelStream error, and no recovery handler...");
                 }
             }
+            INFO("1st Color: %04X", pixelBuffer[0]);
+            HexDump("Raster", (uint8_t *)pixelBuffer, w);
             // Convert the local buffer to RGBQUAD format
             int lb = 0;
             for (int i=0; i<w; i++) {