Paulo Bruckmann / Adafruit_ST7735_BURST_SPI

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Files at this revision

API Documentation at this revision

Revision 8:66c5dc727281, committed 2020-04-24

Comitter:
peekpt
Date:
Fri Apr 24 11:14:56 2020 +0000
Parent:
7:856a3443f68d
Commit message:
ADDED BURST SPI

Changed in this revision

Adafruit_ST7735.cpp Show annotated file Show diff for this revision Revisions of this file
Adafruit_ST7735.h Show annotated file Show diff for this revision Revisions of this file 
--- a/Adafruit_ST7735.cpp	Mon Apr 20 18:17:52 2020 +0000
+++ b/Adafruit_ST7735.cpp	Fri Apr 24 11:14:56 2020 +0000
@@ -17,6 +17,7 @@
  ****************************************************/
 
 // + GREENTAB2 display
+// BurstSPI
 
 #include "Adafruit_ST7735.h"
 
@@ -36,14 +37,16 @@
   _rs = 0;
   _cs = 0;
 
-  lcdPort.write(c);
+  lcdPort.fastWrite(c);
+  lcdPort.clearRX();
   _cs = 1;
 }
 
 void Adafruit_ST7735::writedata(uint8_t c) {
   _rs = 1;
   _cs = 0;
-  lcdPort.write(c);
+  lcdPort.fastWrite(c);
+  lcdPort.clearRX();
 
   _cs = 1;
 }
@@ -300,8 +303,11 @@
   _cs = 1;
 
   // use default SPI format
-  lcdPort.format(8, 0);
-  lcdPort.frequency(20000000);
+
+  // lcdPort.format(8, 0);
+  // lcdPort.frequency(4000000);
+
+  lcdPort.setFormat();
 
   // toggle RST low to reset; CS low so it'll listen to us
   _cs = 0;
@@ -371,8 +377,10 @@
   _rs = 1;
   _cs = 0;
 
-  lcdPort.write(color >> 8);
-  lcdPort.write(color);
+  lcdPort.fastWrite(color >> 8);
+  lcdPort.clearRX();
+  lcdPort.fastWrite(color);
+  lcdPort.clearRX();
   _cs = 1;
 }
 
@@ -385,8 +393,10 @@
   _rs = 1;
   _cs = 0;
 
-  lcdPort.write(color >> 8);
-  lcdPort.write(color);
+  lcdPort.fastWrite(color >> 8);
+  lcdPort.clearRX();
+  lcdPort.fastWrite(color);
+  lcdPort.clearRX();
 
   _cs = 1;
 }
@@ -404,8 +414,10 @@
   _rs = 1;
   _cs = 0;
   while (h--) {
-    lcdPort.write(hi);
-    lcdPort.write(lo);
+    lcdPort.fastWrite(hi);
+    lcdPort.clearRX();
+    lcdPort.fastWrite(lo);
+    lcdPort.clearRX();
   }
   _cs = 1;
 }
@@ -423,8 +435,10 @@
   _rs = 1;
   _cs = 0;
   while (w--) {
-    lcdPort.write(hi);
-    lcdPort.write(lo);
+    lcdPort.fastWrite(hi);
+    lcdPort.clearRX();
+    lcdPort.fastWrite(lo);
+    lcdPort.clearRX();
   }
   _cs = 1;
 }
@@ -451,8 +465,10 @@
   _cs = 0;
   for (y = h; y > 0; y--) {
     for (x = w; x > 0; x--) {
-      lcdPort.write(hi);
-      lcdPort.write(lo);
+      lcdPort.fastWrite(hi);
+      lcdPort.clearRX();
+      lcdPort.fastWrite(lo);
+      lcdPort.clearRX();
     }
   }
 
@@ -535,4 +551,4 @@
 
 void Adafruit_ST7735::invertDisplay(boolean i) {
   writecommand(i ? ST7735_INVON : ST7735_INVOFF);
-}
+}
\ No newline at end of file

--- a/Adafruit_ST7735.h	Mon Apr 20 18:17:52 2020 +0000
+++ b/Adafruit_ST7735.h	Fri Apr 24 11:14:56 2020 +0000
@@ -16,16 +16,16 @@
   MIT license, all text above must be included in any redistribution
  ****************************************************/
 
-
- // + GREENTAB2 display 
+// + GREENTAB2 display
+// BurstSPI
 
 #ifndef _ADAFRUIT_ST7735H_
 #define _ADAFRUIT_ST7735H_
 
 #include "Adafruit_GFX.h"
+#include "BurstSPI.h"
 #include "mbed.h"
 
-
 #define boolean bool
 
 // some flags for initR() :(
@@ -102,6 +102,7 @@
 #define ST7735_MAGENTA 0xF81F
 #define ST7735_YELLOW 0xFFE0
 #define ST7735_WHITE 0xFFFF
+#define ST7735_ORANGE 0xFC00
 
 class Adafruit_ST7735 : public Adafruit_GFX {
 
@@ -131,10 +132,10 @@
 
   uint8_t colstart, rowstart; // some displays need this changed
 
-  SPI lcdPort;     // does SPI MOSI, MISO and SCK
-  DigitalOut _cs;  // does SPI CE
-  DigitalOut _rs;  // register/date select
-  DigitalOut _rst; // does 3310 LCD_RST
+  BurstSPI lcdPort; // does SPI MOSI, MISO and SCK
+  DigitalOut _cs;   // does SPI CE
+  DigitalOut _rs;   // register/date select
+  DigitalOut _rst;  // does 3310 LCD_RST
 };
 
-#endif
+#endif
\ No newline at end of file