Toyomasa Watarai / SPI_TFT

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.

Fork of SPI_TFT by Peter Drescher

Diff: SPI_TFT.cpp

Revision:
19:33b5a7d74e66
Parent:
18:52cbeede86f0
--- a/SPI_TFT.cpp	Tue Oct 22 20:17:29 2013 +0000
+++ b/SPI_TFT.cpp	Tue Feb 21 13:49:57 2017 +0000
@@ -175,8 +175,14 @@
 // write to a TFT register
 void SPI_TFT::wr_reg (unsigned char reg, unsigned char val)
 {
-    wr_cmd(reg);
-    wr_dat(val);
+    //wr_cmd(reg);
+    //wr_dat(val);
+    _cs = 0;
+    _spi.write(0x7000 | reg);
+    _cs = 1;
+    _cs = 0;
+    _spi.write(0x7200 | val);
+    _cs = 1;    
 }
 
 // read from a TFT register
@@ -194,7 +200,8 @@
 #else                              // 16 Bit SPI  
     _spi.format(16,3);                 // 16 bit spi mode 3
 #endif
-    _spi.frequency(48000000);          // 48 Mhz SPI clock
+    //_spi.frequency(48000000);          // 48 Mhz SPI clock
+    _spi.frequency(25000000);
     _cs = 1;                           // cs high
     _reset = 0;                        // display reset
 
@@ -360,7 +367,7 @@
 // clear screen
 void SPI_TFT::cls (void)
 {
-    fprintf(stderr, "CLS \n\r");
+//    fprintf(stderr, "CLS \n\r");
     int pixel = ( width() * height());
     #if defined USE_DMA
         int dma_count;