Radu Radoveneanu / UniGraphic

Basically i glued Peter Drescher and Simon Ford libs in a GraphicsDisplay class, then derived TFT or LCD class (which inherits Protocols class), then the most derived ones (Inits), which are per-display and are the only part needed to be adapted to diff hw.

Fork of UniGraphic by GraphicsDisplay

Diff: Protocols/SPI16.cpp

Revision:
1:ff019d22b275
Child:
4:12ba0ecc2c1f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Protocols/SPI16.cpp	Fri Feb 13 15:25:10 2015 +0000
@@ -0,0 +1,147 @@
+#include "SPI16.h"
+//#define USE_CS
+
+SPI16::SPI16(int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC)
+    : _CS(CS), _spi(mosi, miso, sclk), _reset(reset), _DC(DC)
+{
+    _reset = 1;
+    _DC=1;
+    _CS=1;
+    _spi.format(16,0);                  // 8 bit spi mode 0
+ //   _spi.frequency(12000000);          // 10 Mhz SPI clock, 12mhz for F411
+    _spi.frequency(Hz);
+    hw_reset();    
+}
+
+void SPI16::wr_cmd8(unsigned char cmd)
+{   
+#ifdef USE_CS
+    _CS = 0;
+#endif
+    _spi.format(8,0); // it takes time, better use wr_cmd16 with NOP cmd
+    _DC.write(0); // 0=cmd
+    _spi.write(cmd);      // write 8bit
+    _spi.format(16,0);
+#ifdef USE_CS
+    _CS = 1;
+#endif
+}
+void SPI16::wr_data8(unsigned char data)
+{
+#ifdef USE_CS
+    _CS = 0;
+#endif
+    _spi.format(8,0); // it takes time, check prev cmd parameter, in case use wr_data16 with repeated byte
+    _DC.write(1); // 1=data
+    _spi.write(data);    // write 8bit
+    _spi.format(16,0);
+#ifdef USE_CS
+    _CS = 1;
+#endif
+}
+void SPI16::wr_data8(unsigned char data, unsigned int count)
+{
+#ifdef USE_CS
+    _CS = 0;
+#endif
+    _spi.format(8,0);
+    _DC.write(1); // 1=data
+    while(count)
+    {
+        _spi.write(data);    // write 8bit
+        count--;
+    }
+    _spi.format(16,0);
+#ifdef USE_CS
+    _CS = 1;
+#endif
+}
+void SPI16::wr_data8buf(unsigned char* data, unsigned int lenght)
+{
+#ifdef USE_CS
+    _CS = 0;
+#endif
+    _spi.format(8,0);
+    _DC.write(1); // 1=data
+    while(lenght)
+    {
+        _spi.write(*data++);    // write 8bit
+       // data++;
+        lenght--;
+    }
+    _spi.format(16,0);
+#ifdef USE_CS
+    _CS = 1;
+#endif
+}
+void SPI16::wr_cmd16(unsigned short cmd)
+{   
+#ifdef USE_CS
+    _CS = 0;
+#endif    
+    _DC.write(0); // 0=cmd
+    _spi.write(cmd);      // write 16bit
+#ifdef USE_CS
+    _CS = 1;
+#endif
+}
+void SPI16::wr_data16(unsigned short data)
+{
+#ifdef USE_CS
+    _CS = 0;
+#endif
+    _DC.write(1); // 1=data
+    _spi.write(data);    // write 16bit
+#ifdef USE_CS
+    _CS = 1;
+#endif
+}
+void SPI16::wr_data16(unsigned short data, unsigned int count)
+{
+#ifdef USE_CS
+    _CS = 0;
+#endif
+    _DC.write(1); // 1=data
+    while(count)
+    {
+        _spi.write(data);
+        count--;
+    }
+#ifdef USE_CS
+    _CS = 1;
+#endif
+}
+void SPI16::wr_data16buf(unsigned short* data, unsigned int lenght)
+{
+#ifdef USE_CS
+    _CS = 0;
+#endif
+    _DC.write(1); // 1=data
+    while(lenght)
+    {
+        _spi.write(*data);
+        data++;
+        lenght--;
+    }
+#ifdef USE_CS
+    _CS = 1;
+#endif
+}
+void SPI16::hw_reset()
+{
+    wait_ms(15);
+    _DC = 1;
+ //   _CS = 1;
+    _CS = 0;
+    _reset = 0;                        // display reset
+    wait_us(50);
+    _reset = 1;                       // end reset
+    wait_ms(15);
+#ifndef USE_CS
+    _CS=0;      // put CS low now and forever
+#endif
+}
+void SPI16::BusEnable(bool enable)
+{
+    _CS = enable ? 0:1;
+}
\ No newline at end of file