Duncan Wood
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.
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