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

Protocols/SPI8.cpp@1:ff019d22b275, 2015-02-13 (annotated)

Committer:
Geremia
Date:
Fri Feb 13 15:25:10 2015 +0000
Revision:
1:ff019d22b275
Parent:
0:75ec1b3cde17
Child:
4:12ba0ecc2c1f
Added SPI_16, LCD done

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 0:75ec1b3cde17 1 #include "SPI8.h"
Geremia 0:75ec1b3cde17 2
Geremia 0:75ec1b3cde17 3 //#define USE_CS
Geremia 0:75ec1b3cde17 4
Geremia 1:ff019d22b275 5 SPI8::SPI8(int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC)
Geremia 0:75ec1b3cde17 6 : _CS(CS), _spi(mosi, miso, sclk), _reset(reset), _DC(DC)
Geremia 0:75ec1b3cde17 7 {
Geremia 0:75ec1b3cde17 8 _reset = 1;
Geremia 0:75ec1b3cde17 9 _DC=1;
Geremia 0:75ec1b3cde17 10 _CS=1;
Geremia 0:75ec1b3cde17 11 _spi.format(8,0); // 8 bit spi mode 0
Geremia 0:75ec1b3cde17 12 // _spi.frequency(12000000); // 10 Mhz SPI clock, 12mhz for F411
Geremia 1:ff019d22b275 13 _spi.frequency(Hz);
Geremia 0:75ec1b3cde17 14 hw_reset();
Geremia 0:75ec1b3cde17 15 }
Geremia 0:75ec1b3cde17 16
Geremia 1:ff019d22b275 17 void SPI8::wr_cmd8(unsigned char cmd)
Geremia 0:75ec1b3cde17 18 {
Geremia 0:75ec1b3cde17 19 #ifdef USE_CS
Geremia 0:75ec1b3cde17 20 _CS = 0;
Geremia 0:75ec1b3cde17 21 #endif
Geremia 0:75ec1b3cde17 22 _DC.write(0); // 0=cmd
Geremia 0:75ec1b3cde17 23 _spi.write(cmd); // write 8bit
Geremia 0:75ec1b3cde17 24 #ifdef USE_CS
Geremia 0:75ec1b3cde17 25 _CS = 1;
Geremia 0:75ec1b3cde17 26 #endif
Geremia 0:75ec1b3cde17 27 }
Geremia 1:ff019d22b275 28 void SPI8::wr_data8(unsigned char data)
Geremia 0:75ec1b3cde17 29 {
Geremia 0:75ec1b3cde17 30 #ifdef USE_CS
Geremia 0:75ec1b3cde17 31 _CS = 0;
Geremia 0:75ec1b3cde17 32 #endif
Geremia 0:75ec1b3cde17 33 _DC.write(1); // 1=data
Geremia 1:ff019d22b275 34 _spi.write(data); // write 8bit
Geremia 0:75ec1b3cde17 35 #ifdef USE_CS
Geremia 0:75ec1b3cde17 36 _CS = 1;
Geremia 0:75ec1b3cde17 37 #endif
Geremia 0:75ec1b3cde17 38 }
Geremia 1:ff019d22b275 39 void SPI8::wr_data8(unsigned char data, unsigned int count)
Geremia 0:75ec1b3cde17 40 {
Geremia 0:75ec1b3cde17 41 #ifdef USE_CS
Geremia 0:75ec1b3cde17 42 _CS = 0;
Geremia 0:75ec1b3cde17 43 #endif
Geremia 0:75ec1b3cde17 44 _DC.write(1); // 1=data
Geremia 0:75ec1b3cde17 45 while(count)
Geremia 0:75ec1b3cde17 46 {
Geremia 1:ff019d22b275 47 _spi.write(data); // write 8bit
Geremia 0:75ec1b3cde17 48 count--;
Geremia 0:75ec1b3cde17 49 }
Geremia 0:75ec1b3cde17 50 #ifdef USE_CS
Geremia 0:75ec1b3cde17 51 _CS = 1;
Geremia 0:75ec1b3cde17 52 #endif
Geremia 0:75ec1b3cde17 53 }
Geremia 1:ff019d22b275 54 void SPI8::wr_data8buf(unsigned char* data, unsigned int lenght)
Geremia 0:75ec1b3cde17 55 {
Geremia 0:75ec1b3cde17 56 #ifdef USE_CS
Geremia 0:75ec1b3cde17 57 _CS = 0;
Geremia 0:75ec1b3cde17 58 #endif
Geremia 0:75ec1b3cde17 59 _DC.write(1); // 1=data
Geremia 0:75ec1b3cde17 60 while(lenght)
Geremia 0:75ec1b3cde17 61 {
Geremia 1:ff019d22b275 62 _spi.write(*data++); // write 8bit
Geremia 1:ff019d22b275 63 // data++;
Geremia 1:ff019d22b275 64 lenght--;
Geremia 1:ff019d22b275 65 }
Geremia 1:ff019d22b275 66 #ifdef USE_CS
Geremia 1:ff019d22b275 67 _CS = 1;
Geremia 1:ff019d22b275 68 #endif
Geremia 1:ff019d22b275 69 }
Geremia 1:ff019d22b275 70 void SPI8::wr_cmd16(unsigned short cmd)
Geremia 1:ff019d22b275 71 {
Geremia 1:ff019d22b275 72 #ifdef USE_CS
Geremia 1:ff019d22b275 73 _CS = 0;
Geremia 1:ff019d22b275 74 #endif
Geremia 1:ff019d22b275 75 _DC.write(0); // 0=cmd
Geremia 1:ff019d22b275 76 _spi.write(cmd>>8); // write 8bit
Geremia 1:ff019d22b275 77 _spi.write(cmd&0xFF); // write 8bit
Geremia 1:ff019d22b275 78 #ifdef USE_CS
Geremia 1:ff019d22b275 79 _CS = 1;
Geremia 1:ff019d22b275 80 #endif
Geremia 1:ff019d22b275 81 }
Geremia 1:ff019d22b275 82 void SPI8::wr_data16(unsigned short data)
Geremia 1:ff019d22b275 83 {
Geremia 1:ff019d22b275 84 #ifdef USE_CS
Geremia 1:ff019d22b275 85 _CS = 0;
Geremia 1:ff019d22b275 86 #endif
Geremia 1:ff019d22b275 87 _DC.write(1); // 1=data
Geremia 1:ff019d22b275 88 _spi.write(data>>8); // write 8bit
Geremia 1:ff019d22b275 89 _spi.write(data&0xFF); // write 8bit
Geremia 1:ff019d22b275 90 #ifdef USE_CS
Geremia 1:ff019d22b275 91 _CS = 1;
Geremia 1:ff019d22b275 92 #endif
Geremia 1:ff019d22b275 93 }
Geremia 1:ff019d22b275 94 void SPI8::wr_data16(unsigned short data, unsigned int count)
Geremia 1:ff019d22b275 95 {
Geremia 1:ff019d22b275 96 #ifdef USE_CS
Geremia 1:ff019d22b275 97 _CS = 0;
Geremia 1:ff019d22b275 98 #endif
Geremia 1:ff019d22b275 99 _DC.write(1); // 1=data
Geremia 1:ff019d22b275 100 if((data>>8)==(data&0xFF))
Geremia 1:ff019d22b275 101 {
Geremia 1:ff019d22b275 102 count<<=1;
Geremia 1:ff019d22b275 103 while(count)
Geremia 1:ff019d22b275 104 {
Geremia 1:ff019d22b275 105 _spi.write(data); // write 8bit
Geremia 1:ff019d22b275 106 count--;
Geremia 1:ff019d22b275 107 }
Geremia 1:ff019d22b275 108 }
Geremia 1:ff019d22b275 109 else
Geremia 1:ff019d22b275 110 {
Geremia 1:ff019d22b275 111 while(count)
Geremia 1:ff019d22b275 112 {
Geremia 1:ff019d22b275 113 _spi.write(data>>8); // write 8bit
Geremia 1:ff019d22b275 114 _spi.write(data&0xFF); // write 8bit
Geremia 1:ff019d22b275 115 count--;
Geremia 1:ff019d22b275 116 }
Geremia 1:ff019d22b275 117 }
Geremia 1:ff019d22b275 118 #ifdef USE_CS
Geremia 1:ff019d22b275 119 _CS = 1;
Geremia 1:ff019d22b275 120 #endif
Geremia 1:ff019d22b275 121 }
Geremia 1:ff019d22b275 122 void SPI8::wr_data16buf(unsigned short* data, unsigned int lenght)
Geremia 1:ff019d22b275 123 {
Geremia 1:ff019d22b275 124 #ifdef USE_CS
Geremia 1:ff019d22b275 125 _CS = 0;
Geremia 1:ff019d22b275 126 #endif
Geremia 1:ff019d22b275 127 _DC.write(1); // 1=data
Geremia 1:ff019d22b275 128 while(lenght)
Geremia 1:ff019d22b275 129 {
Geremia 1:ff019d22b275 130 _spi.write((*data)>>8); // write 8bit
Geremia 1:ff019d22b275 131 _spi.write((*data)&0xFF); // write 8bit
Geremia 1:ff019d22b275 132 data++;
Geremia 0:75ec1b3cde17 133 lenght--;
Geremia 0:75ec1b3cde17 134 }
Geremia 0:75ec1b3cde17 135 #ifdef USE_CS
Geremia 0:75ec1b3cde17 136 _CS = 1;
Geremia 0:75ec1b3cde17 137 #endif
Geremia 0:75ec1b3cde17 138 }
Geremia 0:75ec1b3cde17 139 void SPI8::hw_reset()
Geremia 0:75ec1b3cde17 140 {
Geremia 0:75ec1b3cde17 141 wait_ms(15);
Geremia 0:75ec1b3cde17 142 _DC = 1;
Geremia 0:75ec1b3cde17 143 // _CS = 1;
Geremia 0:75ec1b3cde17 144 _CS = 0;
Geremia 0:75ec1b3cde17 145 _reset = 0; // display reset
Geremia 0:75ec1b3cde17 146 wait_us(50);
Geremia 0:75ec1b3cde17 147 _reset = 1; // end reset
Geremia 0:75ec1b3cde17 148 wait_ms(15);
Geremia 0:75ec1b3cde17 149 #ifndef USE_CS
Geremia 0:75ec1b3cde17 150 _CS=0; // put CS low now and forever
Geremia 0:75ec1b3cde17 151 #endif
Geremia 0:75ec1b3cde17 152 }
Geremia 0:75ec1b3cde17 153 void SPI8::BusEnable(bool enable)
Geremia 0:75ec1b3cde17 154 {
Geremia 0:75ec1b3cde17 155 _CS = enable ? 0:1;
Geremia 0:75ec1b3cde17 156 }