Stepan Smejkal / UniGraphic

.

Protocols/PAR8.cpp@0:75ec1b3cde17, 2015-02-12 (annotated)

Committer:
Geremia
Date:
Thu Feb 12 22:22:47 2015 +0000
Revision:
0:75ec1b3cde17
Child:
1:ff019d22b275
Initial tests, LCD par and spi ok

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 0:75ec1b3cde17 1 #include "PAR8.h"
Geremia 0:75ec1b3cde17 2
Geremia 0:75ec1b3cde17 3 PAR8::PAR8(PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD)
Geremia 0:75ec1b3cde17 4 : _port(port,0xFF), _CS(CS), _reset(reset), _DC(DC), _WR(WR), _RD(RD)
Geremia 0:75ec1b3cde17 5 {
Geremia 0:75ec1b3cde17 6 _reset = 1;
Geremia 0:75ec1b3cde17 7 _DC=1;
Geremia 0:75ec1b3cde17 8 _WR=1;
Geremia 0:75ec1b3cde17 9 _RD=1;
Geremia 0:75ec1b3cde17 10 _CS=1;
Geremia 0:75ec1b3cde17 11 #ifdef STMPORTDEBUG
Geremia 0:75ec1b3cde17 12 findport(port); //on return, GPIO get disabled
Geremia 0:75ec1b3cde17 13 #endif
Geremia 0:75ec1b3cde17 14 _port.mode(PullNone);
Geremia 0:75ec1b3cde17 15 _port.output(); // will re-enable our GPIO port
Geremia 0:75ec1b3cde17 16 hw_reset();
Geremia 0:75ec1b3cde17 17 }
Geremia 0:75ec1b3cde17 18
Geremia 0:75ec1b3cde17 19 #ifdef STMPORTDEBUG
Geremia 0:75ec1b3cde17 20 // create a port obj with STM HAL drivers, just to collect memorymapped regs
Geremia 0:75ec1b3cde17 21 void PAR8::findport(PortName port)
Geremia 0:75ec1b3cde17 22 {
Geremia 0:75ec1b3cde17 23 port_t tempport;
Geremia 0:75ec1b3cde17 24 port_init(&tempport, port, 0xFF, PIN_INPUT);
Geremia 0:75ec1b3cde17 25 outreg = tempport.reg_out;
Geremia 0:75ec1b3cde17 26 inreg = tempport.reg_in;
Geremia 0:75ec1b3cde17 27 // debug("out 0x%.8X in 0x%.8X\r\n", outreg, inreg);
Geremia 0:75ec1b3cde17 28 }
Geremia 0:75ec1b3cde17 29 #endif
Geremia 0:75ec1b3cde17 30 void PAR8::wr_cmd(unsigned char cmd)
Geremia 0:75ec1b3cde17 31 {
Geremia 0:75ec1b3cde17 32 #ifdef USE_CS
Geremia 0:75ec1b3cde17 33 _CS = 0;
Geremia 0:75ec1b3cde17 34 #endif
Geremia 0:75ec1b3cde17 35 _DC = 0; // 0=cmd
Geremia 0:75ec1b3cde17 36 _WR=0;
Geremia 0:75ec1b3cde17 37 _port.write(cmd); // write 8bit
Geremia 0:75ec1b3cde17 38 _WR=1;
Geremia 0:75ec1b3cde17 39 #ifdef USE_CS
Geremia 0:75ec1b3cde17 40 _CS = 1;
Geremia 0:75ec1b3cde17 41 #endif
Geremia 0:75ec1b3cde17 42 }
Geremia 0:75ec1b3cde17 43 void PAR8::wr_data8(unsigned char data8)
Geremia 0:75ec1b3cde17 44 {
Geremia 0:75ec1b3cde17 45 #ifdef USE_CS
Geremia 0:75ec1b3cde17 46 _CS = 0;
Geremia 0:75ec1b3cde17 47 #endif
Geremia 0:75ec1b3cde17 48 _DC = 1; // 1=data
Geremia 0:75ec1b3cde17 49 _WR=0;
Geremia 0:75ec1b3cde17 50 _port.write(data8); // write 8bit
Geremia 0:75ec1b3cde17 51 _WR=1;
Geremia 0:75ec1b3cde17 52 #ifdef USE_CS
Geremia 0:75ec1b3cde17 53 _CS = 1;
Geremia 0:75ec1b3cde17 54 #endif
Geremia 0:75ec1b3cde17 55 }
Geremia 0:75ec1b3cde17 56 void PAR8::wr_data8(unsigned char data8, unsigned int count)
Geremia 0:75ec1b3cde17 57 {
Geremia 0:75ec1b3cde17 58 #ifdef USE_CS
Geremia 0:75ec1b3cde17 59 _CS = 0;
Geremia 0:75ec1b3cde17 60 #endif
Geremia 0:75ec1b3cde17 61 _DC = 1; // 1=data
Geremia 0:75ec1b3cde17 62 _port.write(data8); // write 8bit
Geremia 0:75ec1b3cde17 63 while(count)
Geremia 0:75ec1b3cde17 64 {
Geremia 0:75ec1b3cde17 65 _WR=0;
Geremia 0:75ec1b3cde17 66 // _WR=0;
Geremia 0:75ec1b3cde17 67 _WR=1;
Geremia 0:75ec1b3cde17 68 count--;
Geremia 0:75ec1b3cde17 69 }
Geremia 0:75ec1b3cde17 70 #ifdef USE_CS
Geremia 0:75ec1b3cde17 71 _CS = 1;
Geremia 0:75ec1b3cde17 72 #endif
Geremia 0:75ec1b3cde17 73 }
Geremia 0:75ec1b3cde17 74 void PAR8::wr_data8buf(unsigned char* data8, unsigned int lenght)
Geremia 0:75ec1b3cde17 75 {
Geremia 0:75ec1b3cde17 76 #ifdef USE_CS
Geremia 0:75ec1b3cde17 77 _CS = 0;
Geremia 0:75ec1b3cde17 78 #endif
Geremia 0:75ec1b3cde17 79 _DC = 1; // 1=data
Geremia 0:75ec1b3cde17 80 while(lenght)
Geremia 0:75ec1b3cde17 81 {
Geremia 0:75ec1b3cde17 82 _WR=0;
Geremia 0:75ec1b3cde17 83 _port.write(*data8++); // write 8bit
Geremia 0:75ec1b3cde17 84 _WR=1;
Geremia 0:75ec1b3cde17 85 lenght--;
Geremia 0:75ec1b3cde17 86 }
Geremia 0:75ec1b3cde17 87 #ifdef USE_CS
Geremia 0:75ec1b3cde17 88 _CS = 1;
Geremia 0:75ec1b3cde17 89 #endif
Geremia 0:75ec1b3cde17 90 }
Geremia 0:75ec1b3cde17 91 void PAR8::hw_reset()
Geremia 0:75ec1b3cde17 92 {
Geremia 0:75ec1b3cde17 93 wait_ms(15);
Geremia 0:75ec1b3cde17 94 _DC = 1;
Geremia 0:75ec1b3cde17 95 _CS = 1;
Geremia 0:75ec1b3cde17 96 _WR = 1;
Geremia 0:75ec1b3cde17 97 _RD = 1;
Geremia 0:75ec1b3cde17 98 _reset = 0; // display reset
Geremia 0:75ec1b3cde17 99 wait_us(50);
Geremia 0:75ec1b3cde17 100 _reset = 1; // end reset
Geremia 0:75ec1b3cde17 101 wait_ms(15);
Geremia 0:75ec1b3cde17 102 #ifndef USE_CS
Geremia 0:75ec1b3cde17 103 _CS=0; // put CS low now and forever
Geremia 0:75ec1b3cde17 104 #endif
Geremia 0:75ec1b3cde17 105 }
Geremia 0:75ec1b3cde17 106 void PAR8::BusEnable(bool enable)
Geremia 0:75ec1b3cde17 107 {
Geremia 0:75ec1b3cde17 108 _CS = enable ? 0:1;
Geremia 0:75ec1b3cde17 109 }