1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/***************************************************************************
* Copyright (C) 2003-2005 Alain Gibaud <alain.gibaud@free.fr> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#include "direct_18.h"
// Commands specific to 18F:
// xhh = send a 8 bits constant (hh must be a 2 digits hex constant)
// Xhhhh = send a 16 bits constant (hhhh must be a 4 digits hex constant)
bool Direct::P18::pulse(const char *&cmd, BitValue value, BitValue &res)
{
switch (*cmd) {
case 'x': {
uint n;
sscanf(++cmd, "%02X", &n);
++cmd;
log(Log::DebugLevel::Max, "SEND 1 byte constant : " + toHexLabel(n, 2));
send_bits(n, 8);
break;
}
case 'X': {
uint n;
sscanf(++cmd,"%04X", &n);
cmd += 3;
log(Log::DebugLevel::Max, "SEND 2 bytes constant : " + toHexLabel(n, 4));
send_bits(n, 16);
break;
}
default: return Pic8DeviceSpecific::pulse(cmd, value, res);
}
return true;
}
void Direct::P18::send_word(BitValue d)
{
hardware().setWrite();
for (uint x = 0; x<16; x++) {
hardware().setPin(Clock, High);
if ( d.bit(0) ) hardware().setPin(DataOut, High);
else hardware().setPin(DataOut, Low);
Port::usleep(_clockDelay+5);
hardware().setPin(Clock, Low);
Port::usleep(_clockDelay+3);
d >>= 1; // Move the data over 1 bit
}
hardware().setPin(DataOut, High);
hardware().setRead();
}
BitValue Direct::P18::get_word()
{
hardware().setRead();
BitValue ind = 0;
send_cmd(9);
hardware().setPin(DataOut, High);
for (uint x = 0; x<16; x++) {
hardware().setPin(Clock, High);
Port::usleep(_clockDelay+5);
if ( x>7 && hardware().readBit() ) ind |= (1 << x-8);
hardware().setPin(Clock, Low);
Port::usleep(_clockDelay+3);
}
send_cmd(9);
hardware().setPin(DataOut, High);
for (uint x = 0; x<16; x++) {
hardware().setPin(Clock, High);
Port::usleep(_clockDelay+5);
if ( x>7 && hardware().readBit() ) ind |= (1 << x);
hardware().setPin(Clock, Low);
Port::usleep(_clockDelay+3);
}
return ind;
}
BitValue Direct::P18::get_byte()
{
hardware().setRead();
BitValue ind = 0;
send_cmd(2);
hardware().setPin(DataOut, High);
for (uint x = 0; x<16; x++) {
hardware().setPin(Clock, High);
Port::usleep(_clockDelay+5);
if ( x>7 && hardware().readBit() ) ind |= (1 << x-8);
hardware().setPin(Clock, Low);
Port::usleep(_clockDelay+3);
}
return ind;
}
void Direct::P18::send_bits(BitValue d, uint nbb)
{
hardware().setWrite();
for (int x = nbb; x; --x) {
hardware().setPin(Clock, High);
if ( d.bit(0) ) hardware().setPin(DataOut, High);
else hardware().setPin(DataOut, Low);
Port::usleep(_clockDelay+5);
hardware().setPin(Clock, Low);
Port::usleep(_clockDelay+3);
d >>= 1; // Move the data over 1 bit
}
hardware().setPin(DataOut, High);
hardware().setRead();
}
|
