-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathVGA-AdjTimings.spin2
118 lines (95 loc) · 3.7 KB
/
VGA-AdjTimings.spin2
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
110
111
112
113
114
115
116
117
118
{
----------------------------------------------------------------------------------------------------
Filename: VGA-AdjTimings.spin2
Description: Utility for adjusting VGA driver display timings while displaying a
simple test pattern
Author: Jesse Burt
Started: Jun 21, 2020
Updated: Sep 6, 2024
Copyright (c) 2024 - See end of file for terms of use.
----------------------------------------------------------------------------------------------------
}
CON
_clkfreq = 180_000_000
_xtlfreq = 20_000_000
OBJ
ser: "com.serial.terminal.ansi" | SER_BAUD=2_000_000
vga: "display.vga.bitmap-8bpp" | BASEPIN=32, VF=10, VB=33, HF=16, HS=96, HB=48, HV=640, ...
INTENSITY=127
' NOTE: Timings can also be changed with set_timings() (before calling driver start() )
PUB main() | ch, vf, vb, hf, hs, hb, hv
vf := vga.VF
vb := vga.VB
hf := vga.HF
hs := vga.HS
hb := vga.HB
hv := vga.HV
setup()
vga.clear()
ser.pos_xy(0, 3)
ser.strln(@"Keys:")
ser.strln(@" VF VB HF HS HB HV")
ser.strln(@"+ q w e r t y")
ser.strln(@"- a s d f g h")
ser.strln(@"<SPACE> resets all to defaults")
repeat
vga.box(0, 0, vga.XMAX, vga.YMAX, 255)
vga.line(0, 0, vga.XMAX, vga.YMAX, 255)
vga.line(vga.XMAX, 0, 0, vga.YMAX, 255)
vga.circle(vga.CENTERX, vga.CENTERY, vga.YMAX/2, 255)
ser.pos_xy(0, 10)
ser.printf(@"vga.set_timings(%d, %d, %d, %d, %d, %d)", vf, vb, hf, hs, hb, hv)
case ser.getchar()
"q": vf++
"a": vf--
"w": vb++
"s": vb--
"e": hf++
"d": hf--
"r": hs++
"f": hs--
"t": hb++
"g": hb--
"y": hv++
"h": hv--
" ":
vf := vga.VF
vb := vga.VB
hf := vga.HF
hs := vga.HS
hb := vga.HB
hv := vga.HV
other:
next
{ timings are read on driver startup - re-cycle the driver
when changes are made }
vga.stop()
vga.set_timings(vf, vb, hf, hs, hb, hv)
vga.start()
vga.wait_vsync()
vga.show()
repeat
PUB setup()
ser.start()
ser.clear()
ser.printf(@"Serial terminal started - p2 @ %dMHz\n\r", (clkfreq/1000000))
vga.defaults() ' *** must be called before starting the driver
vga.start()
ser.strln(@"VGA 8bpp driver started")
vga.clear()
DAT
{
Copyright 2024 Jesse Burt
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
}