Home » Archimedes archive » Acorn User » AU 1998-10.adf » Features » SSTV/!PSinstall/PscanFiles/Extras/Monitors/!ReadMe

SSTV/!PSinstall/PscanFiles/Extras/Monitors/!ReadMe

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Archimedes archive » Acorn User » AU 1998-10.adf » Features
Filename: SSTV/!PSinstall/PscanFiles/Extras/Monitors/!ReadMe
Read OK:
File size: 074B bytes
Load address: 0000
Exec address: 0000
File contents
Monitor definition files for use with PSCAN
*******************************************

PSCAN has to run in a screen mode of 640 pixels by 512 lines with
32 thousand colours. Depending on your monitor, you may have to install
a replacement monitor definition file to use this screen mode.

If using an Acorn AKF60 monitor, install the replacement AKF60 monitor
definition file as described in the PSCAN manual.

The Acorn AKF50 and AKF52 monitor definition files already support screen
modes of 640 x 512, so no change is necessary.

Other monitors:-

If you know the maximum and minimum line and frame rates for your monitor,
you should be able to append either the 640x512a or 640x512b files to your
existing monitor definition file. The MonList file contains the line and
frame rates for a large number of monitors.

The 640x512a file was designed for use on the AKF60 but can be used with
other monitors as long as they support a line rate of at least 41.86 KHz and
a frame rate of 78 Hz.

The 640x512b file is less demanding, requiring a monitor that supports at
least a 32.863 KHz line rate and a 60 Hz frame rate.

To use either file it must be appended to your existing MDF, which you
should find located inside a directory with the following pathname:-

ADFS::HardDisc4.$.!Boot.Resources.Configure.Monitors.Acorn

Inside this directory you should see text files called AKF50, AKF52, AKF60
and AKF85. If you are not using an Acorn monitor you may have additional
files, possibly inside a directory inside the Monitors directory.

Drag your existing MDF file into Edit. Move the caret to the end of the
document. Drag the required 640x512 text file into the Edit window
displaying the MDF file. The files will be merged and the updated MDF can be
saved back on to your hard drive.

Contact G4IJE if you have any problems or queries.


*** G4IJE 22.10.97 ***
00000000  0a 4d 6f 6e 69 74 6f 72  20 64 65 66 69 6e 69 74  |.Monitor definit|
00000010  69 6f 6e 20 66 69 6c 65  73 20 66 6f 72 20 75 73  |ion files for us|
00000020  65 20 77 69 74 68 20 50  53 43 41 4e 0a 2a 2a 2a  |e with PSCAN.***|
00000030  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000050  2a 2a 2a 2a 2a 2a 2a 2a  0a 0a 50 53 43 41 4e 20  |********..PSCAN |
00000060  68 61 73 20 74 6f 20 72  75 6e 20 69 6e 20 61 20  |has to run in a |
00000070  73 63 72 65 65 6e 20 6d  6f 64 65 20 6f 66 20 36  |screen mode of 6|
00000080  34 30 20 70 69 78 65 6c  73 20 62 79 20 35 31 32  |40 pixels by 512|
00000090  20 6c 69 6e 65 73 20 77  69 74 68 0a 33 32 20 74  | lines with.32 t|
000000a0  68 6f 75 73 61 6e 64 20  63 6f 6c 6f 75 72 73 2e  |housand colours.|
000000b0  20 44 65 70 65 6e 64 69  6e 67 20 6f 6e 20 79 6f  | Depending on yo|
000000c0  75 72 20 6d 6f 6e 69 74  6f 72 2c 20 79 6f 75 20  |ur monitor, you |
000000d0  6d 61 79 20 68 61 76 65  20 74 6f 20 69 6e 73 74  |may have to inst|
000000e0  61 6c 6c 0a 61 20 72 65  70 6c 61 63 65 6d 65 6e  |all.a replacemen|
000000f0  74 20 6d 6f 6e 69 74 6f  72 20 64 65 66 69 6e 69  |t monitor defini|
00000100  74 69 6f 6e 20 66 69 6c  65 20 74 6f 20 75 73 65  |tion file to use|
00000110  20 74 68 69 73 20 73 63  72 65 65 6e 20 6d 6f 64  | this screen mod|
00000120  65 2e 0a 0a 49 66 20 75  73 69 6e 67 20 61 6e 20  |e...If using an |
00000130  41 63 6f 72 6e 20 41 4b  46 36 30 20 6d 6f 6e 69  |Acorn AKF60 moni|
00000140  74 6f 72 2c 20 69 6e 73  74 61 6c 6c 20 74 68 65  |tor, install the|
00000150  20 72 65 70 6c 61 63 65  6d 65 6e 74 20 41 4b 46  | replacement AKF|
00000160  36 30 20 6d 6f 6e 69 74  6f 72 0a 64 65 66 69 6e  |60 monitor.defin|
00000170  69 74 69 6f 6e 20 66 69  6c 65 20 61 73 20 64 65  |ition file as de|
00000180  73 63 72 69 62 65 64 20  69 6e 20 74 68 65 20 50  |scribed in the P|
00000190  53 43 41 4e 20 6d 61 6e  75 61 6c 2e 0a 0a 54 68  |SCAN manual...Th|
000001a0  65 20 41 63 6f 72 6e 20  41 4b 46 35 30 20 61 6e  |e Acorn AKF50 an|
000001b0  64 20 41 4b 46 35 32 20  6d 6f 6e 69 74 6f 72 20  |d AKF52 monitor |
000001c0  64 65 66 69 6e 69 74 69  6f 6e 20 66 69 6c 65 73  |definition files|
000001d0  20 61 6c 72 65 61 64 79  20 73 75 70 70 6f 72 74  | already support|
000001e0  20 73 63 72 65 65 6e 0a  6d 6f 64 65 73 20 6f 66  | screen.modes of|
000001f0  20 36 34 30 20 78 20 35  31 32 2c 20 73 6f 20 6e  | 640 x 512, so n|
00000200  6f 20 63 68 61 6e 67 65  20 69 73 20 6e 65 63 65  |o change is nece|
00000210  73 73 61 72 79 2e 0a 0a  4f 74 68 65 72 20 6d 6f  |ssary...Other mo|
00000220  6e 69 74 6f 72 73 3a 2d  0a 0a 49 66 20 79 6f 75  |nitors:-..If you|
00000230  20 6b 6e 6f 77 20 74 68  65 20 6d 61 78 69 6d 75  | know the maximu|
00000240  6d 20 61 6e 64 20 6d 69  6e 69 6d 75 6d 20 6c 69  |m and minimum li|
00000250  6e 65 20 61 6e 64 20 66  72 61 6d 65 20 72 61 74  |ne and frame rat|
00000260  65 73 20 66 6f 72 20 79  6f 75 72 20 6d 6f 6e 69  |es for your moni|
00000270  74 6f 72 2c 0a 79 6f 75  20 73 68 6f 75 6c 64 20  |tor,.you should |
00000280  62 65 20 61 62 6c 65 20  74 6f 20 61 70 70 65 6e  |be able to appen|
00000290  64 20 65 69 74 68 65 72  20 74 68 65 20 36 34 30  |d either the 640|
000002a0  78 35 31 32 61 20 6f 72  20 36 34 30 78 35 31 32  |x512a or 640x512|
000002b0  62 20 66 69 6c 65 73 20  74 6f 20 79 6f 75 72 0a  |b files to your.|
000002c0  65 78 69 73 74 69 6e 67  20 6d 6f 6e 69 74 6f 72  |existing monitor|
000002d0  20 64 65 66 69 6e 69 74  69 6f 6e 20 66 69 6c 65  | definition file|
000002e0  2e 20 54 68 65 20 4d 6f  6e 4c 69 73 74 20 66 69  |. The MonList fi|
000002f0  6c 65 20 63 6f 6e 74 61  69 6e 73 20 74 68 65 20  |le contains the |
00000300  6c 69 6e 65 20 61 6e 64  0a 66 72 61 6d 65 20 72  |line and.frame r|
00000310  61 74 65 73 20 66 6f 72  20 61 20 6c 61 72 67 65  |ates for a large|
00000320  20 6e 75 6d 62 65 72 20  6f 66 20 6d 6f 6e 69 74  | number of monit|
00000330  6f 72 73 2e 0a 0a 54 68  65 20 36 34 30 78 35 31  |ors...The 640x51|
00000340  32 61 20 66 69 6c 65 20  77 61 73 20 64 65 73 69  |2a file was desi|
00000350  67 6e 65 64 20 66 6f 72  20 75 73 65 20 6f 6e 20  |gned for use on |
00000360  74 68 65 20 41 4b 46 36  30 20 62 75 74 20 63 61  |the AKF60 but ca|
00000370  6e 20 62 65 20 75 73 65  64 20 77 69 74 68 0a 6f  |n be used with.o|
00000380  74 68 65 72 20 6d 6f 6e  69 74 6f 72 73 20 61 73  |ther monitors as|
00000390  20 6c 6f 6e 67 20 61 73  20 74 68 65 79 20 73 75  | long as they su|
000003a0  70 70 6f 72 74 20 61 20  6c 69 6e 65 20 72 61 74  |pport a line rat|
000003b0  65 20 6f 66 20 61 74 20  6c 65 61 73 74 20 34 31  |e of at least 41|
000003c0  2e 38 36 20 4b 48 7a 20  61 6e 64 0a 61 20 66 72  |.86 KHz and.a fr|
000003d0  61 6d 65 20 72 61 74 65  20 6f 66 20 37 38 20 48  |ame rate of 78 H|
000003e0  7a 2e 0a 0a 54 68 65 20  36 34 30 78 35 31 32 62  |z...The 640x512b|
000003f0  20 66 69 6c 65 20 69 73  20 6c 65 73 73 20 64 65  | file is less de|
00000400  6d 61 6e 64 69 6e 67 2c  20 72 65 71 75 69 72 69  |manding, requiri|
00000410  6e 67 20 61 20 6d 6f 6e  69 74 6f 72 20 74 68 61  |ng a monitor tha|
00000420  74 20 73 75 70 70 6f 72  74 73 20 61 74 0a 6c 65  |t supports at.le|
00000430  61 73 74 20 61 20 33 32  2e 38 36 33 20 4b 48 7a  |ast a 32.863 KHz|
00000440  20 6c 69 6e 65 20 72 61  74 65 20 61 6e 64 20 61  | line rate and a|
00000450  20 36 30 20 48 7a 20 66  72 61 6d 65 20 72 61 74  | 60 Hz frame rat|
00000460  65 2e 0a 0a 54 6f 20 75  73 65 20 65 69 74 68 65  |e...To use eithe|
00000470  72 20 66 69 6c 65 20 69  74 20 6d 75 73 74 20 62  |r file it must b|
00000480  65 20 61 70 70 65 6e 64  65 64 20 74 6f 20 79 6f  |e appended to yo|
00000490  75 72 20 65 78 69 73 74  69 6e 67 20 4d 44 46 2c  |ur existing MDF,|
000004a0  20 77 68 69 63 68 20 79  6f 75 0a 73 68 6f 75 6c  | which you.shoul|
000004b0  64 20 66 69 6e 64 20 6c  6f 63 61 74 65 64 20 69  |d find located i|
000004c0  6e 73 69 64 65 20 61 20  64 69 72 65 63 74 6f 72  |nside a director|
000004d0  79 20 77 69 74 68 20 74  68 65 20 66 6f 6c 6c 6f  |y with the follo|
000004e0  77 69 6e 67 20 70 61 74  68 6e 61 6d 65 3a 2d 0a  |wing pathname:-.|
000004f0  0a 41 44 46 53 3a 3a 48  61 72 64 44 69 73 63 34  |.ADFS::HardDisc4|
00000500  2e 24 2e 21 42 6f 6f 74  2e 52 65 73 6f 75 72 63  |.$.!Boot.Resourc|
00000510  65 73 2e 43 6f 6e 66 69  67 75 72 65 2e 4d 6f 6e  |es.Configure.Mon|
00000520  69 74 6f 72 73 2e 41 63  6f 72 6e 0a 0a 49 6e 73  |itors.Acorn..Ins|
00000530  69 64 65 20 74 68 69 73  20 64 69 72 65 63 74 6f  |ide this directo|
00000540  72 79 20 79 6f 75 20 73  68 6f 75 6c 64 20 73 65  |ry you should se|
00000550  65 20 74 65 78 74 20 66  69 6c 65 73 20 63 61 6c  |e text files cal|
00000560  6c 65 64 20 41 4b 46 35  30 2c 20 41 4b 46 35 32  |led AKF50, AKF52|
00000570  2c 20 41 4b 46 36 30 0a  61 6e 64 20 41 4b 46 38  |, AKF60.and AKF8|
00000580  35 2e 20 49 66 20 79 6f  75 20 61 72 65 20 6e 6f  |5. If you are no|
00000590  74 20 75 73 69 6e 67 20  61 6e 20 41 63 6f 72 6e  |t using an Acorn|
000005a0  20 6d 6f 6e 69 74 6f 72  20 79 6f 75 20 6d 61 79  | monitor you may|
000005b0  20 68 61 76 65 20 61 64  64 69 74 69 6f 6e 61 6c  | have additional|
000005c0  0a 66 69 6c 65 73 2c 20  70 6f 73 73 69 62 6c 79  |.files, possibly|
000005d0  20 69 6e 73 69 64 65 20  61 20 64 69 72 65 63 74  | inside a direct|
000005e0  6f 72 79 20 69 6e 73 69  64 65 20 74 68 65 20 4d  |ory inside the M|
000005f0  6f 6e 69 74 6f 72 73 20  64 69 72 65 63 74 6f 72  |onitors director|
00000600  79 2e 0a 0a 44 72 61 67  20 79 6f 75 72 20 65 78  |y...Drag your ex|
00000610  69 73 74 69 6e 67 20 4d  44 46 20 66 69 6c 65 20  |isting MDF file |
00000620  69 6e 74 6f 20 45 64 69  74 2e 20 4d 6f 76 65 20  |into Edit. Move |
00000630  74 68 65 20 63 61 72 65  74 20 74 6f 20 74 68 65  |the caret to the|
00000640  20 65 6e 64 20 6f 66 20  74 68 65 0a 64 6f 63 75  | end of the.docu|
00000650  6d 65 6e 74 2e 20 44 72  61 67 20 74 68 65 20 72  |ment. Drag the r|
00000660  65 71 75 69 72 65 64 20  36 34 30 78 35 31 32 20  |equired 640x512 |
00000670  74 65 78 74 20 66 69 6c  65 20 69 6e 74 6f 20 74  |text file into t|
00000680  68 65 20 45 64 69 74 20  77 69 6e 64 6f 77 0a 64  |he Edit window.d|
00000690  69 73 70 6c 61 79 69 6e  67 20 74 68 65 20 4d 44  |isplaying the MD|
000006a0  46 20 66 69 6c 65 2e 20  54 68 65 20 66 69 6c 65  |F file. The file|
000006b0  73 20 77 69 6c 6c 20 62  65 20 6d 65 72 67 65 64  |s will be merged|
000006c0  20 61 6e 64 20 74 68 65  20 75 70 64 61 74 65 64  | and the updated|
000006d0  20 4d 44 46 20 63 61 6e  20 62 65 0a 73 61 76 65  | MDF can be.save|
000006e0  64 20 62 61 63 6b 20 6f  6e 20 74 6f 20 79 6f 75  |d back on to you|
000006f0  72 20 68 61 72 64 20 64  72 69 76 65 2e 0a 0a 43  |r hard drive...C|
00000700  6f 6e 74 61 63 74 20 47  34 49 4a 45 20 69 66 20  |ontact G4IJE if |
00000710  79 6f 75 20 68 61 76 65  20 61 6e 79 20 70 72 6f  |you have any pro|
00000720  62 6c 65 6d 73 20 6f 72  20 71 75 65 72 69 65 73  |blems or queries|
00000730  2e 0a 0a 0a 2a 2a 2a 20  47 34 49 4a 45 20 32 32  |....*** G4IJE 22|
00000740  2e 31 30 2e 39 37 20 2a  2a 2a 0a                 |.10.97 ***.|
0000074b