UVSG Satellite Data - Revision history

AriX: Fix bad checksum in example color ad command

2020-05-09T05:56:54Z

Fix bad checksum in example color ad command

AriX: Ad command updtes

2020-05-09T05:47:15Z

Ad command updtes

AriX: K does work on version 9, if ClockCmd is set to 2

2020-05-09T05:42:44Z

K does work on version 9, if ClockCmd is set to 2

AriX: Undo revision 2825 by AriX (talk)

2020-05-09T05:42:14Z

Undo revision 2825 by AriX (talk)

AriX: K does work on version 9, if ClockCmd is set to 2

2020-05-09T05:40:05Z

K does work on version 9, if ClockCmd is set to 2

AriX: Added local add command documentation

2020-05-09T05:38:23Z

Added local add command documentation

Tin at 22:16, 27 April 2020

2020-04-27T22:16:07Z

Tin: /* DATA Format */

2020-04-27T21:43:00Z

DATA Format

Tin at 17:32, 27 April 2020

2020-04-27T17:32:22Z

Tin at 17:06, 27 April 2020

2020-04-27T17:06:50Z

@@ Line 430: / Line 430: @@
 Example:
-AA 74 04 18 03 36 33 50 72 65 76 75 65 20 03 35 34 46 69 72 73 74 21 00 D1
+AA 74 05 18 03 36 33 50 72 65 76 75 65 20 03 35 34 46 69 72 73 74 21 00 E8
 '''NOTE:''' The 't' command and 'L' command are identical and handled the same by ESQ. Using 't' as the command byte instead of 'L' guarantees that color ads are not received by older software that doesn't support color ads (like Atari), since older software doesn't recognize the 't' command.

@@ Line 137: / Line 137: @@
 | Local text (aka Local Ad)
 | Centrally provides an ad or message
-| Seems to crash Prevue Grid if there is already ad in a slot, maybe bad syntax
 | Yes
 | Yes
@@ Line 206: / Line 206: @@
 !scope="row"| t
 | Color Local Ad
-| ?
+| Provides local ad data (identical to mode L, but unsupported on older software)
+|
 | No
@@ Line 390: / Line 390: @@
 AA 4C 01 18 42 45 46 4F 52 45 20 59 4F 55 20 56 49 45 57 2C 20 50 52 45 56 55 45 21 00 D1
-The following text alignment bytes are supported: 0x18 (CTRL-X) for center, 0x19 (CTRL-Y) for left-aligned, and 0x1A (CTRL-Z) for right-aligned. A new text alignment byte must be included for each new line. Additionally, on EPG Sr., the byte 0x0B (CTRL-K) is used to indicate that the ad should be used as a crawl ad instead of a scroll add.
+The optional 0x14 (CTRL-T) sequence allows the command to limit the timeslots in which the ad appears. This is supported on Amiga only, and ignored on Atari.
 '''NOTE:''' Sending 0x92 in place of the ad number causes all text ads to be reset. Example:
 AA 4C 92 00 21
 ==== t Command Syntax ====
@@ Line 412: / Line 434: @@
 '''NOTE:''' The 't' command and 'L' command are identical and handled the same by ESQ. Using 't' as the command byte instead of 'L' guarantees that color ads are not received by older software that doesn't support color ads (like Atari), since older software doesn't recognize the 't' command.
-==== t Commmand Colors ====
+===== t Commmand Colors =====
 {| border="1" cellspacing="0" cellpadding="2"

@@ Line 130: / Line 130: @@
 | Clock
 | Sets the time centrally
-| Requires ClockCmd to be 2 on Amiga. Does not work on version 9
+| Requires ClockCmd to be 2 on Amiga version 9
 | Yes
 | Yes

@@ Line 14: / Line 14: @@
 ===Initial Checksum===
-Most commands have a checksum that is calculated on all the bytes of the data part of the command. This is sent over the serial port and compared to the correct value by the receiving machine. If the checksum does not match, the computer discards the whole command. The checksum is calculated by bitwise XOR of each byte of data within the command excluding the command letter itself. Each command has its own seed checksum which is loaded as the initial value of the checksum as soon as the initial command letter is received. This initial checksum is calculated by XORing the mode byte with $FF.
+Most commands have a checksum that is calculated on all the bytes of the data part of the command. This is sent over the serial port and compared to the correct value by the receiving machine. If the checksum does not match, the computer discards the whole command. The checksum is calculated by bitwise XOR of each byte of data within the command INCLUDING the 55 AA training and the ASCII value of the command letter. However at least in the Atari code, the 55 AA and command letter are not checksummed, instead the code is seeded with the value that would be arrived at if that calculation had been performed.
 ===Command Modes===
@@ Line 130: / Line 130: @@
 | Clock
 | Sets the time centrally
-| Requires ClockCmd to be 2 on Amiga version 9
+| Requires ClockCmd to be 2 on Amiga. Does not work on version 9
 | Yes
 | Yes
@@ Line 377: / Line 377: @@
 | PREVDAYSDATA
 | 0x80
 |}

@@ Line 14: / Line 14: @@
 ===Initial Checksum===
-Most commands have a checksum that is calculated on all the bytes of the data part of the command. This is sent over the serial port and compared to the correct value by the receiving machine. If the checksum does not match, the computer discards the whole command. The checksum is calculated by bitwise XOR of each byte of data within the command INCLUDING the 55 AA training and the ASCII value of the command letter. However at least in the Atari code, the 55 AA and command letter are not checksummed, instead the code is seeded with the value that would be arrived at if that calculation had been performed.
+Most commands have a checksum that is calculated on all the bytes of the data part of the command. This is sent over the serial port and compared to the correct value by the receiving machine. If the checksum does not match, the computer discards the whole command. The checksum is calculated by bitwise XOR of each byte of data within the command excluding the command letter itself. Each command has its own seed checksum which is loaded as the initial value of the checksum as soon as the initial command letter is received. This initial checksum is calculated by XORing the mode byte with $FF.
 ===Command Modes===
@@ Line 130: / Line 130: @@
 | Clock
 | Sets the time centrally
-| Requires ClockCmd to be 2 on Amiga. Does not work on version 9
+| Requires ClockCmd to be 2 on Amiga version 9
 | Yes
 | Yes
@@ Line 377: / Line 377: @@
 | PREVDAYSDATA
 | 0x80
 |}

@@ Line 37: / Line 37: @@
 |-
 !scope="row"| C
-| Channel
+| Channel lineup
 | Contains the channel lineup
 | Divided by the receiving machine into a list of channel numbers, call letters, and sources.
@@ Line 44: / Line 44: @@
 |-
 !scope="row"| c
+|
+|
 | No
 | Yes
 |-
 !scope="row"| D
-| ?
+| Diagnostic mode
 | ?
 | ?
@@ Line 72: / Line 72: @@
 |-
 !scope="row"| f
-| Config.dat
+| new look config
 | Provides some settings, like GridMR, Sport, SBS, ClockCmd, and more that are written to config.dat.
 | Length specified in first byte of command.
@@ Line 79: / Line 79: @@
 |-
 !scope="row"| g
-| ?
+| new local config avail
-| Defines future DST information
+| also defines future DST information
+|
 | No
@@ Line 100: / Line 100: @@
 |-
 !scope="row"| I
-| ?
+| Weather ID
+|
-| Sets weather ID?
+| Sets weather ID
 | No
 | Yes
@@ Line 135: / Line 135: @@
 |-
 !scope="row"| L
-| Ad
+| Local text (aka Local Ad)
 | Centrally provides an ad or message
 | Seems to crash Prevue Grid if there is already ad in a slot, maybe bad syntax
@@ Line 142: / Line 142: @@
 |-
 !scope="row"| M
-| ?
+| Mode
 | ?
 | Atari L9152 (reads 2 bytes) - on Amiga, reads 0 bytes and does NOTHING but increment the Cmds count
@@ Line 156: / Line 156: @@
 |-
 !scope="row"| O
-| Clear Listings
+| Reset Blackout
 | Clears program listings - but not immediately?
 | Reads 0 bytes - send 00 B0 after
@@ Line 163: / Line 163: @@
 |-
 !scope="row"| P
-| Program
+| Program info
 | Program information
+|
@@ Line 170: / Line 170: @@
 |-
 !scope="row"| p
-| Program
+| Program attribute
 | Program information
 | Possibly newer format, example in NEWP test file
@@ Line 189: / Line 189: @@
 | Yes
 | Yes
 |-
 !scope="row"| T
@@ Line 198: / Line 205: @@
 |-
 !scope="row"| t
-| ?
+| Color Local Ad
 | ?
+|
@@ Line 205: / Line 212: @@
 |-
 !scope="row"| V
-| ?
+| Version
 | ?
 | Software upgrade/version check mechanism?
@@ Line 212: / Line 219: @@
 |-
 !scope="row"| v
 | ?
-| ?
 | No
 | Yes
 |-
 !scope="row"| W
-| ?
+| Weather Data
 | ?
+|
@@ Line 233: / Line 240: @@
 |-
 !scope="row"| x
-| ?
+| "x command"
 | ?
 | Has sub-commands?
@@ Line 266: / Line 273: @@
 | No
 | Yes
 |-
 !scope="row"| = ($3D)

@@ Line 46: / Line 46: @@
+|
+|
-| New format of channel?
+| Source Attributes
 | No
 | Yes
@@ Line 214: / Line 214: @@
 | ?
 | ?
+| PPV info
 | No
 | Yes