TransEra 641-RTC: Difference between revisions

From TekWiki
Jump to navigation Jump to search
(removed wrong picture)
(Added 1978 firmware revision)
Line 7: Line 7:
|-
|-
! Command
! Command
! Rev 1
! Rev 2
! Description
! Description
|-
|-
! CALL "TIMSET", T
! CALL "TIMSET", T
! yes
! yes
| Sets the actual time. T must be a floating point number containing the count of seconds + fractions since the 01-01 of the current year.<br/>The resolution is 1/128 of a second.
| Sets the actual time. T must be a floating point number containing the count of seconds + fractions since the 01-01 of the current year.<br/>The resolution is 1/128 of a second.
|-
|-
! CALL "TIMSET",T$
! CALL "TIMSET",T$
! yes
! yes
| Sets the actual date & time. T$ must be a string in the format "MM-DD-YY HH:MM:SS".<br/>The time must be always given in 24h format.
| Sets the actual date & time. T$ must be a string in the format "MM-DD-YY HH:MM:SS".<br/>The time must be always given in 24h format.
|-
|-
! CALL "TIME",T
! CALL "TIME",T
! yes
! yes
| Returns the actual time. The result T is a floating point number and contains the count of seconds since 01-01 of the current year.<br/>The resolution is 1/128 of a second.
| Returns the actual time. The result T is a floating point number and contains the count of seconds since 01-01 of the current year.<br/>The resolution is 1/128 of a second.
|-
|-
! CALL "TIME",T$
! CALL "TIME",T$
! yes
! yes
| Returns the actual date & time. T$ contains a string in the format "WEK MM DD YY HH:MM:SS [AM/PM]".<br/>The string is formatted depending on previous calls of 24HOUR or 12HOUR.<br/>Examples:<br/>MON 07 MAR 21 4:15:20 PM<br/>MON 07 MAR 21 16:15:20<br/>Remark:<br/>As with all 4050 RTC modules the 641-RTC is not [[Year 2000 problem|Y2K]] compatible. So in this example the weekday of march, 7th, 1921 is returned.
| Returns the actual date & time. T$ contains a string in the format "WEK MM DD YY HH:MM:SS [AM/PM]".<br/>The string is formatted depending on previous calls of 24HOUR or 12HOUR.<br/>Examples:<br/>MON 07 MAR 21 4:15:20 PM<br/>MON 07 MAR 21 16:15:20<br/>Remark:<br/>As with all 4050 RTC modules the 641-RTC is not [[Year 2000 problem|Y2K]] compatible. So in this example the weekday of march, 7th, 1921 is returned.
|-
|-
! CALL "CLOCK",T$
! CALL "CLOCK",T$
! no
! yes
| Same as "TIME",T$ and "TIME",T
| Same as "TIME",T$ and "TIME",T
|-
|-
! CALL "PAUSE",T
! CALL "PAUSE",T
! yes
! yes
| Pauses the Program for T seconds. The parameter T must be an integer value.<br/>The maximum delay is 65535 seconds (~18hours)<br/>After the pause the program execution starts at the next line.
| Pauses the Program for T seconds. The parameter T must be an integer value.<br/>The maximum delay is 65535 seconds (~18hours)<br/>After the pause the program execution starts at the next line.
|-
|-
! CALL "TIMER",T,L
! CALL "TIMER",T,L
! yes
! yes
| Starts an asynchronous timer with the delay T and jumps to line L when the timer is done.<br/>The maximum delay is 65535 seconds (~18hours).<br/>The timer is not retriggered automatically.
| Starts an asynchronous timer with the delay T and jumps to line L when the timer is done.<br/>The maximum delay is 65535 seconds (~18hours).<br/>The timer is not retriggered automatically.
|-
|-
! CALL "12HOUR"
! CALL "12HOUR"
! no
! yes
| Sets the format of the returned time strings to 12-hour format.<br/>This is the default time format after a power-cycle.
| Sets the format of the returned time strings to 12-hour format.<br/>This is the default time format after a power-cycle.
|-
|-
! CALL "24HOUR"
! CALL "24HOUR"
! no
! yes
| Sets the format of the returned time strings to 24-hour format.
| Sets the format of the returned time strings to 24-hour format.
|}
|}
Line 69: Line 89:
! Description
! Description
|-
|-
| [[Media:TransEra-641-RTC-1984.bin|TransEra-641-RTC-1984.bin]] ([[:TransEra-641-RTC-1984.bin#filehistory|?]]) ||Original Firmware
| [[Media:TransEra-641-RTC-1978.bin|TransEra-641-RTC-1978.bin]] ([[:TransEra-641-RTC-1978.bin#filehistory|?]]) ||Original Firmware revision 1978
|-
|-
| [[Media:TE-rtc-641_y2k.bin|TE-rtc-641_y2k.bin]] ([[:TE-rtc-641_y2k.bin#filehistory|?]]) ||Modified Firmware for Y2k compatibility
| [[Media:TransEra-641-RTC-1984.bin|TransEra-641-RTC-1984.bin]] ([[:TransEra-641-RTC-1984.bin#filehistory|?]]) ||Original Firmware revision 1984
|-
| [[Media:TE-rtc-641_y2k.bin|TE-rtc-641_y2k.bin]] ([[:TE-rtc-641_y2k.bin#filehistory|?]]) ||Modified 1984 Firmware for Y2k compatibility
|}
|}
[[Category:ROM packs]]
[[Category:ROM packs]]

Revision as of 06:41, 1 May 2022

The TransEra 641 Real Time Clock ROM Pack (641-RTC) is a ROM pack for the 4051 microcomputer.


Command set

Command Rev 1 Rev 2 Description
CALL "TIMSET", T yes yes Sets the actual time. T must be a floating point number containing the count of seconds + fractions since the 01-01 of the current year.
The resolution is 1/128 of a second.
CALL "TIMSET",T$ yes yes Sets the actual date & time. T$ must be a string in the format "MM-DD-YY HH:MM:SS".
The time must be always given in 24h format.
CALL "TIME",T yes yes Returns the actual time. The result T is a floating point number and contains the count of seconds since 01-01 of the current year.
The resolution is 1/128 of a second.
CALL "TIME",T$ yes yes Returns the actual date & time. T$ contains a string in the format "WEK MM DD YY HH:MM:SS [AM/PM]".
The string is formatted depending on previous calls of 24HOUR or 12HOUR.
Examples:
MON 07 MAR 21 4:15:20 PM
MON 07 MAR 21 16:15:20
Remark:
As with all 4050 RTC modules the 641-RTC is not Y2K compatible. So in this example the weekday of march, 7th, 1921 is returned.
CALL "CLOCK",T$ no yes Same as "TIME",T$ and "TIME",T
CALL "PAUSE",T yes yes Pauses the Program for T seconds. The parameter T must be an integer value.
The maximum delay is 65535 seconds (~18hours)
After the pause the program execution starts at the next line.
CALL "TIMER",T,L yes yes Starts an asynchronous timer with the delay T and jumps to line L when the timer is done.
The maximum delay is 65535 seconds (~18hours).
The timer is not retriggered automatically.
CALL "12HOUR" no yes Sets the format of the returned time strings to 12-hour format.
This is the default time format after a power-cycle.
CALL "24HOUR" no yes Sets the format of the returned time strings to 24-hour format.

Revisions

At least 3 revisions were released. The first version came without a battery, so all time information was lost after a powercycle. The second revision added a battery for counting the seconds within the year. But the year information was still unprotected. The manual of the TransEra 741-RTC explicitly talks about a 741-RTC and a 641-RTC with identical command set. The command set in the manual differs from the command set of the units shown on this page. So a third hardware revision of the 641 should exist.

Pictures revision 1

  • Label view

    Label view

  • Top view of PCB

    Top view of PCB

  • Bottom view of PCB

    Bottom view of PCB

Pictures revision 2

  • Label view - Note: The first "TIMSET"-CALL is misspelled.

    Label view - Note: The first "TIMSET"-CALL is misspelled.

  • Front view

    Front view

  • Top view of PCB

    Top view of PCB

  • Bottom view of PCB

    Bottom view of PCB

  • Schematic of revision 2

    Schematic of revision 2

Pictures revision 3

Firmware (uploaded BIN files)

File Description
TransEra-641-RTC-1978.bin (?) Original Firmware revision 1978
TransEra-641-RTC-1984.bin (?) Original Firmware revision 1984
TE-rtc-641_y2k.bin (?) Modified 1984 Firmware for Y2k compatibility
Retrieved from "https://w140.com/tekwiki/index.php?title=TransEra_641-RTC&oldid=74738"