12/13/90

The current version of EVSbug05 is 1.1. If you are currently using version
0.6 or older, new PALs are required before you may upgrade.

EVSBUG05 HISTORY AND SOFTWARE BUG REPORT
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0.4 -   FIRST MONITOR SHIPPED WITH INITIAL BETA EVSs
0.5 -   ADDED PROGRAM CAPABILITY FOR 705J2
0.6 -   ADDED PROGRAM CAPABILITY FOR 705P9 - BUT NO 705P9S TO TEST ON
0.7 -   MOVED EVS PERIPHERALS TO DIFFERENT ADDRESS TO ALLOW COMMON MONITORS
    -   BUG FOUND IN PROGRAMMING 705P9s
1.0 -   FIRST EVS PRODUCTION VERSION, 705J2 PROGRAM PROBLEM THE VERIFY ROUTINE
    -   CHECKED THE BOOTROM AREA AND GIVES "does not verify" PROMPT UNLESS
    -   A "copy F01 FEF" COMMAND WAS ISSUED BEFORE THE PROGRAM.
1.1 -   FIXED 705J2 VERIFY PROBLEM ENCOUNTERED IN 1.0
    -   ADDED CAPABILITY TO PROGRAM MOR BYTE OF 705P9, WHICH PREVIOUS VERSIONS
    -   DID NOT DO. NOTE: THE MOR NEEDS TO BE PLACED AT LOCATION $901 INSTEAD
    -   OF $900 FOR PROGRAM AND VERIFY, AND COPY PLACES IT AT $901.

EVS HARDWARE BUG REPORT
-----------------------

P8EVS - REV B, SCHEMATIC 2

1. THE TARGET IRQ SIGNAL MUST BE HIGH DURING RESET OR EVM WILL NOT COME UP.
2. 705J2s MAY BE BLOWN UP DURING THE SWITCHING OF SW1
   THIS IS DO TO VPP GETTING TO PART BEFORE +5V.
   FIX IS TO PLACE 0.1uF FROM PIN 19 OF Z1 TO GND.
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P9EVS - REV B, SCHEMATIC 2 AND 3

1. THE TARGET IRQ SIGNAL MUST BE HIGH DURING RESET OR EVM WILL NOT COME UP.


FOR MORE INFORMATION

Contact: Mike Wood
         MCU APPLICATIONS
         512-891-2717