Epson S1C62 Family Benutzerhandbuch

Tool

ASM62XX

MDC62XX

MLA628X

Evaluation

board

S5U1C62xxxE

Problem

An R error occurs although the final
page is passed.

Activation is impossible.

No melody is output.

The evaluation board does not work
when it is used independently.

Target segment does not light.

Remedy measures

The cross assembler is designed to output "R error" every
time the page is changed. Use a pseudo-instruction to set the
memory, such as ORG or PAGE, to change the page. See
"Memory setting pseudo-instructions" in the cross assem-
bler manual.
Check the following and remedy if necessary:
• Is the number of files set at ten or more in OS environ-

ment file CONFIG.SYS?

Check the following and remedy if necessary:
• Has the OPTLD command of the ICE been executed? (When

the ICE is connected to the evaluation board)

• Is the MELODY ROM installed? (When the evaluation

board is used independently)

• Is the attack bit of the melody data set to "1"?
Check the following and remedy if necessary:
• Has the EPROM for F.HEX and S.HEX been replaced by

the EPROM for the target?

• Is the EPROM for F.HEX and S.HEX installed correctly?
• Is the appropriate voltage being supplied? (5V DC, 3 A,

or more)

• Are the program ROMs (H and L) installed correctly?
• Is data written from address 4000H? (When the 27C256

is used as the program ROM)

• Is the EN/DIS switch on the evaluation board set to EN?
Check the following and remedy if necessary:
• Is an EPROM with an access time of 170 ns or less being

used for S.HEX.

• Has the VADJ VR inside the evaluation board top cover

been turned to a lower setting?