Answer : The PC serial programmer uses UART asynchronous communication. Therefore, note that, from a viewpoint of the baud rate setting,
there are limits on the original oscillation frequencies usable. For details, see the PC programmer specifications.
I want to perform serial writing by using the conversion board between USB and RS-232C through USB I/F of a PC.
Answer : Based on the simplified evaluation, we confirmed that operation is normal by using the I-0 DATA-manufactured USB serial conversion
adapter (USB-RSAQ2 Ver1.11) and PC serial programmer. (Evaluation PC:FMV 6450TX2 Pentium 450 MHz)
A writing error occurs for the Full-Operation function when the PC programmer V01L07 is used.
Answer : To reduce the ERASE time, the Full-Operation function surely performs Blank Check after download and performs the following
operations:
Blank: ERASE is not executed and data is written.
No Blank: ERASE is executed and data is written.
When the security function is on in the FLASH microcomputer, Blank is judged in Blank Check although data is already written.
Data may be written without ERASE execution. So, when the security function is "on," avoid the use of the Full-Operation
function.
Answer : When Full-Operation is executed, Blank Check is first executed. After that, when the Blank status is found, writing is performed
without ERASE execution. When the Blank status is not found, writing is executed after ERASE execution.
I am planning to make a serial programmer by myself. Is there any data available?
Answer : Data on how to expand the writing control program to RAM when serial writing mode is started and on how to execute RAM can
be provided. However, customers should develop the writing control program to be executed on RAM.
Do the write data sent from the PC programmer (V01L05) and that received in the microcomputer confirmed?
Answer : During operation inside the microcomputer at writing, the write data and data actually written is compared when the toggle
is checked after command issuance. Data received and data sent from a PC is not compared with a SUM value etc. Therefore,
when data is garbled due to external noises when the data is sent, the garbled data is written. Data is written in RAM in
units of 512 bytes for buffering. A communication error check is version-managed.
What is the cause of error No. 011 communication error?
Answer : At confirmation of a microcomputer response for download, erase, blank check, program (every 512 B), read (every 512 B), and
copy (every 512 B), this error is caused when a microcomputer returns unintended data. When no response is given (FFh), a
timeout error (No.001) will occur.
