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307-Module Support
If you have problems when using the 307-Module check the following:
- Is power applied correctly (ie +5 is greater than 4.8 Volts above 0V)?.
- Are the EPROMs fitted correctly? Check the legs are not folded underneath the EPROM, check that the EPROM links are correct for the size of EPROM you are using.
- Is the default serial port off the board? If YES then check that the serial port is connected to the 307-Module and that the address is set correctly (see expansion serial port documentation).
- Have you selected to correct COM port on your PC (if applicable)?. Is the Module/Serial port connected to the selected COM port?. Check that you are running a suitable terminal program using the correct serial port parameters (9600,8,1,n by default).
- Turn the power off and remove the battery back link (LK7) for about 1 minute, refit LK7 and turn on again. This will clear the contents of the battery backed RAM. On very rare occasions this can become corrupted.
- Fit the standard shipping EPROMs and remove the battery link (LK5) for about 1 minute. If the board now responds correctly then check that the LST file is correct and all files required are included. Check that the sysinit file is correct. All device names are UPPER CASE and all programs are LOWER CASE.
- If the Module is able to transmit data but not receive, check that you have not installed a SERIAL mouse on the same COM port as you are using for the Module. This will probably be in CONFIG.SYS or AUTOEXEC.BAT. If you have installed a serial mouse either use a different COM port or comment out the relevant lines and reset the PC. Serial mouse drivers often disable the transmitter in the PC serial port.
- Try using Hyper Terminal or Windows Terminal. These packages do not require the CTS/RTS handshaking. If the Module works in these and not the supplied terminal, check your serial cables to ensure that the handshaking lines are connected.
- If you can not communicate with the Module, try a another P.C.
If the Module still does not respond correctly, write a full description of the fault, any error messages, etc. and fax it to Technical support or email support@cms.uk.com.
If you feel that the product is faulty please download and complete a Returns Application form before returning the product for repair.
Although Cambridge Microprocessor Systems Ltd is committed to supplying its customers with a standard well tested product, errors and bugs can always be found in even the most widely used software packages. If you find any errors or bugs please let us know by sending an email to support@cms.uk.com. All reported errors will receive a response from one of our engineers.
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Support
