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Mikkel C. Simonsen
06/05/13 12:02
Read: 2180 times
Haderslev
Denmark


 
#189861 - Programming AT89LP214
I have just attempted to program an Atmel AT89LP214 without much luck. This is a new device for me. I bought an "AT89 ISP Cable", and connected the 10 wires to the correct pins (I think). The I try using the "Auto Program" function, the erase part works, and when the actual programming starts, I get this message: "The device is READ/WRITE LOCKED." How can an erased chip be read/write locked?

The pins I have connected (on the LP214) are the following:

1 MOSI
2 SCK
3 RST
4 GND
10 VCC
14 MISO

I have a regulated 5V supply connected to VCC and GND. No other pins are connected. The LP214 has a built-in oscillator, but does it still need a crystal for programming? When I tried to read data from a chip (Atmel signature, user signature etc.), I would get all zeroes. I changed the parallel port mode from EPP to ECP, and now I get what looks like random data. How should the parallel port be setup for the cable to work? The manual doesn't mention anything...

Is other software available for use with the LP214 and 89ISP cable? I have used PonyProg in the past (without problems), but it does not support the "newer" Atmel devices.

Best regards,

Mikkel

List of 18 messages in thread
TopicAuthorDate
Programming AT89LP214      Mikkel C. Simonsen      06/05/13 12:02      
   easily      Erik Malund      06/05/13 13:26      
      Not so easy with an Arghmel      Mikkel C. Simonsen      06/05/13 15:53      
   How certain are you of the applicability of your cable?      Richard Erlacher      06/05/13 15:26      
      Correct, ancient, cable      Mikkel C. Simonsen      06/05/13 16:08      
         No Crystal needed      Jim Granville      06/05/13 18:52      
            More testing      Mikkel C. Simonsen      06/05/13 21:13      
               SS is needed      Jim Granville      06/05/13 22:25      
                  The secret SS pin      Mikkel C. Simonsen      06/06/13 06:29      
                     Secret SS      Michael Karas      06/06/13 14:36      
                        Parallel ports are easy to find...      Mikkel C. Simonsen      06/06/13 17:19      
                           Bugs...      Mikkel C. Simonsen      06/06/13 18:17      
                               Bugs...      Jim Granville      06/06/13 20:05      
                                 Size matters      Mikkel C. Simonsen      06/06/13 20:24      
                                    with all this stupid stuff I would immediately ...      Erik Malund      06/07/13 07:59      
                                       Alternatives      Mikkel C. Simonsen      06/09/13 13:35      
                              What do you expect ... it's ATMEL      Richard Erlacher      06/06/13 20:52      
                     this is ATMEL ... what do you expect?      Richard Erlacher      06/06/13 20:51      

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