jabela
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Hi, I'm unfamiliar with this hardware so go easy on me
I'm trying to communicate using the AT89ISP cable from Atmel with an AT89S53 chip on a system we have. I'm using the software provided with the cable and a laptop running Win98. (here's the site for it **broken link removed**
I select the port (lpt1), the chip, and the frequency, and then initialize the chip (which works).
If do a blank check on the chip, it says "error, chip is write locked"
If I try to read from the chip, it works, but all I get is a bunch of 00's followed a bunch of FF's repeated over and over.
If I try to autoprogram the chip, it says it successfully erases the chip, but then it says "error, chip is write locked".
I'm under the impression that erasing the chip should remove all locks on the chip and allow me to read/write to it.
Am I doing anything wrong? Any help would be appreciated.
Thanks!
I'm trying to communicate using the AT89ISP cable from Atmel with an AT89S53 chip on a system we have. I'm using the software provided with the cable and a laptop running Win98. (here's the site for it **broken link removed**
I select the port (lpt1), the chip, and the frequency, and then initialize the chip (which works).
If do a blank check on the chip, it says "error, chip is write locked"
If I try to read from the chip, it works, but all I get is a bunch of 00's followed a bunch of FF's repeated over and over.
If I try to autoprogram the chip, it says it successfully erases the chip, but then it says "error, chip is write locked".
I'm under the impression that erasing the chip should remove all locks on the chip and allow me to read/write to it.
Am I doing anything wrong? Any help would be appreciated.
Thanks!