Hi,
I am working on a small project, for which i have created chip code, which i have tested and it works fine in Keil IDE. But the same when uploaded to chip behaves partly expected or totally unexpected. Some times the chip doesn't reset even done hardware reset.
I have checked it with 3 chips, but no success. My programmer seems fine as it is detecting attached chip and programming chip correctly.
In my project I need serial communication, which is also not working fine. Sometime the MCU skips sending or receiving characters, or doesn't respond to command event after hardware resets.
Could you please suggest me how to resolve this?
Let me know if any further information is required.
Details AT89S52, USB Programmer, C Programming language,
Regards,
Bhagirath
Hi Erik,
Thanks for reply
The reset pin is connected to 8.2k. I couldn't understand your 2nd and 3rd point.
But let me just try to clarify my board details. It is just simple general purpose board design to work with s52. It has hardware reset push button, crystal with 11.0592 MHz.
Regards Bhagirath