mstechca
New Member
I finished my microcontroller programmer 
When I send the data from the computer to the microcontroller, I managed to have the data sent synchronously, and it seems that the computer is showing full co-operation with me, even if I used a low clock rate of 500ms.
HOWEVER, when I tried using the microcontroller alone after programming it, I'm not receiving correct data.
The only thing I'm thinking is that I'm sending wrong parameters.
Included in my circuit is a clock with an LED that blinks at apecified intervals.
Here's another thing interesting. When I insert one microcontroller into the socket to be programmed (in the right way), the LED blinks twice the speed. When I replace it with a new one, the LED blinks at the normal speed. When I connected my LCD to the circuit, the same thing happens.
why?
All microcontrollers are at89c2051.
and the programming pin is set to 12V during programming and grounded when complete.
When I send the data from the computer to the microcontroller, I managed to have the data sent synchronously, and it seems that the computer is showing full co-operation with me, even if I used a low clock rate of 500ms.
HOWEVER, when I tried using the microcontroller alone after programming it, I'm not receiving correct data.
The only thing I'm thinking is that I'm sending wrong parameters.
Included in my circuit is a clock with an LED that blinks at apecified intervals.
Here's another thing interesting. When I insert one microcontroller into the socket to be programmed (in the right way), the LED blinks twice the speed. When I replace it with a new one, the LED blinks at the normal speed. When I connected my LCD to the circuit, the same thing happens.
why?
All microcontrollers are at89c2051.
and the programming pin is set to 12V during programming and grounded when complete.