Why I can't load my code to PIC16F877A

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winpic pic16f877a

hello, everyone
Can you help me? Why I can't load my program to PIC16F877A.
I use WinPIC 800 Programer ,and loader circuit is propic 2.
can you help me!
I think I have a mistake while changing some parameter in setting menu of Programmer winpic 800
PLZ tell me more Info about the parameters in WINPIC800
 

picpgm gtp lite

Hi!
Go to the settings tab and then hardware to set the hardware to the type that you are using.Also check if the chip is write protected.Write protection can be disabled by first erasing the device completly.
Regards.
 

Hi!
After clicking the "settings" tab you will see what i have posted . In the selection of hardware window select the your hardware, as i have selected.
Regards.
 


Check your LVP pin if it is connected to the ground.
 



use picpgm program is auto:idea:
 

hello I also facing the same problem with the winpic800 ver. 3.55b.
my loader circuit is GTP-USB-Lite.
I am using the RS232 cable to connect the PIC burner to my pc.
but the burner just wont detect the PIC16F877A.
Pls help me.
Thanks.
 

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