Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I have a serious problem . Please help. I made a circuit, I ysed 2 pics. One of them is Pic 16f628a and Pic 16f877a . Bothe of them are smt . I use ICSP port to programm them. I can programm 628A but I couldnt programm 877a .Pic kit 2 warns pk2error0027. What can I do?
You need to find out what's causing the error - if you looked at the helpfile you would see it's a verify error, and that there should be an address associated with it.
Assuming it's at the first address used, then it's not switching to programming mode, most likely caused by a connection error - post your complete scematic.
I have another problem. I used pic628A as 4x4 keypad encoder. And I written a program for it in asm. When I press button no anything happen in some buttons..Program works in mpasm simulator. But in circuit this problem appears. I checked pin contacts. they are ok. this is my program, please help
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