Replacement power supply
Replacement power supply
Hi, I am taking a course in which we are building a compass. We are using the Eblock (EB-006-00-6)to program the chip. My E blocks was from an earlier course and I could not locate my power supply. I replaced it with a 13.5v 1A power supply and now it seems my Eblocks is not working at all. Have I done serious damage to my Eblocks? Is there anyway to fix it. I appreciate any help I can get.
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Steve
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Re: Replacement power supply
Assuming you have connected the power supply correctly, I don't see why it should cause the EB006 board to break.
Can you please explain more about how it is not working, including jumper information, target chip, voltage levels, etc, and we'll try to help.
Can you please explain more about how it is not working, including jumper information, target chip, voltage levels, etc, and we'll try to help.
Re: Replacement power supply
OK, let me start by mentioning that the adapter that plugs in on the board side can be reversed to change the polarity. I did not know which way it should be and looked to see if the green LED lit when I pugged it in. It did, so I assumed that I had guessed correctly there. However, before I had finished what I was doing, the green LED was out. I had hooked the board to the power supply and the computer with my board attached. I am using PPPv3 to load the program. I selected the chip to load and recieved the message "cannot ID onboard chip". That is when I noticed that the green LED was out. I reversed the polarity and plugged it in again. The green LED sayed out. It won't go on no matter which way it is now.
I am still very green about many of the elements on this board. I am using the board as it comes with a board that I built attached to it to program the chip for the new board. That chip is a PIC16F72. Other than the power supply and my new board, the only thing attached is the USB to my computer. The voltage for my board will be a 9V battery and that is not connected yet. As for jumpers, my board has a jumper to turn on the battery. I'm not sure about the Eblocks, unless you are refering to the way my board is connected to the Eblocks. I am using the 20 pins directly below the amber LED. I will continue to investigate what information that I need in order to provide you with a clear picture. Speaking of pictures, would it benefit you if I included some? Thank you for posting so quickly.
I am still very green about many of the elements on this board. I am using the board as it comes with a board that I built attached to it to program the chip for the new board. That chip is a PIC16F72. Other than the power supply and my new board, the only thing attached is the USB to my computer. The voltage for my board will be a 9V battery and that is not connected yet. As for jumpers, my board has a jumper to turn on the battery. I'm not sure about the Eblocks, unless you are refering to the way my board is connected to the Eblocks. I am using the 20 pins directly below the amber LED. I will continue to investigate what information that I need in order to provide you with a clear picture. Speaking of pictures, would it benefit you if I included some? Thank you for posting so quickly.
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Steve
- Matrix Staff
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- Joined: Tue Jan 03, 2006 3:59 pm
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Re: Replacement power supply
The polarity of the power supply will not matter - there is a bridge rectifier on board the EB006-6 board.
The PSU/USB jumper needs to be in the PSU setting. Also, have you had any success using another chip - i.e. without your addon board?
Yes - it would help if you post some pictures of your board so I can understand better.
The PSU/USB jumper needs to be in the PSU setting. Also, have you had any success using another chip - i.e. without your addon board?
Yes - it would help if you post some pictures of your board so I can understand better.
Re: Replacement power supply
Your suggestion to test the board with another chip was an excellent one. I pulled up the datasheet for my eblock and did the test program in there. Everything worked great. Incidentally, the green LED never when out. Why it went out on me previously is unclear. My addon board is still not working, but that is a personal problem 
. I can now go back to my class and address that problem there. Thank you so much for your help, your advice taught me so much about the eboard (I now know where the jumpers are!) I will come back in the future for additional help.
. I can now go back to my class and address that problem there. Thank you so much for your help, your advice taught me so much about the eboard (I now know where the jumpers are!) I will come back in the future for additional help.