PIC ICSP Programming Board - Electronic Circuits Projects Diagrams Free

Fred.Amoson · 11th May 2007, 08:23 PM

I recently picked up the PicKit 2 programmer and I want to make a programming board that will program DIP, SOIC, and SSOP chips of various sizes. For the DIP I will use a ZIF and for the SOIC/SSOP I will just have the outlines on a PCB and put the chip in the right spot and program.

Any tips for the design of this board? Has someone designed a board like this already?

Thanks

philba · 11th May 2007, 09:19 PM

yeah, skip straight to ICSP. I almost never bother with sockets. Consider what you will do, especially with SM packages, if you have to reprogram when the chip is mounted on the target board.

Fred.Amoson · 12th May 2007, 04:24 AM

Whenever I deal with SM, the boards are never large enough to add ICSP, and I usually have the code finalized before I actually solder the chip down. The one time I needed to make a change, I soldered 5 wires to the SM and programmed it via ICSP.

Shax · 12th May 2007, 04:38 PM

Fred,

here is a pic of a ZIF board I made for my PicKit2...

I've made a couple of different versions, to cater for different VDD / VSS locations on the various PIC chips I use.
Currently working on making a 40pin universal (jumpered) version..

**Nigel Goodwin** · 12th May 2007, 04:59 PM

You might try checking the P16PRO40 documentation?, which programs all sizes of PIC's in a single 40 pin ZIF - but uses two seperate Vpp lines switched in the software, you could do the same, but use an SPDT switch to select between them.

1Steveo · 12th May 2007, 05:31 PM

Look at Ebay item # 180112132626 , the sockets will cost you more than that!

mister_e · 12th May 2007, 07:22 PM

When you deal with SMD and If you can't fit a ICSP socket, you may want to use a IC-CLIP like the following
http://www.picbasic.co.uk/forum/atta...1&d=1135995023

and build an adapter.

have a look at the following link.
http://www.picbasic.co.uk/forum/show...highlight=clip

HTH

Mike, K8LH · 12th May 2007, 11:35 PM

Quote:

Originally Posted by Nigel Goodwin

You might try checking the P16PRO40 documentation?, which programs all sizes of PIC's in a single 40 pin ZIF - but uses two seperate Vpp lines switched in the software, you could do the same, but use an SPDT switch to select between them.

The problem with the aging P16PRO40 (I have one) is that it's not pinned out for the 14-pin and 20-pin devices.

If it'll help, here's a layout I've used for "programming adapters" (below). You can install a ZIF socket on the 28-40 layout or use 3 inexpensive single-in-line machined pin sockets instead. The little 20 pin layout supports the 8-pin, 14-pin, 18-pin, and 20-pin devices. I have a different layout for 28-40 pin dsPIC devices.

philba · 12th May 2007, 11:56 PM

Quote:

Originally Posted by mister_e

When you deal with SMD and If you can't fit a ICSP socket, you may want to use a IC-CLIP like the following
http://www.picbasic.co.uk/forum/atta...1&d=1135995023

and build an adapter.

have a look at the following link.
http://www.picbasic.co.uk/forum/show...highlight=clip

HTH

I never put an ICSP header for soics - I use a similar clip from pomona. There really is no reason to waste the space for a header.

Sceadwian · 13th May 2007, 12:02 AM

Headers are useful if you want to be able to re-program the chip without opening up the device, perhaps via a 6 pin header in a battery compartment.

Shax · 13th May 2007, 09:17 PM

Quote:

Originally Posted by Mike, K8LH

The problem with the aging P16PRO40 (I have one) is that it's not pinned out for the 14-pin and 20-pin devices.

If it'll help, here's a layout I've used for "programming adapters" (below). You can install a ZIF socket on the 28-40 layout or use 3 inexpensive single-in-line machined pin sockets instead. The little 20 pin layout supports the 8-pin, 14-pin, 18-pin, and 20-pin devices. I have a different layout for 28-40 pin dsPIC devices.

Cheers for the layout Mike..

I know what I'll be doing this week.. laying out a PCB to hold the 2 ZIF sockets!

**Nigel Goodwin** · 13th May 2007, 10:17 PM

Quote:

Originally Posted by Mike, K8LH

The problem with the aging P16PRO40 (I have one) is that it's not pinned out for the 14-pin and 20-pin devices.

I don't think I've got any 20 pin devices to try?, but certainly 14 pin ones work fine. But in any case, the P16PRO40 ZIF principle still holds, and you could easily use a three way switch to select even more devices if required.

philba · 13th May 2007, 11:03 PM

Quote:

Originally Posted by Sceadwian

Headers are useful if you want to be able to re-program the chip without opening up the device, perhaps via a 6 pin header in a battery compartment.

if I need to update a box in the field, I much prefer to use a microcontroller that supports a serial boot loader. Using ICSP really limits the cable length a whereas a serial cable can be quite long.

Fred.Amoson · 14th May 2007, 02:22 PM

Thanks for all of the help!

I think I'll look into getting a 20 pin ZIF to program the DIPs and some various SOIC clips for SOIC programming. I'll deal with SSOPs when the time comes. I'm not sure I could even solder them in place.

Thanks!

Fred.Amoson · 14th May 2007, 02:28 PM

Quote:

Originally Posted by Shax

Fred,

here is a pic of a ZIF board I made for my PicKit2...

I've made a couple of different versions, to cater for different VDD / VSS locations on the various PIC chips I use.
Currently working on making a 40pin universal (jumpered) version..

That looks almost exactly like what I want to make for the DIPs. Would you be willing to share that board layout? If not, no problem.

Also, anyone know a good source for ZIF sockets? I usually order from Mouser, but they have very few choices. I'm in the US.

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11th May 2007, 08:23 PM	#1
Fred.Amoson	PIC ICSP Programming Board I recently picked up the PicKit 2 programmer and I want to make a programming board that will program DIP, SOIC, and SSOP chips of various sizes. For the DIP I will use a ZIF and for the SOIC/SSOP I will just have the outlines on a PCB and put the chip in the right spot and program. Any tips for the design of this board? Has someone designed a board like this already? Thanks

11th May 2007, 09:19 PM	#2
philba	yeah, skip straight to ICSP. I almost never bother with sockets. Consider what you will do, especially with SM packages, if you have to reprogram when the chip is mounted on the target board.

12th May 2007, 04:24 AM	#3
Fred.Amoson	Whenever I deal with SM, the boards are never large enough to add ICSP, and I usually have the code finalized before I actually solder the chip down. The one time I needed to make a change, I soldered 5 wires to the SM and programmed it via ICSP.

12th May 2007, 04:38 PM	#4
Shax	Fred, here is a pic of a ZIF board I made for my PicKit2... I've made a couple of different versions, to cater for different VDD / VSS locations on the various PIC chips I use. Currently working on making a 40pin universal (jumpered) version.. Attached Thumbnails __________________ ==== Shax. ==== A bus station is where a bus stops... A train station is where a train stops... On my desk I have a work station... Nuff Sed!!!

12th May 2007, 04:59 PM	#5
Nigel Goodwin	You might try checking the P16PRO40 documentation?, which programs all sizes of PIC's in a single 40 pin ZIF - but uses two seperate Vpp lines switched in the software, you could do the same, but use an SPDT switch to select between them. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

12th May 2007, 05:31 PM	#6
1Steveo	Look at Ebay item # 180112132626 , the sockets will cost you more than that!

12th May 2007, 07:22 PM	#7
mister_e	When you deal with SMD and If you can't fit a ICSP socket, you may want to use a IC-CLIP like the following http://www.picbasic.co.uk/forum/atta...1&d=1135995023 and build an adapter. have a look at the following link. http://www.picbasic.co.uk/forum/show...highlight=clip HTH __________________ Steve Last edited by mister_e; 12th May 2007 at 07:24 PM.

13th May 2007, 12:02 AM	#10
Sceadwian	Headers are useful if you want to be able to re-program the chip without opening up the device, perhaps via a 6 pin header in a battery compartment. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

14th May 2007, 02:22 PM	#14
Fred.Amoson	Thanks for all of the help! I think I'll look into getting a 20 pin ZIF to program the DIPs and some various SOIC clips for SOIC programming. I'll deal with SSOPs when the time comes. I'm not sure I could even solder them in place. Thanks!