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young
Joined: 24 Jun 2004
Posts: 285
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| How can I use 16c745 |
 Posted: Thu Nov 18, 2004 10:07 am |
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| I want to develope a usb application, and I find out that this 16c745 might be the chip I should use. however, what other items should I buy, like the usb cable, and what is the usb interface part, and how this part connects with 16c745? |
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Mark
Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA
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young
Joined: 24 Jun 2004
Posts: 285
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| Posted: Thu Nov 18, 2004 12:19 pm |
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Thank you very much mark:
I read the application not that you provide. from it, I could find the fireware between microchip and 16c745, but i could not find the firware bewtwwen and 16c745 and usb connector.would you please provide more help about this? |
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young
Joined: 24 Jun 2004
Posts: 285
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| Posted: Thu Nov 18, 2004 12:34 pm |
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| The 16c745 pin 15 is D- pin 16 is D+ however, there is only one pin Vusb pin 13, how can i connect the data wire to 16c745 |
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Mark
Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA
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Mark
Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA
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zio_pecos
Joined: 24 Oct 2004
Posts: 21
Location: italy
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Guest
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| Posted: Mon Nov 22, 2004 8:51 am |
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thank you zi0_pecos:
Would you help me find out what DDK should i download, I went to ther website in msdn, http://www.microsoft.com/whdc/devtools/ddk/default.mspx, but I do not know where to download, and which one, it is also look to me that it is not free? |
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Guest
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| Posted: Mon Nov 22, 2004 9:11 am |
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www.delphi-gems.com
here you can find the usb component
and some examples very useful |
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rwyoung
Joined: 12 Nov 2003
Posts: 563
Location: Lawrence, KS USA
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| Posted: Mon Nov 22, 2004 9:46 am |
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You would pick the one associated with the version of Windows you expect to use. Note that the Windows 98 DDK is "retired" and no longer supported by Microsoft. The Windows 2000 DDK is also retired but is still supported.
Only the DDK Suite 3 kit is available. It is available for purchase seperately or as part of a MSDN (Microsoft System Developer's Network) subscription.
In either case, it costs money.
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Rob Young
The Screw-Up Fairy may just visit you but he has crashed on my couch for the last month! |
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alexz
Joined: 17 Sep 2004
Posts: 133
Location: UK
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| Posted: Tue Nov 23, 2004 10:10 am |
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| Anonymous wrote: | www.delphi-gems.com
here you can find the usb component
and some examples very useful |
where exactly?
I could not find any 
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Alex |
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Guest
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| Posted: Tue Nov 30, 2004 2:55 pm |
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| I bought a 16c745 jw which can erease the memory to reprogram it, Do I need special device to erase the old program and use programmer to write in or just use progremmer to write as normal chicps? |
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rwyoung
Joined: 12 Nov 2003
Posts: 563
Location: Lawrence, KS USA
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| Posted: Wed Dec 01, 2004 3:09 pm |
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| Anonymous wrote: | | I bought a 16c745 jw which can erease the memory to reprogram it, Do I need special device to erase the old program and use programmer to write in or just use progremmer to write as normal chicps? |
The JW package is a windowed ceramic DIP. You need a UV (ultra violet) light chip eraser. Ebay sometimes has nice ones for a few buck. Otherwise Google around for terms like "UV eraser" and "erasing EPROM". Digikey, Mouse, Newark, Allied, Jameco probably have things in their catalogs.
It is possible but not practical to just leave the chip expose to direct sun light to erase but that will take a VERY LONG time. A good erasing unit can get the job done in 20 to 40 minutes.
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Rob Young
The Screw-Up Fairy may just visit you but he has crashed on my couch for the last month! |
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SherpaDoug
Joined: 07 Sep 2003
Posts: 1640
Location: Cape Cod Mass USA
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| Posted: Wed Dec 01, 2004 3:45 pm |
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I use a Datarase II from Walling Co.. Is is cheap but does the job in under 15 minutes. There is one on Ebay (3856251543) currently for US$7. Mine was probably under $25 new.
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The search for better is endless. Instead simply find very good and get the job done. |
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