ATmega16 eprom/eeprom/flash programmer? - Page 1
Forum section: electronics / general

author: daniel19210
author_rank: Contributor
timestamp: December 08, 2012, 08:31:54 am
content: I need some cheap, easy to build eprom/eeprom/flash programmer but my PCs don't have LPT port. Is there something based around atmega16 or similar uC? Searching in the internet gives me only programmers for avrs and ATmega8 + shift registers programmer but it barely works. ATmega16 seems to have just right amount of pins to program some 28/32pin chips.Thanks.

author: poorchava
author_rank: Super Contributor
timestamp: December 08, 2012, 09:14:23 am
content: Shoot the stealbay for USB ASP. It's an open source usb programmer using v-usb software stack to communicate an avr with pc. U can get those from china for around $3-4 with free shipping (i scored mine for $1.19)Works as intended.

author: daniel19210
author_rank: Contributor
timestamp: December 08, 2012, 12:43:49 pm
content: Yeah but that's not what I meant. I want ATmega16 to program external memory chips like AT49F040 or M27C512 through parallel interface.

author: hlavac
author_rank: Frequent Contributor
timestamp: December 08, 2012, 06:13:32 pm
content: I would also like some that can do GALs - that is fast becoming a lost art!If there is none I'm willing to start an open source hardware/software project to make one.

author: daniel19210
author_rank: Contributor
timestamp: December 08, 2012, 07:43:02 pm
content: I already started working on my programmer. I'll try to make it work with GALs.

author: hlavac
author_rank: Frequent Contributor
timestamp: December 08, 2012, 08:56:50 pm
content: If you need any help, just ask

author: hlavac
author_rank: Frequent Contributor
timestamp: December 08, 2012, 09:06:26 pm
content: BTW I think v-usb with low speed software usb will be too slow. You need Full speed Bulk transfer mode to program at anywhere near maximum speed (M27C512 in 6 seconds or so).I would rather use ATmega32U4 with real hardware USB peripheral.

author: jeroen74
author_rank: Frequent Contributor
timestamp: December 09, 2012, 09:14:42 am
content: Why bother and reinvent the wheel?You can buy this stuff for less than $50:http://www.ebay.com/itm/top853-USB-universal-programmer-EPROM-MCU-GAL-PIC-/160378432470?pt=LH_DefaultDomain_0&hash=item25574cabd6

author: T4P
author_rank: Super Contributor
timestamp: December 09, 2012, 10:28:12 am
content: Sorry the willem will only program via Parallel interface - sorry about that. And china don't make GAL programmers no moreQuote from: jeroen74 on December 09, 2012, 10:36:37 amYeah exactlySo ... TOP853 vs TL866CS which is better?

author: jeroen74
author_rank: Frequent Contributor
timestamp: December 09, 2012, 10:36:37 am
content: Who uses GALs anyway?

author: daniel19210
author_rank: Contributor
timestamp: December 09, 2012, 11:00:34 am
content: Quote from: jeroen74 on December 09, 2012, 09:14:42 amFor poor hobbyist like me it's a bit to expensive. You could ask designer of the USBasp why bother and reinvent the wheel. Many people (including me) are using this programmer. Description of this programmer says that it supports 5V devices only but in compability list i found 27C256-12.7V and other 12.7V chips. Which one should i believe?Quote from: hlavac on December 08, 2012, 09:06:26 pmFor now I'm using RS232. When I get this first prototype running I'll try with fullspeed USB.Quote from: wilfred on December 09, 2012, 10:04:15 amActually I need a cheap programmer for Game Boy cartridges.Sooner or later I'll buy of the shelf programmer but for now I'm broke.https://dx.com/p/autoelectric-tl866cs-universal-programmer-156364How about this one?

author: hlavac
author_rank: Frequent Contributor
timestamp: December 09, 2012, 04:10:03 pm
content: Quote from: jeroen74 on December 09, 2012, 10:36:37 amI doFor a C64 cartridge.