Any english version for this URL ? -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of Tamas Rudnai Sent: Thursday, January 31, 2008 9:30 AM To: Microcontroller discussion list - Public. Subject: [PIC] Simplified PicKit2 clone for hobby use Hi All, The friend of mine, Szilva has just made a simplified PicKit2 clone for hobby users and he asked me to drop a mail here if someone has thoughts about his design. The main purpose was to be able to build it by through-hole parts, and anyhow that is simple enough to build it at home by every hobbyist. It uses the "normal" USB B connector so that the cable is easier to find at home, so each components a little bit bigger than you can find in the original device, however, the size of the PCB is quite the similar. The circuit compatible with the MC PicKit2 firmware, however, you can use other crystal than 20MHz - you have to set the PLL differently of course (for example he tested it using 12MHz, with PLLDIV 3 with success). http://szilva.info/pickit2-1/ There are two major difference between this and the original PicKit2: 1. There is no EEPROM as it is not used at the moment 2. The variable Vdd is missing, so only 5V parts can be programmed with this In the meantime he used mosfets for Vpp pump, and although he put the clamp diode D2, he said it can be eliminated as it reduces voltage level. He also tried couple of different value of coils, with 1mH was using a bit less current than with 470uH, however, the difference is not that huge - he recommends to use the original value of 680uH though. He's delighted to hear any comments, criticism or suggestion - I am trying to get him here, so hopefully he will subscribe to be able to read your messages . Regards, Tamas -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist