Where do you get your Wisp628? Have you successfully program a chip using it? I think you need to check the hardware.=20 I am not an expert in troubleshooting Wisp628 so I will leave=20 this to Wouter. I only used xwisp (python) for a few times on Linux.=20 I mainly use xwisp2 (C based) but I do not have the old 16F84A chip. Regards, Xiaofan -----Original Message----- From: Carlos A. Marcano V. [mailto:c.marcano@gmail.com] Sent: Monday, September 12, 2005 9:59 AM To: Microcontroller discussion list - Public. Subject: Re: [PIC] Trouble programming 16LF648A using Wisp628 By the way, I just tried to flash an oldie 16F84A with the simple=20 b84a-2.hex file (blink-a-led sample for 84A from Wouter=B4s page)| and go= t=20 this for answer: ... Not encouraging, eh? Then I tried it with the Xwisp2 but got the same problem as when I tried=20 with the other chip: the program just hanged and I had to terminate it. Regards, *Carlos Marcano* -Guri, Venezuela- --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist