Xiaofan Chen wrote: >How do you deal with the 16F648A without the dongle? Take note >a blank chip will have no problem but a non-blank chip may have >problems. My tricks is to erase the chip first. Still you may want >to build the dongle. > > Well, I think that it is working because Xwisp and Xwisp2 when using the "go" parameter they erase first, write program, check and finally put the target in run mode. Just my guess. By the way, I have tested with a 16F88 also, using internal oscillator at 8 MHz, and RA5-/MCLR-VPP pin function as /MCLR and works fine with my Wisp628 (with the shorter cable) and using XWisp and XWisp2 softwares. Regards, *Carlos Marcano* -Guri, Venezuela- -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist