bob ball 的 one chip tnc 設計:
;=================================================================================================
; modemless packet radio terminal node controller
; c 2004 bob ball wb8wga., see notice at bottom of file
; amateur and educational use encouraged
; reproduction for commercial purposes prohibited without written permission
;
;
; acknowledgements:
; this program builds on the work of many others.
; it was inspired by the previous work of mike berg, n0qbh, on modemless packet receiver design.
; also thanks to byon garrabrant,john hansen, and others for work published on pic packet radio at tapr site
; transmit tone generation interrupt routine from son of tinytrak (sott) by mike pendley, ; k5atm
;
;=================================================================================================
; designed to run on a pic16f88 at 20 mhz.
;=================================================================================================
; this program does packet receive and digipeat of standard ax25 packets at 1200 baud.
; it transmits ax25 beacons with user inputed text
; it will also transmit ui frames in conversation mode as addressed by unproto.
; serial port may be connected to either a terminal or gps unit. controlled by jumper j4
; with gps connected, sends nmea sentences, as controlled by gps command option
; mycall, unproto, alias, btext,beacon on/off, & monitor on/off parameters are inputted by user and
; stored in eeram after perm command is entered
;=================================================================================================
