1 gTAG - USB to JTAG interface
2 ============================
4 This is the README file for the schematic of gTAG.
8 gTAG is an interface to connect your USB port of computer to talk
9 to your circuits which talks JTAG.
13 These schematics is (C) by Stefan Petersen (spe@stacken.kth.se) and
14 released under GPL (see the attached file COPYING). GPL is mainly
15 written for software, ie intellectual property in electronic form.
16 By making this schematic an intellectual property in electronic
17 form gTAG schematics can be covered by GPL.
21 These schematics are made with gschem and netlists are then generated
22 with gnetlist. Both gschem and gnetlist are part of gEDA
23 (http://www.geda-project.org/).
27 The distribution of the schematics of gTAG should consist of:
29 * COPYING - GPL copyright notice.
30 * crdist.sh - shell script used to generate the tar.gz.
31 * ChangeLog - tries to scribble down what has changed between versions.
32 * Four component symbols:
33 - 7414-1.sym - Original 7414 from gschem without power attributes.
34 - max882.sym - 5-to-3.3 V converter.
35 - cy7c64603-52nc.sym - USB microcontroller from Cypress.
36 - sn75240pw.sym - Surge supressor for USB
37 - copyleft.sym - Symbol with GPL text for all schematics.
38 * Five schematics with four symbols:
39 - gTAG.sch - Toplevel schematic for gTAG
40 - gTAG-jtagio.[sym/sch]
41 - gTAG-ucont.[sym/sch]
42 - gTAG-consio.[sym/sch]
44 * gEDA rc-files for this project:
45 - gafrc - contains common declarations for both gschem and gnetlist
46 - gnetlistrc - gnetlist specific hierarchy options
47 * attribs - attribute list for BOM creation
49 The repository also contains the following generated files:
53 * PostScript exports of the schematics: