Difference between revisions of "Fx2lafw"
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* [http://sdcc.sourceforge.net/ sdcc] (C compiler for 8051 microcontrollers, usable for FX2) | * [http://sdcc.sourceforge.net/ sdcc] (C compiler for 8051 microcontrollers, usable for FX2) | ||
* fx2lib: [http://sourceforge.net/projects/fx2lib/ SF project page], [http://allmybrain.com/2008/12/05/an-open-source-library-for-writing-firmware-on-the-cypress-fx2-with-sdcc/ blog article], [https://github.com/mulicheng/fx2lib github repo], [http://sourceforge.net/mailarchive/forum.php?forum_name=fx2lib-devel mailing list] | * fx2lib: [http://sourceforge.net/projects/fx2lib/ SF project page], [http://allmybrain.com/2008/12/05/an-open-source-library-for-writing-firmware-on-the-cypress-fx2-with-sdcc/ blog article], [https://github.com/mulicheng/fx2lib github repo], [http://sourceforge.net/mailarchive/forum.php?forum_name=fx2lib-devel mailing list] | ||
* [http://www.cypress.com/?id=193 Cypress FX2] docs: | |||
** [http://www.cypress.com/?rID=38801 CY7C68013A, CY7C68014A, CY7C68015A, CY7C68016A datasheet] ([http://www.cypress.com/?docID=30172 PDF]) | |||
** [http://www.cypress.com/?rID=38232 EZ-USB Technical Reference Manual (TRM)] ([http://www.cypress.com/?docID=27095&dlm=1 PDF]) | |||
** [http://www.cypress.com/?id=193&rtID=76 EZ-USB FX2LP appnotes] | |||
** [http://www.cypress.com/?id=193&rtID=111 EZ-USB FX2LP errata] | |||
** [http://www.cypress.com/?rID=14448 GPIF Designer] (Windows software, requires login) | |||
*** [http://www.cypress.com/?rID=14319 CY3681 EZ-USB FX2 Development Kit] (GPIF designer downloadable without login) | |||
Revision as of 22:41, 13 February 2012
fx2lafw is an open-source firmware for Cypress FX2 chips which makes them usable as simple logic analyzer hardware.
It is licensed under the terms of the GNU GPL (version 2, or later) and written in C, using sdcc as compiler, and fx2lib as helper library.
Hardware overview
The fx2lafw firmware is meant to work on any FX2-based hardware, including logic analyzers, FX2 eval boards, or other hardware which has this chip on-board.
Here's a quick overview of some of the relevant hardware information we have about the various devices:
| Device | Probes (pins) | Crystal | FX2 package | Buffer/ESD-protection | Resistor per probe | I2C EEPROM |
|---|---|---|---|---|---|---|
| Saleae Logic | 8 (PB0-PB7) | 24MHz | 56PVXC (SSOP) | ST DVIULC6-4SC6 | ? Ω | ? |
| EE Electronics XLA ESLA100 | 8 (PB0-PB7) | 24MHz | 56LFXC (QFN) | NXP 74HC245D | 100 Ω | Atmel ATMLH911 02B 1 |
| CWAV USBee SX | 8 (PB0-PB7) | 24MHz | 56PVXC (SSOP) | none | 560 Ω | Microchip 24LC01B |
Download
Building
Resources
- sdcc (C compiler for 8051 microcontrollers, usable for FX2)
- fx2lib: SF project page, blog article, github repo, mailing list
- Cypress FX2 docs:
- CY7C68013A, CY7C68014A, CY7C68015A, CY7C68016A datasheet (PDF)
- EZ-USB Technical Reference Manual (TRM) (PDF)
- EZ-USB FX2LP appnotes
- EZ-USB FX2LP errata
- GPIF Designer (Windows software, requires login)
- CY3681 EZ-USB FX2 Development Kit (GPIF designer downloadable without login)