Download Notes for Future Users

P11207 Project Transfer Notes
Module Usage
The 900 MHz wireless module can be used to send data in chunks up to 64 KB in length.
PC-to-module data is physically sent over USB link, but written to using a COM port emulation driver.
Software communication is done like any other standard COM port (use BINARY mode, not TEXT).
All data must begin with special headers (see software protocol document on EDGE).
Files on edge.rit.edu
On EDGE are the schematics, PCB layouts, and microcontroller software (among other documents).
Schematics/PCBs were created in PCB Artist.
(Revision 4 was produced. Revision 5 has fixes for any future production.)
Boards were fabricated by Advanced Circuits, assembled by hand at SMT lab in CIMS.
Microcontroller software was written in C in IAR Embedded Workbench.
Code is compiled to .hex files in IAR, which are downloaded to the CC1111 chip.
(Flash Programmer (or IAR) software and TI CC Debugger needed to download to the board.)
Known Issues
Hardware Issues (all have been fixed on Schematic/Layout revision 5)
 The crystal oscillator pinout was wrong. Fixed on current boards by rotating part 90 degrees.
 Pull-up resistor R1264 connects to wrong end of R1262. No effects were noticed.
 Top/bottom ground planes have been narrowed to avoid the housing rails.
Software Issues
 If data is sent too fast (exact rate unknown) over USB to board, some data is lost.
 Current solution is to limit the send rate in the PC/remote software.
 Rewriting the microcontroller code may reduce or fix this issue.
Inventory
All modules, plus components and tools (CC Debuggers, TI evaluation modules), are in Design Center
locker #15 (at table, not along wall) (combination: 8-34-00) as of 2/21/2011.
Team Contacts
Ryan Toukatly:
Trey Minarcin:
Erwan Suteau:
Pete Franz:
[email protected]
[email protected]
[email protected]
[email protected]