SD GPS Track Logger

Why? This is why:Bicycling Trips

ICSP Connector

Need a PIC18 chip with more memory, I'm using the PIC18F4685 with 96Kbytes of program memory.

Microchip Mass Storage Class Firmware

Still not working

Still not working. Might be software or hardware, I'll need to check it on a digital oscilloscope.

Correct clock rate (less than 400KHz).

prodmanualsdcardv1.9.pdf

MDD File System V1.00 with PIC18F working? - Microchip forum post


Hardware

DM163025 PicDEM USB Demo Board

picdem_fs_usb_demonstration_board_users_guide.pdf

Will be useful for future projects, however the included processor, the PIC18F4550 does not have enough memory for the filesystem library from Microchip.

AC164122 PICtail Board for SD & MMC

SD and MMC Cards PICtail Daughter Board Info Sheet

FunctionI/OPinDescription
SCKORB1SPI Clock Out
SDIIRB0SPI Data In
SDOORC7SPI Data Out
CDIRB4Physical Card Insertion Detect Signal
WDIRA4Physical Write-Protect Switch Status Signal
CSORB3Low Asserting SPI Chip Select

Activity LED is tied to Chip Select line.


Datasheets

Reference

 
projects/electronics/sdgpslogger.txt · Last modified: 2014/11/13 10:50 (external edit)
 
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