NGW/Known Issues

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Dataflash over SPI does not work with high speeds (33 MHz) [#5216]

Description: Trying to interface the dataflash on the NGW with the SPI at 33 MHz does not succeed in writing the data. The blocks seems to not be written. Erasing at 33 MHz is ok.

Steps to Reproduce:

1. Set the SPI max rating to 33 MHz (or 66 MHz which is the AT45DB642D max) 
2. Erase the dataflash 
3. Mount and put data on the dataflash 
4. Unmount and mount again Actual Results:  
The dataflash is empty after the second mount.

Expected Results: See that the dataflash containes the files that were copied in.

Workaround: Use only lower speed (20 MHz)

USB mass storage device incompatible with linux / samba

One can not use the NGW100 as a USB mass storage device and at the same time have the sd-card mounted in Linux (i.e. made available for Samba). This is due to the design of Linux' drivers.

The USB mass storage device driver accesses the device directly, and if Linux / Samba and USB both writes to the device, file system will get corrupt, most likely beyond repair.

Static version created: 2007-03-07
Copyright (c) 2007 Atmel Corporation