Rockbox Development > New Ports
SanDisk Sansa c200v2, m200v4, clipv1, clipv2, clip+, and fuzev2
funman:
I finally found what was wrong in the bootloader:
I was not incrementing the SDRAM pointer, so data would be overwritten after each sectors transfer; only if the requested sectors number was >= 128 (which it seems only happened in the bootloader)
I committed the (read and write) code in r19211 , with the DMA driver which will be used for I2SOUT (pcm playback) and perhaps I2SIN (pcm recording).
It will require some modifications though:
* Currently the end of transfer notification works only if 1 channel is active
* Unlike in SD transfers, the data flow needs to be controlled manually
* Maybe fix some bugs ..
Don't forget the major bug remaining : we can't access data past 1GB on the internal storage.
NOTE: LambdaCalculus37 reported his 2GB Clip is correctly detected as 2GB by rockbox.
I believe 2GB is the maximum theorical size on not High Capacity SD cards.
yapper:
--- Quote from: funman on November 25, 2008, 08:44:59 AM ---I believe 2GB is the maximum theorical size on not High Capacity SD cards.
--- End quote ---
I thought 4GB was the limit, but Wikipedia claims 8GB ???
Hillshum:
According to sdcard.org, 2gb is the non-hc limit
cosmocat:
the limit for sd card and microsd cards are differents.
sd card : 1GB, 2GB and 4GB
sdhc card : 4GB, 8GB, ...
but in our case, for a microsd card :
micro sd card : 1GB, 2GB
micro sdhc card : 4GB, 8GB...
if it could help...
philibuster:
According to sdcard.org it says "up to 2gb" for both micro and normal SD.
wikipedia (gasp) has a good writeup about the "openness" of the "standard" and says that all <1gb should work in every case, but SD supports up to 4gb with some hacking.
http://en.wikipedia.org/wiki/Secure_Digital_card#SD_.28non-SDHC.29_cards_with_greater_than_1_GB_capacity
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