Author Topic: Some experiences with Flash cards  (Read 1118 times)

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Offline Petari

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Some experiences with Flash cards
« on: 02-04-2016, 13:18:43 »
Here can write your experiences, problems, speed test results with diverse Flash cards. Mostly related with usage with Ataris and clones.

I bought cheaper 16 GB Sandisk Ultra, it claims 80 MB/s read speed, write speed is not given, so probably not too good.
Testing on PC with IDE-SD adapter gives:  read speed 25 MB/s,  write speed 10 MB/sec . That 25 MB/sec is certainly adapters max speed - got same with basic 16 GB SD card too, which can 5 MB/s in write.
So, we could say that this is too good for Ataris. Unfortunately, things with UltraSatan are not so good. Actually, this Sandisk Ultra 16 GB is slowest card so far I seen with UltraSatan - read speed only about 790-850 KB/sec .  Somehow UltraSatan works not well with faster cards, what is something I observed years ago, and even reported to Jookie.
Would be good if people could post here some results with CosmosEx and SD cards.
Speed test SW:   http://atari.8bitchip.info/ahpt.html

I will soon do some tests with CATA prototype and IDE-SD adapter(s) and some SD cards.


Offline Anemos

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Re: Some experiences with Flash cards
« Reply #1 on: 06-04-2016, 22:08:32 »
main US + 8GB MicroSD  Toshiba class 4
 Quick test
C: (similar results about D, E, : ect  HD,s.. )

Short files: 27/   7 KB/s
Medium: 338/   138KB/s
Long: 512/ 430 Kb/s

Error =0   Acc time: 37.0Ms
My system: Atari STE 4MB, OS: SuperTOS 2.06, HD: US/disk 4gb SDcard ,ppera v0.98 HD drivers, USB mouse adapter by me, PSX controller joy adapter by me,  full list of adaption,s games by Petari.
Second Atari machine: 1040 STF
Other: 2X Lilliput Atari 130 XE

Offline ataricrypt

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Re: Some experiences with Flash cards
« Reply #2 on: 07-04-2016, 17:20:22 »
Combined Read/Write Tests
Test = Both (clicked and highlighted)
Short files = 50/ 6kb/s
Medium files = 512/ 144kb/s
Long files = 825/ 304kb/s
-
Logical Drives - Transfer rate = 915kb/s
Logical Drives - Access time = 9.4ms

Card :
SanDisk Ultra
"40mb/sec"
8GB
SDHC I (might be a "1" instead of "I"?)
10 (in a circle?)

Machine :
Atari Mega STe
TOS 2.06 / 4MB Ram / Ultrasatan
AtariCrypt . . stay cool & stay ATARI ST
Atari MEGA STe | Atari STe | MiNT OS 1-19 Aranym OS X