Honored Contributor
Honored ContributorHi rick,
<div class='quotetop'>QUOTE </div> --- Quote Start --- Have you tried reading you CF card with an USB reader connected to PC and see how fast it can read it? (make sure you try with a high-speed USB read of course ;o)[/b] --- Quote End --- No, I haven't tried using a CF reader to test the transfer speeds. However, according to SanDisk, the maximum transfer speeds to/from the CF is 9/10 MBytes/sec., respectively. However, I'm not sure uClinux IDE interface can achieve those transfer speeds. <div class='quotetop'>QUOTE </div> --- Quote Start --- Are you really fixed with the NIOS board and SMSC91C111? SMSC just brought out new chips with better throughput and also supporting 16/32 bit interfaces...[/b] --- Quote End --- Yes, using the DSP development kit (Stratix II edition) board fits our needs well since it has all the basic components we need for a proof-of-concept system. Even if the SMSC91C111 isn't the latest and greatest Ethernet transceiver chip, it will have to do. I'm just trying to determine what kinds of transfer speeds we can expect when using the 100BaseT ethernet on this board to offload our test data. <div class='quotetop'>QUOTE </div> --- Quote Start --- And...if you only want to send files from CF card to PC...why do you need to run on uClinux? How about embedded TFTP server?[/b] --- Quote End --- We need the Nios II controller to provide some basic command/control functions to some custom circuitry that will be running on the rest of the Stratix II. Since we don't currently own any of the commercial OS's (OS II, Nucleus, etc.) using uClinix seemed a nice fit since all the other components required for the system are also on the dev. board (in-circuit Flash, SDRAM, etc.). Is there an option to run to run a TFTP server on uClinux to save the kernel memory footprint? I don't recall seeing a choice for TFTP when configuring the kernel options. Thanks for your input rick. Brad.
