[USRP-users] about saving signal into RAMdisk (Min)
marcus.mueller at ettus.com
Thu Dec 4 11:52:57 EST 2014
nice hearing from you!
I'll answer in text:
On 12/04/2014 09:13 AM, Tianyang Min wrote:
> And You Suggested me to save samples to a ramdisk.
> here I have three questions :
> 1. Do you mean that save the signal into PC's RAM or
> Save the signal into FPGA's RAM?
The PC's RAM.
> 2. if save to PC's RAM, how can I do that ?
I don't know what operating system or distribution you are using, but
this guide might help you:
> I used to save received signal into disk using file sink block in GRC
> for the case of saving into the RAM, what should I do ?
Save it to a file, but place this file in a filesystem that is not
stored on a disk but in RAM.
> 3. if save to FPGA's RAM, how can I access to the signal later on?
You can't save it to the N210's RAM. It's already used for
buffering, which is basically what you want.
> also, Is it necessary to add a new RAM into the FPGA, or just use
> the existed RAM inside FPGA?
you can't use the RAM in the N210.
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