On 2021-10-26 23:14, zeyuan...@zengyi-tech.com wrote:
Excuse,could you tell me where can I find mpm.conf file in N310 system
file ?
You absolutely shouldn't need to modify the MPM configuration to use
external LO.
I don't happen to know off the top of my head, but it gets started as
usrp-hwd by systemd.
Find /usr -name "usrp-hwd.conf" when you're logged in to it should find it.
But, I must emphasize AGAIN. To use external LO, you don't need to
modify MPMs configuration at all.
You just need the correct device arguments when you're creating the USRP
device within your application.
谢谢，有任何问题请随时与我联系！
——————————————————————
李泽远|研发工程师
北京曾益科技有限公司
手机：13121162044
地址：北京市海淀区中关村大街中关村SOHO 1108
网址：_www.zengyi-tech.com <http://www.zengyi-tech.com>_
*发件人:*Marcus D. Leech <patchvonbr...@gmail.com>
*发送时间:*2021年10月26日22:49
*收件人:*zeyuan...@zengyi-tech.com; usrp-users@lists.ettus.com
*主题:*Re: 答复: [USRP-users] Re: 答复: Re: How to use External LO on N310
device?
On 2021-10-26 00:09, zeyuan...@zengyi-tech.com wrote:
Do you mean that I need to change MPM config files, and than
reboot the N310 ?
Does the N310 LO source will be changed to external when I
complete these above steps ?
No, you don't have to reconfigure MPM.
But look at the table of device arguments--there's a 'rx_lo_source'
argument that must be set to "external". This is what Michael Dickens was
talking about in his reply to you yesterday.
If this still doesn't work, please share with us the pieces of code
that you are using to set-up external LO ,so that we might spot any
errors in that
code.
谢谢，有任何问题请随时与我联系！
——————————————————————
李泽远|研发工程师
北京曾益科技有限公司
手机：13121162044
地址：北京市海淀区中关村大街中关村SOHO 1108
网址：_www.zengyi-tech.com <http://www.zengyi-tech.com>_
*发件人:*Marcus D. Leech <patchvonbr...@gmail.com>
<mailto:patchvonbr...@gmail.com>
*发送时间:*2021年10月26日11:40
*收件人:*zeyuan...@zengyi-tech.com; usrp-users@lists.ettus.com
*主题:*[USRP-users] Re: 答复: Re: How to use External LO on N310
device?
On 2021-10-25 22:22, zeyuan...@zengyi-tech.com wrote:
I used TWICE frequency. But it doesn’t work.
Have you tried successfully already?
Spend some time with the online documentation for the N310 here:
https://files.ettus.com/manual/page_usrp_n3xx.html#n3xx_usage
There are device arguments you must pass to get the external LO to
work.
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