# EEPROM or LimeSDR

**URL:** <https://discourse.myriadrf.org/t/eeprom-or-limesdr/1788>\
**Category:** LimeSDR\
**Created:** [5 October 2017 09:05 UTC](https://discourse.myriadrf.org/t/eeprom-or-limesdr/1788 "2017-10-05T09:05:28Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![b.shubenok](https://avatars.discourse-cdn.com/v4/letter/b/aeb1de/32.png) [@b.shubenok](https://discourse.myriadrf.org/u/b.shubenok)\
**Post date:** [5 October 2017 09:05 UTC](https://discourse.myriadrf.org/t/eeprom-or-limesdr/1788/1 "2017-10-05T09:05:28Z")

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What the purpose of EEPROM connected to LMS transceiver? As long as I understand it may be used to work without any external DSP/FPGA. But Is it used any how in LimeSDR-USB/LimeSDR-mini?

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**Author:** ![Zack](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/zack/32/89_2.png) [@Zack](https://discourse.myriadrf.org/u/Zack)\
**Post date:** [5 October 2017 09:10 UTC](https://discourse.myriadrf.org/t/eeprom-or-limesdr/1788/2 "2017-10-05T09:10:48Z")

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Hi @b.shubenok,

It is used to store LMS7002M MCU firmware if needed.

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**Author:** ![b.shubenok](https://avatars.discourse-cdn.com/v4/letter/b/aeb1de/32.png) [@b.shubenok](https://discourse.myriadrf.org/u/b.shubenok)\
**Post date:** [5 October 2017 09:29 UTC](https://discourse.myriadrf.org/t/eeprom-or-limesdr/1788/3 "2017-10-05T09:29:03Z")

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I understand what it was designed for. But is it used in LimeSDR? For example, if I’ll design my board using LimeSDR as a reference should I keep it - transceiver would not work properly without firmware - or I can remove it without any damage to transceiver functionality?

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**Author:** ![Zack](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/zack/32/89_2.png) [@Zack](https://discourse.myriadrf.org/u/Zack)\
**Post date:** [5 October 2017 12:25 UTC](https://discourse.myriadrf.org/t/eeprom-or-limesdr/1788/4 "2017-10-05T12:25:16Z")

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Hi @b.shubenok,

Ah, now I see. Transceiver will work without firmware.