Hi everyone,
I have an E320 which does not autoboot. I am trying to activate it. When I
searched documents for this, I found that there are flags on the
microcontroller that controls autoboot. The document says "eeprom-set-flags
0x1" activates the autoboot function, however it does not work. I have seen
that I might need to update firmware for this problem, but my boardversion
is already 7. Therefore, when I tried to update mcu firmware, it said it
cannot find necessary files for version 7. As I understand it, my mcu is
already updated to the latest.  Can anyone help me activate the autoboot
function?

My Board : USRP E320
UHD Version: 4.0.0
MCU Update Files: mcu_neon
https://files.ettus.com/binaries/misc/upgrade_mcu_neon_v1.1.7358-a190641-musl-glibc-rev3-6.tar.gz

Kind Regards,
Yasir

Hi Yasir,

I also have some E320 units which are rev 7 and were delivered about a month ago – they do not have newest firmware flashed into the MCU’s RO image, which I believe is what matters for auto-boot. You can confirm the version by using the USB connection to the microcontroller’s command-line interface, and enter the “version” command. Here’s what I get:

Chip:    stm stm32f07x
Board:  7
RO:      neon_v1.1.7353-e8a05419f
RW:      neon_v1.1.7358-a190641b3
Build:  neon_v1.1.7358-a190641b3
2019-10-11 15:41:40 a@xaphan

So, I believe you need to go through the process of updating the MCU’s RO firmware. As far as I remember, this requires removing the board from the case and temporarily flipping an internal dipswitch. If you’re not familiar with this process, I’d encourage you to directly reach out to Ettus support and they can confirm the process for you.

Hope this helps,
David

From: Yasir Özçalık simultaneous11@gmail.com
Sent: Monday, January 23, 2023 3:13 AM
To: usrp-users usrp-users@lists.ettus.com
Subject: [USRP-users] E320 Autoboot

Hi everyone,
I have an E320 which does not autoboot. I am trying to activate it. When I searched documents for this, I found that there are flags on the microcontroller that controls autoboot. The document says "eeprom-set-flags 0x1" activates the autoboot function, however it does not work. I have seen that I might need to update firmware for this problem, but my boardversion is already 7. Therefore, when I tried to update mcu firmware, it said it cannot find necessary files for version 7. As I understand it, my mcu is already updated to the latest.  Can anyone help me activate the autoboot function?

My Board : USRP E320
UHD Version: 4.0.0
MCU Update Files: mcu_neonhttps://files.ettus.com/binaries/misc/upgrade_mcu_neon_v1.1.7358-a190641-musl-glibc-rev3-6.tar.gz

Kind Regards,
Yasir