faq
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faq [2020/03/09 12:44] voorburg |
faq [2022/05/09 11:12] voorburg |
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| The OpenBLT bootloader already has several security options build-in that can be easily enabled. Together with readily available add-on modules and a few extra configuration steps, your system can be fully secured. Have a look at [[https://www.feaser.com/en/blog/?p=245|this blog article]], which lists the available security options and explains in detail how to enable them. | The OpenBLT bootloader already has several security options build-in that can be easily enabled. Together with readily available add-on modules and a few extra configuration steps, your system can be fully secured. Have a look at [[https://www.feaser.com/en/blog/?p=245|this blog article]], which lists the available security options and explains in detail how to enable them. | ||
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| + | **__Can the OpenBLT bootloader update itself?__** \\ | ||
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| + | Yes, this is possible. It involves the creation of a secondary OpenBLT bootloader, derived from the same source code. You can find details and step-by-step instructions in [[https://www.feaser.com/en/blog/2022/05/how-to-update-the-openblt-bootloader-itself/|this blog article]]. | ||
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| + | Note though that updating the bootloader itself comes with a risk. If something goes wrong during this procedure (for example an unexpected power loss or communication glitch), you might be left with a system that has no bootloader at all. | ||
| **__What is the ROM footprint of the bootloader?__** \\ | **__What is the ROM footprint of the bootloader?__** \\ | ||
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| Tips and tricks on further reducing the ROM footprint of the bootloader can be found in [[https://www.feaser.com/en/blog/?p=174|this blog article]]. | Tips and tricks on further reducing the ROM footprint of the bootloader can be found in [[https://www.feaser.com/en/blog/?p=174|this blog article]]. | ||
| - | **__What are the ROM footprints of the OpenBLT add-on modules??__** \\ | + | **__What are the ROM footprints of the OpenBLT add-on modules?__** \\ |
| The [[https://www.feaser.com/en/addons.php#encryption|firmware encryption]] module requires about 1800 bytes, the [[https://www.feaser.com/en/addons.php#checksum|improved checksum]] module about 700 bytes and the [[https://www.feaser.com/en/addons.php#gateway|master/slave gateway]] module about 900 bytes. We dedicated an entire [[https://www.feaser.com/en/blog/?p=347|blog article]] to this topic to give you more details. | The [[https://www.feaser.com/en/addons.php#encryption|firmware encryption]] module requires about 1800 bytes, the [[https://www.feaser.com/en/addons.php#checksum|improved checksum]] module about 700 bytes and the [[https://www.feaser.com/en/addons.php#gateway|master/slave gateway]] module about 900 bytes. We dedicated an entire [[https://www.feaser.com/en/blog/?p=347|blog article]] to this topic to give you more details. | ||
faq.txt ยท Last modified: 2024/02/15 14:43 by voorburg
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