Using python’s asn1tools library, I was able to convert our example to ASN.1 UPER encoding. It’s the smallest one of all. :-) I suspect this is because UPER uses a bitfield to indicate which of the op

The following files have been uploaded to the Files area of the tech-config@... group. /2021-04-12 Meeting Minutes.pptx By: Abner Chang <renba.chang@...> Description: 4/12 Meeting minutes The followin

The following files have been uploaded to the Files area of the tech-config@... group. /2021 Meetings/2021-04-12 Configuration Structure Task Group Slides.pdf By: Tim Newsome <tim@...>

Hi all! We have our regular meeting this Monday. I'll presenting what I've learned about ASN.1 so far. It still looks promising but I haven't gotten to the point where I have actual numbers yet. Tim t

The following files have been uploaded to the Files area of the tech-config@... group. /2021 Meetings/2021-03-29 Meeting Minutes.pptx By: Abner Chang <renba.chang@...> Description: 3/29 Meeting Minute

Sigh - another thing to look at: https://rainway.com/blog/2020/12/09/bebop-an-efficient-schema-based-binary-serialization-format/ I suspect it is not intended to do what we're trying to do.

Philipp Tomsich mentioned ASN.1 as yet another possible encoding format. It's a mature standard with lots of optional features and wide language support. It supports all the data types we might need,

The following files have been uploaded to the Files area of the tech-config@... group. /2021 Meetings/2021-03-29 Configuration Structure Task Group Slides.pdf By: Tim Newsome <tim@...>

Hello! We're having our usual meeting this Monday. Hopefully we can edit https://docs.google.com/document/d/1UcTjYirKsytc6Oa3puNqfjAyeYs3KbuD2SOtehvLMqk/edit?usp=sharing so it's ready for wider feedba

At the last meeting we decided to take a last look at any existing formats that might be more compact than protobuf. I spent almost an hour and found absolutely nothing. Lack of email indicates nobody

The following files have been uploaded to the Files area of the tech-config@... group. /2021 Meetings/2021-03-15 Meeting Minutes.pdf By: Abner Chang <renba.chang@...> Description: 2021-3-15 meeting mi

Hi all! We'll have our usual meeting this Monday. Not that daylight savings time starts here in the Pacific zone this weekend, so double check the starting time. (9am Pacific) Hopefully we can make so

For a while now we've been going around in circles regarding using protobuf or a custom binary format. The formats have in common: 1. A schema description, which describes what magic numbers to use fo

Hi all! We'll have our regular meeting this Monday. We'll go over criteria to use to decide between protobuf and custom formats, then see how they stack up, and discuss what needs to happen next to ma

It was asserted in today's meeting that an internal ROM is highly cost constrained in small systems. A contra-example are the entire series of STM32-based microcontrollers, all of which have integrate

At the last meeting it was requested that I write up the main differences between the protobuf and custom binary formats. This list might not be exhaustive: 1. custom uses bits, while protobuf uses by

The following files have been uploaded to the Files area of the tech-config@... group. /2021 Meetings/2021-03-01 Meeting Minutes.pdf By: Abner Chang <renba.chang@...> Description: 2021/3/1 meeting min

maybe we are too early for this discussion but I favor not having to do code snippets to see if something traps, etc. I liked krste's words around eventually having all discovery of extensions and the

The following files have been uploaded to the Files area of the tech-config@... group. /2021 Meetings/2021-03-01 Configuration Structure Task Group Slides.pdf By: Tim Newsome <tim@...>

https://github.com/riscv/riscv-zfinx/blob/master/Zfinx_spec.adoc I’ve made a big update to the Zfinx spec to separate out extensions, so instead of [FDQ]+Zfinx we now have Z[FDQ]inx, so it’s no longer