From: David Boddie <david@boddie.org.uk>
To: 9fans <9fans@9fans.net>
Subject: Re: [9fans] building blocks speaking 9p
Date: Fri, 28 Jan 2022 23:23:35 +0100 [thread overview]
Message-ID: <2665128.melU8dvpTR@aurora> (raw)
In-Reply-To: <20220128214628.B2BD4804471@smtp.hushmail.com>
I'll try and write something useful about it this weekend, and I'll push
a branch up to BitBucket/GitLab:
https://bitbucket.org/dboddie/inferno-os/branches/
https://gitlab.com/dboddie/inferno-os/-/branches
However, it basically boils down to this:
* Build Inferno's tc and tl since they are not included in the default
build.
* Fix the tl mkfile so that it calls the executable tl not 5l.
* Write a mkfile with all the rules for 5a, tc and tl, setting the text
address to 0x08000000 (flash) and data to 0x20000000 (RAM).
* Write a loader file to set up the stack and static base registers, copy
data into RAM, and jump into main.
I have some functions for setting up clocks, GPIOs and the USART. This is
currently in a separate repository for bare metal tests. I'll push that up
to GitLab.
David
On Friday, 28 January 2022 22:46:28 CET Tony Mendoza wrote:
> Any interest in sharing those hints for building bare metal STM32F405
> code om plan9?
> T
> On 1/28/2022 at 3:34 PM, david@boddie.org.uk wrote:On 2022-01-28
>
> 2:55:00, Thaddeus Woskowiak wrote:
> > One compiler that we really need is an arm thumb 2 compiler for
>
> cortex-m/r
>
> > microcontrollers. Inferno has a very old and very incomplete arm
>
> thumb 1
>
> > compiler, tc. I don't know if it's worth salvaging.
>
> I am using 5a/tc/tl to build bare metal code for a STM32F405 MCU
> thanks
> to some hints from Charles Forsyth.
>
> I'm currently trying to add FP support and learn about compiler
> internals.
> It also means learning about Thumb-2, which is quite alien for an
> old-school
> ARM coder.
>
> David
> 9fans / 9fans / see discussions + participants + delivery
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next prev parent reply other threads:[~2022-01-28 22:23 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-27 22:57 Bakul Shah
2022-01-28 2:55 ` Thaddeus Woskowiak
2022-01-28 3:31 ` Lucio De Re
2022-01-28 5:16 ` Bakul Shah
2022-01-28 10:16 ` Lucio De Re
2022-01-28 19:01 ` Charles Forsyth
2022-01-28 21:26 ` Bakul Shah
2022-01-28 21:37 ` Eli Cohen
2022-01-28 20:54 ` Tony Mendoza
2022-01-28 20:59 ` Tony Mendoza
2022-01-28 21:03 ` ori
2022-01-28 21:07 ` Tony Mendoza
2022-01-28 21:06 ` Eli Cohen
2022-01-28 21:16 ` Tony Mendoza
2022-01-28 21:27 ` Eli Cohen
2022-01-28 21:33 ` david
2022-01-28 21:46 ` Tony Mendoza
2022-01-28 22:23 ` David Boddie [this message]
2022-01-29 1:04 ` Lyndon Nerenberg (VE7TFX/VE6BBM)
2022-01-29 2:08 ` David Boddie
2022-01-29 3:36 ` Tony Mendoza
2022-01-29 18:03 ` David Boddie
2022-01-29 2:32 ` Thaddeus Woskowiak
2022-01-29 20:04 ` [9fans] aiju boards Lyndon Nerenberg (VE7TFX/VE6BBM)
2022-01-28 19:32 ` [9fans] building blocks speaking 9p Kent R. Spillner
2022-01-28 4:54 ` ori
2022-01-28 20:55 ` Lyndon Nerenberg (VE7TFX/VE6BBM)
2022-01-29 9:16 ` Skip Tavakkolian
2022-01-29 11:56 ` Frank D. Engel, Jr.
2022-01-29 12:14 ` Frank D. Engel, Jr.
2022-01-29 12:30 ` Frank D. Engel, Jr.
2022-01-29 13:24 ` cinap_lenrek
2022-02-15 3:07 ` Lyndon Nerenberg (VE7TFX/VE6BBM)
2022-01-29 20:53 Lyndon Nerenberg (VE7TFX/VE6BBM)
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