svd2nim
ThinkpadBattery
svd2nim | ThinkpadBattery | |
---|---|---|
7 | 6 | |
17 | 243 | |
- | - | |
4.5 | 0.0 | |
4 months ago | almost 2 years ago | |
Nim | C++ | |
MIT License | MIT License |
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svd2nim
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Memory-mapped IO registers in Zig. (2021)
Nim's maintainer agrees with you I believe, and the API is as you suggest (volatileLoad and volatileStore): https://nim-lang.org/docs/volatile.html
However, under the hood, Nim compiles to C. So these are macros that typecast to volatile, does the read (or write), then casts back to non-volatile.
(Small plug for my nim project that is somewhat related to OP: https://github.com/EmbeddedNim/svd2nim)
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New embedded programming language with C as a host language
C++ has decent industry acceptance in embedded nowadays, or at least that has been my impression.
After C++, rust is likely the most popular, quite a lot of effort has been put into running rust on embedded, see eg https://github.com/rust-embedded. However, once again to my understanding, industry acceptance is still highly marginal.
After that, there's a bunch of toy-ish efforts to run other languages. Zig, nim, python and javascript variants, etc. Usually anything that has C ABI compatibility should be possible to get up and running (without writing a compiler backend from scratch). I've had fun with some toy projects using nim for ARM cortex-M targets (https://github.com/EmbeddedNim/svd2nim, https://github.com/auxym/nim-on-samd21, https://github.com/EmbeddedNim/picostdlib).
Using Nim (and eg svd2nim to generate the equivalent of CMSIS headers for register access in pure nim), it would be entirely possible to write even the low level stuff (SPI drivers and whatnot) in 100% nim, with the same performance as C and better safety (better static type system and compile-time checks, etc). Runtime (eg overflow) checks and garbage collection are available (at the cost of some performance) but optional. See eg. a pretty basic higher-level API for GPIO access, that provides native performance, since the abstraction is implemented as macros (compile-time abstraction): https://github.com/auxym/nim-on-samd21/blob/master/src/port....
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specify address of a variable
Any chance your MCU is ARM? If so check out my project to generate the register mappings from CMSIS SVD files: https://github.com/EmbeddedNim/svd2nim
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Emulator of Original Dell Charger Using ATTINY85
To be clear: Ratel isn't my project, just something I'm following due to interest.
In the interest of shameless self promotion :), my own experimentations are :
https://github.com/EmbeddedNim/svd2nim
https://github.com/auxym/nim-on-samd21
And I've used and contributed to picostdlib (https://github.com/beef331/picostdlib), the rp2040 support library.
All just as a hobby, but it's interesting to learn that some companies are actually looking into Nim for firmware! Embedded seems like such a slow moving industry. I believe the author of Nesper and Nephyr also developed them for professional work.
- Ask HN: What's Your Side Project?
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An Embedded USB Device Stack in Ada
Many vendors provide svd files which describe the hardware registers. It's possible to convert the svd automatically like they do for C. Here's an example for Nim [1]. Rust has one as well.
Though I agree that MCU's currently involve a lot of busy work. It's why I'm working on building a nice system building on Zephyr using Nim [2]. It's pretty great to write a few dozen lines of concise memory safe code to do somethinguseful, and then be able to run it on dozens different MCUs.
It'd be great if there was more Ada core in these systems, as Zephyr is all built in C. At least it's modern clean C and well tested.
1: https://github.com/EmbeddedNim/svd2nim
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Writing embedded firmware using Rust
If you're curious, I have this in MVP status at the moment: https://github.com/auxym/svd2nim
ThinkpadBattery
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New battery project for lenovo t420
But do you guys know if I can reuse the case of original battery? If yes, I will only need the bms of this third parts battery. There is also some 3D-printing files for new cases :https://github.com/iam4722202468/ThinkpadBattery
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I cloned an IBM ThinkPad battery from scratch for the 701C and open-sourced everything; AMA.
It's very possible, I almost finished building a board based on the bq3060 charging IC but stopped because it could potentially be dangerous if I made a mistake and I'm not super knowledgeable in this field. Most of the work is done, someone who knows what they're doing could easily finish the design and get it manufactured https://github.com/iam4722202468/ThinkpadBattery/tree/master/KiCad/bq3060
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Emulator of Original Dell Charger Using ATTINY85
See also the from-scratch Thinkpad battery with an ATTiny85: https://github.com/iam4722202468/ThinkpadBattery
- [HELP] Can't update capacity after recelling
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Thinkpad t420
I recently came across a project on github for a thinkpad battery. however, the image he provided made the battery look rather bulky. I was wondering if I could redo this project qwith the same hardware, except using a more streamlined case. does anyone know of a mockup/3d model of the thinkpad t420 battery?
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How hard is to use older thinkpads battery for custom projects?
Yes: https://github.com/iam4722202468/ThinkpadBattery
What are some alternatives?
rp2040_hal - Ada drivers for the Raspberry Pi RP2040 SoC
picostdlib - Nim wrapper for the raspberry pi stdlib
probe-run - Run embedded programs just like native ones
Pi_Teensy_Laptop - Convert a Sony Vaio into a Portable Raspberry Pi and Teensy laptop
micronucleus - ATTiny usb bootloader with a strong emphasis on bootloader compactness.
kcgi - minimal CGI and FastCGI library for C/C++
ThinkpadBattery - Open source Thinkpad T420 battery design
nephyr - Nim wrapper for Zephyr
dell-charger-emulator - Emulator of original Dell charger using ATTINY85
dotfile - Simple version control made for tracking single files
stm32f429i-disc - Rust BSP crate for the STM32F429I-DISC development board