What makes PinePhone a phone? Because it will make Phone Calls and send
Text Messages! Today we turn NuttX on PinePhone into a Feature Phone…
1. Outgoing and Incoming Phone Calls over 4G
2. Send and receive SMS Text Messages
3. Why we prefer Encoded PDU Messages for SMS
4. Programming the 4G
In olden times we had Computer Games (plus Operating Systems) on 5.25-inch
Floppy Disks. And we’d boot the Floppy Disks (clackety-clack) on Apple II
Computers with 64 KB RAM.
Today (40 years later) we boot microSD Cards (clickety-click) on Ox64 BL808
RISC-V Single-Board Computers with 64 MB RAM.
integrated on apps/ to run inside MCUs
> with much memory (like STM32 with external SDRAM), ESP32, BL808, etc.
>
> Best Regards,
>
> Alan
>
> On Sat, Feb 3, 2024 at 8:08 PM Lee, Lup Yuen wrote:
>
> > Today we're running NuttX Emulator inside a Web Browser. What if
NuttX has an awesome driver for ROM FS Filesystem. What if we could
transplant the NuttX Driver and run it in a Web Browser, embedded in any
WebAssembly App?
Today we solve a hefty headache in our port of TCC Compiler to WebAssembly:
Missing C Header Files...
(1) We host the C Header Files in a
QuickJS is a small JavaScript Engine that supports POSIX Functions. Can we
run QuickJS on NuttX? And Blink the LED in 4 lines of JavaScript?
const ULEDIOC_SETALL = 0x1d03;
const fd = os.open("/dev/userleds", os.O_WRONLY);
os.ioctl(fd, ULEDIOC_SETALL, 1);
os.ioctl(fd, ULEDIOC_SETALL, 0);
gt;
> I had intended to support 6LoWPAN with Bluetooth radios too, but never
> got around to it.
>
> On 12/16/2023 5:03 PM, Lee, Lup Yuen wrote:
> > Pine64 Ox64 BL808 (64-bit RISC-V SBC) is now supported in NuttX Mainline!
> > (Many thanks to my reviewers)
> >
> > Ox64 BL8
Pine64 Ox64 BL808 (64-bit RISC-V SBC) is now supported in NuttX Mainline!
(Many thanks to my reviewers)
Ox64 BL808 is an affordable $8 SBC with:
- 3 x RISC-V Cores (T-Head 64-bit / 32-bit)
- Networking: Ethernet, WiFi, Bluetooth LE, Zigbee
- Peripheral Interfaces: UART (Serial), I2C, SPI, USB,
Hi yf: Kendryte K230 sounds really cool! (Dual-core T-Head C908 64-bit
RISC-V with NPU)
I'm now upstreaming to NuttX Mainline a similar board (Pine64 Ox64 SBC with
Bouffalo Lab BL808 SoC and T-Head C906). These links might be helpful:
PR for BL808 SoC: https://github.com/apache/nuttx/pull/11371
> yf
>
>
>
>
> Original
>
>
>
> From:"Lee, Lup Yuen"< lu...@appkaki.com ;
>
> Date:2023/12/10 7:11
>
> To:"dev"< dev@nuttx.apache.org ;
>
> Subject:[Article] NuttX on Ox64 BL808 RISC-V SBC: Fixed the UART
> Interruptand Platform-
Last week we walked through the Serial Console for Pine64 Ox64 BL808 64-bit
RISC-V Single-Board Computer. And we hit some illogical impossible problems
on NuttX for Ox64:
(1) Console Input is always empty. (Can’t enter any Console Commands)
(2) Interrupt Claim is forever 0. (Ox64 won’t tell us
Happy New Year! 2024 is here and we’re running NuttX on Single-Board
Computers with plenty of RAM. Like Pine64 Ox64 BL808 SBC with 64 MB RAM!
In this article, we create a Blinky LED app with a Python-like,
Garbage-Collected Language that compiles to C: Nim Programming Language.
Garbage-Collected
nfortunately Pine 0x64 doesn't ship to Brazil (probably many buyers let
> the boards return after getting notified of higher taxes from Brazilian
> Customs).
>
> Best Regards,
>
> Alan
>
> On Sat, Dec 9, 2023 at 8:11 PM Lee, Lup Yuen wrote:
>
> > Last week we w
+1 for Ox64, Star64 and PinePhone
= Ox64 Compiler
+ riscv64-unknown-elf-gcc -v
Using built-in specs.
COLLECT_GCC=riscv64-unknown-elf-gcc
NuttX now boots and runs inside a Web Browser! (With WebAssembly)
Try "ostest" here: https://lupyuen.github.io/nuttx-tinyemu
This article explains how we…
(1) Boot NuttX in the Web Browser with TinyEMU RISC-V Emulator
(2) Modify NuttX for HTIF Console (Berkeley Host-Target Interface)
(3) Explore
/login/
>
> Is it possible to get network enabled and use it to communicate? It could
> open new possibilities!
>
> BR,
>
> Alan
>
>
> On Sat, Jan 13, 2024 at 8:30 PM Lee, Lup Yuen wrote:
>
> > NuttX now boots and runs inside a Web Browser! (With
gt;
> [
> https://opengraph.githubassets.com/4259c40e0ffc51679b0d2f48e65e04e9821afb513a3d978f91a3fb2ceb8bb188/lupyuen/nuttx-ox64/releases/tag/nuttx-ox64-2024-01-11
> ]<https://github.com/lupyuen/nuttx-ox64/releases/tag/nuttx-ox64-2024-01-11
> >
> Release nuttx-ox64-2024-01-11
Do you think it is possible to find an alternative to use the users'
> browser connection to communicate to the Internet?
> This way it avoids users' consumption of all internet limits on the server
> side.
>
> BR,
>
> Alan
>
> On Sun, Jan 14, 2024 at 4:17 AM Lee, Lup
In Asia the wise folks say: “One can hide on a certain day but cannot hide
for a long time / 躲过初一，躲不过十五”
In other words: “Transformers? More than meets the eye!”
In this article, we go behind the shadow puppetry (wayang kulit) and
deceptive simplicity of NuttX Applications inside Apache NuttX
Our article today is all about RISC-V Interrupts on the tiny adorable
Pine64 Ox64 BL808 64-bit Single-Board Computer (based on Bouffalo Lab BL808
SoC)…
(1) What’s inside the Platform-Level Interrupt Controller (PLIC)
(2) Setting up the PLIC at startup
(3) Enabling the PLIC Interrupt for Serial
ations, I think it could be very useful if integrated with CI.
>
> We could find many issues that aren't detected currently.
>
> Best Regards,
>
> Alan
>
> On Sat, Jan 27, 2024 at 8:05 PM Lee, Lup Yuen wrote:
>
> > Every day we’re auto-building NuttX for Ox64 BL80
Every day we’re auto-building NuttX for Ox64 BL808 RISC-V SBC... Can we
test NuttX on Ox64 automatically after building?
Yes we can! With a little help from the Ox64 BL808 Emulator that we created
last week. In this article, we fill in the missing pieces of our Ox64
Emulator and run it for
Today we're running NuttX Emulator inside a Web Browser. What if we could
build and test NuttX Apps in the Web Browser? Learning NuttX becomes so
cool!
Let's explore with TCC (Tiny C Compiler) for 64-bit RISC-V, compiled to
WebAssembly with Zig Compiler...
(1) Zig Compiler compiles TCC Compiler
Memory Management Unit (MMU) is the hardware inside our Single-Board
Computer (SBC) that implements Memory Protection and Virtual Memory.
Sv39 is the RISC-V MMU inside the Pine64 Ox64 SBC, based on Bouffalo Lab
BL808 SoC.
In this article, we boot NuttX on Ox64 SBC to find out how Sv39 MMU works
Thanks Ken! Yep you read my mind, I'll write about NuttX Apps in the next
article:
(1) What's inside the simplest "Hello World" app
(2) How NuttX Apps call NuttX Kernel with "ecall"
(3) Bundling the NuttX Apps into the Initial RAM Disk (initrd) for Ox64
BL808 SBC. (We'll append the initrd to the
On Sun, Nov 12, 2023 at 7:37 AM Tomek CEDRO wrote:
> On Sun, Nov 12, 2023 at 12:18 AM Lee, Lup Yuen wrote:
> > Last week we booted Linux on the Pine64 Ox64 64-bit RISC-V SBC, powered
> by
> > Bouffalo Lab BL808 SoC. And we wondered if a tiny 64-bit RTOS like NuttX
> > might run
Last week we booted Linux on the Pine64 Ox64 64-bit RISC-V SBC, powered by
Bouffalo Lab BL808 SoC. And we wondered if a tiny 64-bit RTOS like NuttX
might run more efficiently on Ox64. (With only 64 MB of RAM)
Let’s make it happen! In this article we...
(1) Begin with NuttX for Star64 JH7110
ting it further!
> >
> > BR,
> > Alan
> >
> > On Mon, Jan 15, 2024 at 2:34 AM Lee, Lup Yuen wrote:
> >
> > > << Do you think it is possible to find an alternative to use the users'
> > > browser connection to communicate to the Internet? This way it
Hi Pavel: I'm sorry the GSoC Proposal Submission has closed last week.
Though Shijo is still keen to do NanoX on NuttX in his spare time.
I asked Shijo to bounce some ideas with you. If you could help him, that
would be great. Thanks :-)
Lup
On Tue, Apr 9, 2024 at 1:48 PM Pavel Pisa wrote:
>
Last article we were compiling Rust Apps for NuttX QEMU (RISC-V 32-bit).
And we hit a baffling error…
"Can't link Soft-Float modules with Double-Float modules"
Let’s solve the problem! In this article we dive inside the internals of
C-to-Rust Interop…
(1) Rust compiles for Soft-Float, NuttX
een phosphor effect, how did you do it?
>
> Best Regards,
>
> Alan
>
> On Sat, Apr 20, 2024 at 7:41 PM Lee, Lup Yuen wrote:
>
> > Last article we were compiling Rust Apps for NuttX QEMU (RISC-V 32-bit).
> > And we hit a baffling error…
> >
> > "C
Thank you so much Greg! I'll copy and paste the relevant sections into the
NuttX Docs.
Lup
On Fri, May 3, 2024 at 10:04 PM Gregory Nutt wrote:
> On 5/3/2024 2:12 AM, Lee, Lup Yuen wrote:
> > https://lupyuen.github.io/articles/pr#check-coding-style
> Nice article. This would be
Please welcome Mr Rushabh Gala to the NuttX Community!
He's a Third-Year Student at Mumbai University (Computer Science and
Engineering). For Google Summer of Code, I'll work with him on Rust Apps
for NuttX.
(Which includes the Rust Wrapper for the POSIX Functions in NuttX)
He's new to NuttX,
Will Rust Apps run on a 64-bit RISC-V SBC? Like Ox64 BL808 SBC? Let’s find
out!
(1) We take a Barebones Rust App (“Hello World!”)
(2) Compile it for QEMU RISC-V Emulator (64-bit)
(3) Run it on QEMU Emulator with NuttX
(4) Do the same on Ox64 BL808 SBC (via MicroSD)
(5) We’ll discuss the
Hi Janardhan: I have an article that explains the "nxstyle" tool, maybe
this will help?
https://lupyuen.github.io/articles/pr#check-coding-style
I'm not aware of a script that does auto-formatting for NuttX Code. I do it
manually in VSCode :-)
Lup
On Fri, May 3, 2024 at 3:24 PM Janardhan
Pine64's new PineVox Smart Speaker looks interesting, it runs on Bouffalo
Lab's BL606P 64-bit RISC-V SoC. Which is very similar to Ox64 BL808, so it
might boot NuttX!
This article explains the current steps for running barebones Rust Apps on
NuttX and the challenges we faced:
(1) How we compile Rust Apps for NuttX
(2) Running NuttX and Rust Apps on QEMU RISC-V Emulator
(3) Console Input and Output for Rust on NuttX
(4) Software vs Hardware Floating-Point and
C. Assis wrote:
> Very nice article!
>
> I think it should be nice to take a look at the Rustix project again, it
> will avoid these 'extern "C" ' for each function on NuttX.
>
> BR,
>
> Alan
>
> On Sat, Apr 6, 2024 at 7:57 PM Lee, Lup Yuen wrote:
>
+1 for Ox64, Star64 and PinePhone
= Ox64 Compiler
+ riscv64-unknown-elf-gcc -v
Using built-in specs.
COLLECT_GCC=riscv64-unknown-elf-gcc
+1 for Ox64, Star64 and PinePhone
= Ox64 Compiler
+ riscv64-unknown-elf-gcc -v
Using built-in specs.
COLLECT_GCC=riscv64-unknown-elf-gcc
gives a kind of rosetta stone to interop basic rust with
> C and the usual toolchains, which I did not see anywhere else (I did not
> search for long).
>
> I'll keep it as a reference doc.
>
> Thanks,
>
> Sebastien
>
> Le 07/04/2024 à 00:56, Lee, Lup Yuen a écrit :
&
Remember MakeCode? BBC micro:bit and its Drag-n-Drop App Builder? MakeCode
for BBC micro:bit is an awesome creation that’s way ahead of its time (7
years ago!)
- TypeScript Compiler and Arm Assembler in the Web Browser (in JavaScript!)
- Custom Embedded OS (CODAL + Mbed OS)
- micro:bit Simulator
to create NuttX
> applications!
>
> Best Regards,
>
> Alan
>
> On Sat, Feb 24, 2024 at 7:03 PM Lee, Lup Yuen wrote:
>
> > Remember MakeCode? BBC micro:bit and its Drag-n-Drop App Builder?
> MakeCode
> > for BBC micro:bit is an awesome creation that’s way ahead
While porting QuickJS to Ox64 BL808 SBC, we hit a Baffling Crash Dump on
NuttX. Which made us ponder...
Is there a better way to analyse a NuttX Crash Dump? Without scrolling
pages and pages of logs?
In this article, we create a real-time NuttX Log Parser that will:
(1) Extract the RISC-V
Lup!
>
> Fantastic work! And nice board to run NuttX
>
> On Sat, May 18, 2024 at 7:50 PM Lee, Lup Yuen wrote:
>
> > Soon we’ll see many new 64-bit RISC-V SBCs based on the Sophgo SG2000
> > RISC-V SoC. Will they boot NuttX? Let’s find out…
> >
> > (1)
Soon we’ll see many new 64-bit RISC-V SBCs based on the Sophgo SG2000
RISC-V SoC. Will they boot NuttX? Let’s find out…
(1) We boot Linux on Milk-V Duo S (with SG2000)
(2) Peek inside SG2000 Linux and observe how it boots
(3) Then we take NuttX for RISC-V (Ox64 BL808)
(4) Tweak NuttX Kernel to
Thanks YF! That's a very cool concept for RISC-V code: 64-bit architecture
with 32-bit pointers. In case we need to use RV64ILP32 for NuttX, do you
happen to have the patched source code to support RV64ILP32?
Your recent PRs are very interesting, perhaps other folks here might like
to comment:
Hi Mark: Thanks for watching my presentation! To show the Heap Logs, I
enabled "Build Setup > Debug Options > Enable Debug Features > Memory
Manager Debug Features". Here's the complete definition (I hope it's
applicable to your platform)...
<<
Symbol: DEBUG_MM_INFO
Type : boolean
Prompt:
Last week we upstreamed Milk-V Duo S SBC to NuttX Mainline. (Based on
Sophgo SG2000 RISC-V SoC) But NuttX Mainline changes every day. Will Milk-V
Duo S suffer “Software Bit Rot”? And fail to boot NuttX someday?
Let’s do Daily Automated Testing for NuttX on a Milk-V Duo S. Yep on the
Actual
Hi Rushabh: Thank you so much for your kind words, excellent feedback and
awesome contributions to NuttX Kernel and Apps!
I'll definitely work harder to make NuttX Onboarding easier for new
learners :-)
Lup
On Mon, Jul 8, 2024 at 6:37 PM RUSHABH GALA wrote:
> Greetings everyone!
>
> I am
Earlier this year we made a RISC-V Emulator for Ox64 BL808 SBC. Every day
we run it for testing the Daily NuttX Build for Ox64, thanks to our
customised TinyEMU RISC-V Emulator. (Not the small flightless bird)
Now that NuttX supports Sophgo SG2000 SoC: Let’s create a similar emulator
for Pine64
Lup!
>
> Another great article! I want to test my Milk-V Duo S soon!!!
>
> BR,
>
> Alan
>
>
> On Sat, Jul 6, 2024 at 7:18 PM Lee, Lup Yuen wrote:
>
> > Earlier this year we made a RISC-V Emulator for Ox64 BL808 SBC. Every day
> > we run it for testing
Hi All: I'm very sorry for the delay. Let me explain what Rushabh is doing,
under my close supervision. He listed these GSoC Tasks in his post:
<< Ported the LED Blinky App from C to Rust >>
The means Rushabh took the `leds` Example in C, and created a New Example
in Rust called `blink_rust`:
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