Lup Yuen Lee 李立源 @lupyuen@qoto.org

How to Build #OpenOCD on Windows

https://shawnhymel.com/2168/how-to-build-openocd-and-picotool-for-the-raspberry-pi-pico-on-windows/

Weekly #Linux Phone news / media roundup

https://linmob.net/2021/04/18/linbits41-weekly-linux-phone-news-week15.html

"Does purchasing from #Pine64 help the company?"

https://www.reddit.com/r/PINE64official/comments/mtfq0x/does_purchasing_from_pine64_help_the_company/?utm_medium=android_app&utm_source=share

Take your first steps with #RustLang

https://docs.microsoft.com/en-us/learn/paths/rust-first-steps/

@AmpBenzScientist yep cool thanks!

Here's how we import #BL602 IoT SDK into our #RustLang Firmware ... Someday we shall auto-generate these wrappers with "bindgen" and a Rust Procedural Macro

https://github.com/lupyuen/bl_iot_sdk/blob/rust/customer_app/sdk_app_rust/rust/src/lib.rs#L59-L180

Here's our #RustLang Blinky Firmware for #RISCV #BL602 IoT SDK

https://github.com/lupyuen/bl_iot_sdk/blob/rust/customer_app/sdk_app_rust/rust/src/lib.rs

@AmpBenzScientist Maybe I should also clarify... Is it really a priority right now to reverse-engineer the BL602 WiFi/BLE stuff?

Well there are already commercial users of the Black Box BL602 WiFi/BLE... Like the MagicHome BL602 WiFi LED Controller.

So we can live perfectly without reverse-engineering the BL602 WiFi and BLE. Unless somebody has an open-source WiFi/BLE stack that they would like to run on BL602. (Which will be substantial porting effort)

Since the BL602 WiFi/BLE is working fine, and people are using it, I'm filling the the docs for the other parts that we don't know how to use: I2C, SPI, ...

That's why I'm not doing anything on WiFi/BLE right now, it's not a priority right now, we got other fires to fight (e.g. LoRa, Rust)

@AmpBenzScientist Well the reverse engineering is not quite complete... Let's understand the objective of this reverse engineering...

(1) Ideally we want all code inside BL602 to be open source. We would like to look at all parts of the code that control BL602, tweak it, replace if necessary.

(2) This means we should be able to replace the WiFi and BLE stack inside BL602 with open source ones.

(3) But the WiFi and BLE parts of BL602 are a Black Box right now. Yes we have the API for calling the WiFi and BLE functions. But we don't know how the API actually calls the WiFi and BLE controller. This is the libbl602_wifi.a WiFi Library that we need to reverse engineer: how the WiFi API is implemented.

(4) Then INSIDE the WiFi Controller we have a WiFi Blob. Likely based on RivieraWaves...

https://github.com/pine64/bl602-docs/tree/main/hardware_notes#rf-ip

(5) This WiFi Blob is another Black Box. The WiFi Blob contains some code running inside the controller that does the RF stuff. Not sure if this code is running on RISC-V.

(ESP32 has it's own WiFi Blob that we can't touch either)

(6) Is RivieraWaves code inside libbl602_wifi.a? Not sure, I don't think anybody has checked.

So to say that "BL602 WiFi and BLE" have been reverse engineered, we need to be sure that we understand all the BL602 WiFi and BLE stuff, and possibly overwrite by our own open source version. Right down to the code that controls the RF controller.

@AmpBenzScientist Here's the dump of the WiFi library to assembly...

https://github.com/pine64/bl602-re/tree/master/libbl602_wifi

@AmpBenzScientist The WiFi Blob to be reverse-engineered is here...

https://github.com/pine64/bl602-re/tree/master/blobs

Look for libbl602_wifi.a

This is the WiFi library that gets linked into the BL602 Firmware.

I wrote about it here...

https://lupyuen.github.io/articles/pinecone#reverse-engineer-the-bluetooth-le-and-wifi-drivers

@AmpBenzScientist Sorry for the confusion, what we need is actually to reverse engineer the blobs for BLE and WiFi.

Here's what we know so far, we haven't actually decompiled and recompiled the RF stack (which might be based on RivieraWaves)...

https://github.com/pine64/bl602-docs/tree/main/hardware_notes#rf-ip

#BL602 IoT SDK now supports Tencent Cloud

https://github.com/bouffalolab/bl_iot_sdk/tree/master/customer_app/bl602_demo_qcloud

@AmpBenzScientist Haha I'm an ancient man at 51! 🙂

Isn't the sdk_app_ble_sync source code here?

https://github.com/bouffalolab/bl_iot_sdk/tree/master/customer_app/sdk_app_ble_sync

7 years of #OpenSource #GoLang Database Development

https://www.philipotoole.com/7-years-of-open-source-database-development-lessons-learned/

Should I learn #Ada for #embedded development?

https://synack.me/ada/2021/03/18/should-i-learn-ada-for-embedded-development.html

Glacier UI for #PinePhone postmarketOS

https://youtu.be/Gxin52CVq24

New #LoRa Modules and Gateways by #RAKwireless

https://manage.kmail-lists.com/subscriptions/web-view?a=XYTWHS&c=01F2FWFZDA18YV4WSXE5VBMK9X&r=xswi97j&g=XbAGYN&k=64eeaff8c71948bbffa740db649eea0c&m=Va3kqG

Poppy Gustafsson: the Darktrace tycoon in new #Cybersecurity era

https://www.theguardian.com/business/2021/apr/17/poppy-gustafsson-the-darktrace-tycoon-in-new-cybersecurity-era