Lup Yuen Lee 李立源 @lupyuen@social.cleverlibre.org

@PawelK Hi call me Lup (rhymes with "Up"), I'm just a geek in Singapore. Here's the story of my life 😉 ...

https://lupyuen.github.io/

I'm tied up with #RISCV #BL602 #LoRa projects right now ... Sorry I won't be able to help you much

Oops the Program Counter for our #RISCV Exception is null ... So there must be a missing Callback Function somewhere in our #LoRa #BL602 Firmware 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/lorarecv/customer_app/sdk_app_lora/sdk_app_lora/demo.c

#RISCV #BL602 PineCone, Pinenut and Pineseed @PINE64 are still in stock ... Phew 👍

https://pine64.com/product-category/iot/?v=0446c16e2e66

Zymbit HSM4 & HSM6 security modules work with embedded Linux hardware, Raspberry Pi, Jetson Nano

https://www.cnx-software.com/2021/03/20/zymbit-hsm4-hsm6-security-modules-work-with-embedded-linux-hardware-raspberry-pi-jetson-nano/

Our #BL602 Build, Flash and Run Firmware script generates the #RISCV Disassembly ... Let's track down the address of the RISC-V Exception

https://github.com/lupyuen/bl_iot_sdk/blob/lorarecv/customer_app/sdk_app_lora/run.sh

Aha! #BL602 hits a #RISCV Exception ... When processing the received #LoRa Packet! Let's follow these steps to troubleshoot...

https://lupyuen.github.io/articles/i2c#appendix-how-to-troubleshoot-risc-v-exceptions

Bill Gates: "I am innocent! The whole thing about 5G and microchips is pretty crazy. Why would I want to do that?" 😂

https://www.reddit.com/r/IAmA/comments/m8n4vt/im_bill_gates_cochair_of_the_bill_and_melinda/gri9hqj?utm_medium=android_app&utm_source=share&context=3

"Bill Gates: Ask Me Anything"

https://www.reddit.com/r/IAmA/comments/m8n4vt/im_bill_gates_cochair_of_the_bill_and_melinda/?utm_medium=android_app&utm_source=share

#RustLang Is Now One Step Closer To Entering The Mainline #Linux Kernel

https://linuxreviews.org/The_Rust_Programming_Language_Is_Now_One_Step_Closer_To_Entering_The_Mainline_Linux_Kernel

Hackers are exploiting #F5 BIG-IP #vulnerability with a severity of 9.8 out of 10

https://arstechnica.com/gadgets/2021/03/to-security-pros-dread-another-critical-server-vulnerability-is-under-exploit/

#PinePhone Beta Edition Pre-Orders

https://www.pine64.org/2021/03/19/beta-edition-pre-orders/

The Dual-Screen #Pinebook Pro

https://www.pine64.org/2021/03/19/dual-screen-pinebook-pro/

#LoRa Packet goes from #WisBlock Transmitter ... To #BL602 SX1276 Interrupt Handler ... To #FreeRTOS Task yay! Now we read the received LoRa Packet from SX1276 over SPI

https://github.com/lupyuen/bl_iot_sdk/blob/lorarecv/customer_app/sdk_app_lora/sdk_app_lora/demo.c

Let's use the Event Queue to forward the #LoRa Packet Received Interrupt ... From #BL602 Interrupt Handler ... To the #FreeRTOS Application Task

https://github.com/lupyuen/bl_iot_sdk/blob/lorarecv/customer_app/sdk_app_lora/sdk_app_lora/sx1276-board.c#L408-L441

Linus Torvalds on how AMD and Intel are changing how processor interrupts are handled

https://www.zdnet.com/article/linus-torvalds-on-how-amd-and-intel-are-changing-how-processor-interrupts-are-handled/