Lup Yuen Lee 李立源 @lupyuen@qoto.org

#FPGA USB board with Cortex-M4F and open-source toolchain

https://www.cnx-software.com/2021/02/06/qomu-cortex-m4f-fpga-usb-board-is-programmable-with-symbiflow-open-source-toolchain/

#BL602 SPI Unsolved Mysteries ... How we fixed them on #PineCone + #Pinenut @PINE64 and other BL602 boards

https://lupyuen.github.io/articles/spi#unsolved-mysteries

#BL602 SPI Phase looks sus 🤔 ... Be careful when connecting the SPI Port on #PineCone + #Pinenut @PINE64 and other BL602 boards

https://lupyuen.github.io/articles/spi#spi-phase-looks-sus

#BL602 SPI Data Pins seem to be flipped 🤔 ... Here's how it impacts #PineCone + #Pinenut @PINE64 and all BL602 boards

https://lupyuen.github.io/articles/spi#spi-data-pins-are-flipped

#BL602 will let us configure ANY Pin as GPIO, SPI, I2C, UART, PWM or JTAG! Here's how we do it on #PineCone @PINE64

https://lupyuen.github.io/articles/spi#configure-chip-select-pin-as-gpio-output-pin

#LibreOffice tells businesses: Get off our Community version, you are hurting development

https://www.zdnet.com/article/open-source-libreoffice-tells-businesses-get-off-our-community-version-you-are-hurting-development/

Sometimes we do #BL602 SPI Chip Select ourselves ... Here's why we do it on #PineCone @PINE64

https://lupyuen.github.io/articles/spi#control-our-own-chip-select-pin

#OpenSource #SDR at #FOSDEM

https://fosdem.org/2021/schedule/track/free_software_radio/

Now let's do Indoor Positioning with a #TraceTogether Token 🤔

Locate your cat Indoors with #BluetoothLE Beacon, #ESP32 and #MachineLearning

https://github.com/filipsPL/cat-localizer

#Ubuntu on #RISCV 64-bit ... Supports #SiFive HiFive Unleashed and qemu

https://wiki.ubuntu.com/RISC-V

How we run the #BL602 SPI Demo Firmware ... On #PineCone and #Pinenut @PINE64

https://lupyuen.github.io/articles/spi#build-and-run-the-firmware

Fall detection and heart rate monitoring using AVR-IoT

https://www.hackster.io/naveenbskumar/fall-detection-and-heart-rate-monitoring-using-avr-iot-75fb16

#PineTime - Quick Review of #InfiniTime versions 0.11.0 and 0.12.0

https://www.ncartron.org/pinetime---quick-review-of-infinitime-versions-0110-and-0120.html

#FOSDEM Must-See Sessions! Today and tomorrow online

https://www.percona.com/blog/2021/02/05/fosdem-is-this-weekend-matt-yonkovits-must-see-sessions/

#FOSDEM goes online today and tomorrow

https://fosdem.org/2021/schedule/

#DMA gives #BL602 SPI a huge boost 🚀 ... Here's how it works on #PineCone #RISCV @PINE64

https://lupyuen.github.io/articles/spi#spi-with-direct-memory-access

How we Execute #BL602 SPI Transfers on #RISCV #PineCone @PINE64

https://lupyuen.github.io/articles/spi#execute-the-spi-transfers