Lup Yuen Lee 李立源 @lupyuen@qoto.org

#BL602 SPI lets you shape the SPI Clock

https://lupyuen.github.io/articles/spi#hal_spi_dma_init-init-spi-dma

#BL602 SPI Hardware Abstraction Layer explained

https://lupyuen.github.io/articles/spi#appendix-inside-bl602-spi-hal

Good Morning RAKwireless

https://store.rakwireless.com/products/wisblock-connected-box

Sipeed Tang Nano #FPGA with GOWIN Tools

http://jborza.com/hardware/2021/02/06/my-third-fpga.html

Will #BL602 SPI Functions run on other #Embedded Operating Systems? Yes ... If we emulate these FreeRTOS Functions

https://lupyuen.github.io/articles/spi#port-bl602-spi-hal-to-other-operating-systems

How we use a Logic Analyser to troubleshoot #BL602 SPI Port

https://lupyuen.github.io/articles/spi#appendix-troubleshoot-bl602-spi-with-logic-analyser

How to test BME280 over SPI with Bus Pirate

https://lupyuen.github.io/articles/spi#appendix-test-bme280-spi-interface-with-bus-pirate

nRF52840 + SX1262 #LoRa in a single module wow!

https://docs.rakwireless.com/Product-Categories/WisBlock/RAK4631/Datasheet/

Too awesome .... Thank you so much RAKwireless ! 😀

https://store.rakwireless.com/products/wisblock-connected-box

#Git Commands I learned during my first year as a software developer

https://towardsdatascience.com/git-commands-cheat-sheet-software-developer-54f6aedc1c46

#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/