Lup Yuen Lee 李立源 @lupyuen@qoto.org

#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

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

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

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

#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

Creating #BL602 SPI Transfers ... On #RISCV #PineCone and #Pinenut @PINE64

https://lupyuen.github.io/articles/spi#transfer-spi-data

How we init the #BL602 SPI Port ... On #PineCone and #Pinenut @PINE64

https://lupyuen.github.io/articles/spi#initialise-spi-port

How #BL602 talks to BME280 over SPI ... On #PineCone and #Pinenut @PINE64

https://lupyuen.github.io/articles/spi#spi-protocol-for-bme280

Connecting #BL602 SPI to BME280 without Spooky LEDs ... On #PineCone @PINE64

https://lupyuen.github.io/articles/spi#connect-bl602-to-bme280-spi-sensor

Scares me every time

Nature Hazards in Singapore ... Lightning, Monkeys and Tree Branches

Good Morning Nature!

#BL602 SPI Hardware Abstraction Layer and its limitations ... Works on #PineCone + #Pinenut @PINE64 and all BL602 boards

https://lupyuen.github.io/articles/spi#bl602-hardware-abstraction-layer-for-spi

Decipher every #BL602 SPI Function we shall ... On #PineCone and #Pinenut @PINE64

https://lupyuen.github.io/articles/spi

Using the new SPI Names in our #BL602 #PineCone @PINE64 article ... Otherwise it will get obsolete real quick!

https://lupyuen.github.io/articles/spi#times-are-a-changin

#BL602 #SPI ... Now writing about the 4 fixes I made ... 1️⃣ SPI Data Pins are flipped 2️⃣ SPI Phase should be 1 (though it behaves like 0) 3️⃣ Doing SPI Chip Select ourselves 4️⃣ Pin 0 switches on WiFi LED. Thanks for bearing with this long thread on #PineCone @PINE64 🙏

https://lupyuen.github.io/articles/spi

#PineCone #BL602 @PINE64 with Acupuncture ... Erm Logic Analyser