pour one out for this fallen soldier 🫡
July 7, 2025 at 5:55 PM
pour one out for this fallen soldier 🫡
hey quick question
what drugs were the RMII people on
multiplexing a fully asynchronous signal (CRS) with a fully synchronous signal (DV) to get this weird... half-asynchronous-half-synchronous thing where *some* rising edges are referenced to REF_CLK and some are not, but all falling edges are
what drugs were the RMII people on
multiplexing a fully asynchronous signal (CRS) with a fully synchronous signal (DV) to get this weird... half-asynchronous-half-synchronous thing where *some* rising edges are referenced to REF_CLK and some are not, but all falling edges are
June 16, 2025 at 6:26 PM
hey quick question
what drugs were the RMII people on
multiplexing a fully asynchronous signal (CRS) with a fully synchronous signal (DV) to get this weird... half-asynchronous-half-synchronous thing where *some* rising edges are referenced to REF_CLK and some are not, but all falling edges are
what drugs were the RMII people on
multiplexing a fully asynchronous signal (CRS) with a fully synchronous signal (DV) to get this weird... half-asynchronous-half-synchronous thing where *some* rising edges are referenced to REF_CLK and some are not, but all falling edges are
aaand we're off! Final feature set is OEM drive optional, uSD card, WiFi+BLE, I2C+SPI/2xUART expansion, RMII expansion, USB recovery mode, all in just over 1 square inch
September 2, 2023 at 12:41 AM
aaand we're off! Final feature set is OEM drive optional, uSD card, WiFi+BLE, I2C+SPI/2xUART expansion, RMII expansion, USB recovery mode, all in just over 1 square inch
April 2, 2025 at 8:35 PM
check out how straightforward the code is!
core of the controller: github.com/GlasgowEmbed...
wrapper that makes it an applet: github.com/GlasgowEmbed...
core of the controller: github.com/GlasgowEmbed...
wrapper that makes it an applet: github.com/GlasgowEmbed...
[WIP] An applet for communicating using an Ethernet RMII/RGMII PHY by whitequark · Pull Request #562 · GlasgowEmbedded/glasgow
Remaining work before I'm willing to un-draft this, in no particular order:
put the very (almost but not quite excessively) clever IODelay into its own module
make RX/TX IO delay configurabl...
github.com
June 7, 2025 at 5:02 AM
check out how straightforward the code is!
core of the controller: github.com/GlasgowEmbed...
wrapper that makes it an applet: github.com/GlasgowEmbed...
core of the controller: github.com/GlasgowEmbed...
wrapper that makes it an applet: github.com/GlasgowEmbed...
Flippydrive panels arrived! Can't test till tomorrow since there's at least one BOM oops I need to swap out, but they went from using an SE card to being the size of an SD card while picking up RMII and doubling the wifi bandwidth
September 13, 2023 at 11:43 PM
Flippydrive panels arrived! Can't test till tomorrow since there's at least one BOM oops I need to swap out, but they went from using an SE card to being the size of an SD card while picking up RMII and doubling the wifi bandwidth
RasPi PicoにBit bangでUSBやRMIIを実装する人たちがいる。
もはや常人のものさしでは測れないな。
もはや常人のものさしでは測れないな。
March 11, 2024 at 6:30 AM
RasPi PicoにBit bangでUSBやRMIIを実装する人たちがいる。
もはや常人のものさしでは測れないな。
もはや常人のものさしでは測れないな。
April 2, 2025 at 8:34 PM
I made a little phy board for the flippydrive. Concept is a very short RMII run jumps over from the main board, and 10/100 Ethernet proper is carried to a jack placed in SP2, rear IO shield, or future thing. Ethernet will be more tolerant of the longer run than RMII, but testing will be needed
September 9, 2023 at 7:10 PM
I made a little phy board for the flippydrive. Concept is a very short RMII run jumps over from the main board, and 10/100 Ethernet proper is carried to a jack placed in SP2, rear IO shield, or future thing. Ethernet will be more tolerant of the longer run than RMII, but testing will be needed
Yeah the SPI interfacing ones are around 4 euros, though if you have a MAC the RMII ones are in the 2-3 euro range. :)
November 2, 2025 at 3:16 PM
Yeah the SPI interfacing ones are around 4 euros, though if you have a MAC the RMII ones are in the 2-3 euro range. :)
Alright, so the plan is a little sub board with the RMII PHY physically near the flippydrive and post-transformer Ethernet running to a jack on a custom rear IO panel or hidden away in SP2. Hopefully the 10cm RMII jump won't cause problems
September 7, 2023 at 8:01 PM
Alright, so the plan is a little sub board with the RMII PHY physically near the flippydrive and post-transformer Ethernet running to a jack on a custom rear IO panel or hidden away in SP2. Hopefully the 10cm RMII jump won't cause problems
oh, wie wunderbar, das erinnert mich an meine königsfelder kindheit, aber wachteln ist ja toll, ich kenne sie aus den schmetterlingsfarmen der bismarcks in hamburg, wo sie am boden herumrennen und wie in südlichen ländern insekten picken www.youtube.com/watch?v=rmII...
Garten der Schmetterlinge - Schmetterlingspark in Friedrichsruh bei Aumühle
YouTube video by Hierher
www.youtube.com
June 7, 2026 at 12:24 PM
oh, wie wunderbar, das erinnert mich an meine königsfelder kindheit, aber wachteln ist ja toll, ich kenne sie aus den schmetterlingsfarmen der bismarcks in hamburg, wo sie am boden herumrennen und wie in südlichen ländern insekten picken www.youtube.com/watch?v=rmII...
Maybe I should try projectposting on here?
Anyway, this seems to be working, so I guess I need to do the fully integrated version with a GPS module now.
Anyway, this seems to be working, so I guess I need to do the fully integrated version with a GPS module now.
![Screenshot of dmesg:
usb 3-12.4.3: new high-speed USB device number 66 using xhci_hcd
usb 3-12.4.3: New USB device found, idVendor=0b95, idProduct=772b, bcdDevice= 0.02
usb 3-12.4.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-12.4.3: Product: grandmaster-on-a-stick
usb 3-12.4.3: Manufacturer: isentropic.systems
usb 3-12.4.3: SerialNumber: 000000
PTP clock support registered
asix 3-12.4.3:1.0 (unnamed net_device) (uninitialized): PHY [usb-003:066:01] driver [TI DP83620 10/100 Mbps PHY] (irq=POLL)
TI DP83620 10/100 Mbps PHY usb-003:066:01: attached PHY driver (mii_bus:phy_addr=usb-003:066:01, irq=POLL)
asix 3-12.4.3:1.0 eth1: register 'asix' at usb-0000:80:14.0-12.4.3, ASIX AX88772B USB 2.0 Ethernet, 00:00:10:00:1d:02](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:pb2azeyq42t6kypbyafktoig/bafkreigtesarhymzrezijbcsi3laudfywib7hrj6aag46jfsmngljfbjxi)
February 28, 2026 at 2:29 PM
Maybe I should try projectposting on here?
Anyway, this seems to be working, so I guess I need to do the fully integrated version with a GPS module now.
Anyway, this seems to be working, so I guess I need to do the fully integrated version with a GPS module now.
Cool blog about creating an RMII interface with the Pi Pico PIO:
http://www.scaprile.com/2023/02/05/on-hardware-state-machines-how-to-write-a-simple-mac-controller-using-the-rp2040-pios/
Could be a fun project to create a Rust crate for
http://www.scaprile.com/2023/02/05/on-hardware-state-machines-how-to-write-a-simple-mac-controller-using-the-rp2040-pios/
Could be a fun project to create a Rust crate for
June 11, 2023 at 9:10 AM
Cool blog about creating an RMII interface with the Pi Pico PIO:
http://www.scaprile.com/2023/02/05/on-hardware-state-machines-how-to-write-a-simple-mac-controller-using-the-rp2040-pios/
Could be a fun project to create a Rust crate for
http://www.scaprile.com/2023/02/05/on-hardware-state-machines-how-to-write-a-simple-mac-controller-using-the-rp2040-pios/
Could be a fun project to create a Rust crate for
💡 Summary by GPT3:
pico-rmii-ethernet_nceリポジトリは、Sandeep Mistryによるpico-rmii-ethernetライブラリのフォークであり、データ転送速度の向上やシステムクロックの選択の柔軟性などの改良がされています。このライブラリは、送信と受信用のDMA駆動リングバッファを使用し、リソース利用の詳細が提供されています。カスタマイズオプションも利用可能ですが、最高のパフォーマンスを得るためには、RP2040 SRAMから直接実行する必要があります。このライブラリは主にCとCMakeで書かれています。
pico-rmii-ethernet_nceリポジトリは、Sandeep Mistryによるpico-rmii-ethernetライブラリのフォークであり、データ転送速度の向上やシステムクロックの選択の柔軟性などの改良がされています。このライブラリは、送信と受信用のDMA駆動リングバッファを使用し、リソース利用の詳細が提供されています。カスタマイズオプションも利用可能ですが、最高のパフォーマンスを得るためには、RP2040 SRAMから直接実行する必要があります。このライブラリは主にCとCMakeで書かれています。
September 1, 2024 at 9:43 PM
💡 Summary by GPT3:
pico-rmii-ethernet_nceリポジトリは、Sandeep Mistryによるpico-rmii-ethernetライブラリのフォークであり、データ転送速度の向上やシステムクロックの選択の柔軟性などの改良がされています。このライブラリは、送信と受信用のDMA駆動リングバッファを使用し、リソース利用の詳細が提供されています。カスタマイズオプションも利用可能ですが、最高のパフォーマンスを得るためには、RP2040 SRAMから直接実行する必要があります。このライブラリは主にCとCMakeで書かれています。
pico-rmii-ethernet_nceリポジトリは、Sandeep Mistryによるpico-rmii-ethernetライブラリのフォークであり、データ転送速度の向上やシステムクロックの選択の柔軟性などの改良がされています。このライブラリは、送信と受信用のDMA駆動リングバッファを使用し、リソース利用の詳細が提供されています。カスタマイズオプションも利用可能ですが、最高のパフォーマンスを得るためには、RP2040 SRAMから直接実行する必要があります。このライブラリは主にCとCMakeで書かれています。
Eu urgentemente preciso de uma viagem de umas booooas horas só pra eu ler RM e RMII
September 25, 2024 at 9:17 PM
Eu urgentemente preciso de uma viagem de umas booooas horas só pra eu ler RM e RMII
Raspberry Pi Pico does line rate 100M Ethernet Discussion
GitHub - rscott2049/pico-rmii-ethernet_nce
Contribute to rscott2049/pico-rmii-ethernet_nce development by creating an account on GitHub.
github.com
August 29, 2024 at 4:40 PM
Raspberry Pi Pico does line rate 100M Ethernet Discussion
