Comments (7)
Work in progress is here: https://github.com/mossmann/luna/tree/hw-r0.6
from luna.
Can you add pin headers to target d- and d+ lines?
from luna.
Can you add pin headers to target d- and d+ lines?
We're not going to be keen to do that, because those lines are used for high-speed differential data, and stubs are a problem for signal integrity. We already have some short stubs in the D+/D- passthrough to connect the target PHY, but they've been minimised as much as possible.
What would you want to do with headers on those pins? In the r0.6 layout there is already a connection for the FPGA to directly sense the target D+/D- signals via some resistors, so if you want to do additional monitoring of those pins, that can be done via the FPGA.
from luna.
There are some cases when you need to put some extra circuit on these lines temporarily for example: https://www.huaweinewos.com/huawei-harmonyos-support-harmony-tp-cable.html
In this case you need to put two pull-ups on the data lines till the fastboot loads then you can remove them and use the usb as normal.
from luna.
There are some cases when you need to put some extra circuit on these lines temporarily for example: https://www.huaweinewos.com/huawei-harmonyos-support-harmony-tp-cable.html In this case you need to put two pull-ups on the data lines till the fastboot loads then you can remove them and use the usb as normal.
We won't be adding a D+/D- pin header in r0.6 for the signal integrity reason @martinling mentioned and also due to lack of board area and time (we have already had r0.6 prototype PCBs made). Harmony TP interfacing will have to be done with an external cable or by soldering resistors to the through-hole TARGET A pins.
If you implement the USB communication with Cynthion (not a passthrough host), you could use the additional TARGET port as a place to plug in a small resistor circuit instead of using a special cable.
from luna.
Design validation by hardware bring-up progress:
- scope +3V3
- scope +2V5
- scope +1V1
- scope 60 MHz clock
- check idle current
- SWD via J10
- SWD via J6
- RESET button
- PROGRAM button
- CONTROL USB switch
- Apollo USB data
- program FPGA via Apollo
- debug LEDs
- FPGA LEDs
-
interactive-test.py
-
bulk_in_speed_test.py
on TARGET C -
bulk_in_speed_test.py
on AUX - CONTROL/AUX power input diode OR
- CONTROL overvoltage shutoff
- AUX overvoltage shutoff
- TARGET C VBUS passthrough on/off
- CONTROL VBUS passthrough on/off
- AUX VBUS passthrough on/off
- TARGET C VBUS passthrough on by default while powered off
- TARGET C VBUS passthrough on by default while powered on
- CONTROL VBUS passthrough off by default
- AUX VBUS passthrough off by default
- VBUS passthrough up to 21 V
- VBUS passthrough up to 3 A
- write to SPI flash
- configure FPGA from flash
- high speed USB data passthrough
-
bulk_in_speed_test.py
on CONTROL - USER button
- J10 power input
- CONTROL CC Rd
- TARGET C Type-C controller I2C
- TARGET C CC I/O
- TARGET C CC Rd while powered off
- TARGET C CC Rd while powered on
- TARGET C CC overvoltage shutoff
- TARGET C SBU overvoltage shutoff
- TARGET C SBU I/O
- AUX Type-C controller I2C
- AUX CC I/O
- AUX CC Rd while powered off
- AUX CC Rd while powered on
- AUX C CC overvoltage shutoff
- AUX C SBU overvoltage shutoff
- AUX SBU I/O
- power monitor I2C
- CONTROL power monitor
- AUX power monitor
- TARGET A power monitor
- TARGET C power monitor
- CONTROL power input shutoff
- AUX power input shutoff
- PMOD A
- PMOD B
- MEZZANINE
- USB analysis
- CONTROL USB reset detection
- TARGET D+/D- monitor
- +3V3 current up to 1 A
-
hyperram_diagnostic.py
- FPGA->MCU interrupt
- TARGET A VBUS discharge
from luna.
closing as this (and more) has been merged to: https://github.com/greatscottgadgets/cynthion-hardware
from luna.
Related Issues (20)
- Find Substitution for AP22811, as it is FAULTY HOT 12
- possability of adding Discussions HOT 1
- Question: alternate protocol support HOT 10
- Question: Luna as a USB-UART bridge HOT 1
- Move documentation from Wiki to docs folder
- Add issue templates to this repository
- Failed to run command poetry install HOT 1
- tinyusb_soc.py - ValueError: Memory map has been frozen HOT 3
- litex bios build fails with a missing directory error HOT 2
- Cannot install from git HOT 4
- applets/interactive-test.py needs prompt_toolkit package HOT 1
- gateware.usb.usb2.device tests failing HOT 1
- poetry install fails to resolve dependencies HOT 1
- "Part offset must be unsigned" error
- Beagle analyzer shows orphaned packets when using CDC ACM interface HOT 8
- can't install luna in ubuntu 22.04 HOT 3
- Release luna 0.1.0
- Add support for using ECP5 DQS logic in HyperRAM interface
- what the different repo luna and cynthion HOT 4
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from luna.