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How to get this hardware form JLCPCB #1
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Hi @AcSully |
ok, understand, I want to mount them directly on the PCB in JLCPCB |
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@AcSully But the USB hub has wrong footprint. I can help you with this later. Right now i have no access to my computer. But first het an Altium account and install CircuitMaker. I write later. Am at a party right now. Cannot write clearly. |
Have fun guys. I have already registered this account(Altium 365). |
First you need to download the project from CircuitMaker repository. If you want, I can give you acceess to change the footprint. All I need is your account email of Altium 365. Everything else is working fine. |
My email of Altium 365(sully.niu@outlook.com), I don't know how to change the footprint. Can you help me to change this? |
It's very easy to change the footprint. All you need to do is to replace the schematic symbol of the USB hub. Then the footrpint will update automaticly. But you need to change the tracks as well. Few mm only. |
@AcSully i have shared to sully.niu@outlook.com) now. |
I downloaded CircuitMaker and opened the project. What to do next? |
Yes. You need to find another schematic symbol for USB1514B. It's very easy. Then the footprint will be updated. But you need to route some new tracks as well on the PCB. Have you writing access? Or only reading access? |
Only reading access. The hardware is too difficult for me, I should not be able to proceed further. |
It's super easy to change the symbol. Just delete it and ad a new symbol with correct footprint . The problem is that the current footprint of USB2514B is a rectangle. It should be a square. |
ok, for hardware beginners, i will do my best and let you know result. |
There is a free made ready to use library already. It the the same schematic symbol. Only the footprint is correct. |
@AcSully We need first to see the footprint in the PCB Editor of CircuitMaker |
@AcSully |
I select joMicrochip USB2514B-AEZC. The footprint is square. And saved in the USB_HOST. Show me the footprint @AcSully |
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@AcSully This is the footprint that I used. |
Understand. I find a new footprint, it seems ok. The model size is smaller. And I can't move notOC1 etc. I update the PCB by using Update Project button, some errors. |
That's correct footprint. To be 100% sure, you can measure it by using ctrl+m (measure) and compare to the footprint. Use automatically Create Component List. Then your old footprint will disappear and you need to place the new footprint at the same place as the new one + extend the tracks. It's not a big job. |
I tried to be consistent with your USB_HOST schematic, please confirm. |
@AcSully |
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@AcSully |
Thanks you. Already updated on PCB. The PCB is smaller than before. |
Nice! Tune in the tracks. Make sure you are carefully with the differential pairs. The must have the same length +-0.5mm. Move the U3 silk as well so it won't touch any pads. Vias shall be on the large pads. E.g 3x3 square. |
Have you save and upload? |
Good, fix those. They should have the same value as the schematic. The gerber files are at your Altium365. |
@DanielMartensson , dawn is right in front of me. |
Yes it must be configured during export. But I have done that. Anyway! It's very easy to add the outline. Not a big task. |
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I have re-generate the gerber files. Thank you for the update. Also I made one movement for the left diff-track of the USB2514B. So it more equal as the right diff track. |
Please help confirm the component models of SB1-4 and F1. I saw this below, but I still want to solder it all. |
F1 is a PTC fuse for safety reasons.if you get a shortcut for example. The PTC fuse will block the current. The solder bridges does not need to be soldered. Do that manually if you want to configure the USB2514B at the start up manually. It's recommended to use automatic configuration. |
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If you don't have the PTC. Current won't flow. |
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If it has the same parameters as the PTC from mouser. Then, it's OK. |
Did it work? |
@DanielMartensson |
Good! Can you fork this project and upload some pictures of the PCB board when it's done? :) That would be very helpful. |
@DanielMartensson The F2 value is PTC FUSE 3.0A. The description is 2.6A, which one is correct? Finally I chose this model(0ZCG0300FF2B). |
You can use 2.6A if you want. |
@DanielMartensson |
That's OK. The processor only take about 100 mA. The PTC is only for short cut e.g USB device failure. |
@DanielMartensson |
Any update ? |
@DanielMartensson |
Yes. At the beginning of the opening of the micro usb. It's bent downwards. To avoid this. Move the footprint e.g 1 mm to the right in X-axis. You need to extend the differential pars too. But it still will work, egen if you solder it as the current footprint shows. |
@DanielMartensson |
@DanielMartensson |
@AcSully very nice. I think you can load in STM32-OS now. |
@AcSully |
@DanielMartensson |
@AcSully |
@AcSully |
@DanielMartensson |
How can I get this board step by step? I don’t know much about hardware, thanks a lot
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