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Custom CP2104 PCB Not working
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Custom CP2104 PCB Not working

by kowshik1729 on Tue Jun 16, 2020 3:09 pm

Rev_1.pdf
Schematic Capture of my Design
(40.76 KiB) Downloaded 26 times

Hi guys,

I have made a custom PCB using ESP32-Wroom 32 SoC. I have used a CP2104 USB-UART bridge to program the SoC. But when I connect my board into the computer it is not getting recognized and the says an error like "Device Descriptor request failed" . I had searched a lot regarding this and I can't find anything on this. I have attached my schematics below, I don't think so there are any wrongs with my schematics. The entire board is getting powered up correctly but CP2104 is not getting recognized.

I've been knocking my head since a week on this issue. Please help me out.

kowshik1729
 
Posts: 2
Joined: Wed Jun 27, 2018 1:20 pm

Re: Custom CP2104 PCB Not working

by jps2000 on Tue Jun 16, 2020 4:06 pm

May be you have crossed DP and DN on the USB conn? The symbol seems faulty. Check it physically on the board

jps2000
 
Posts: 559
Joined: Fri Jun 02, 2017 4:12 pm

Re: Custom CP2104 PCB Not working

by kowshik1729 on Wed Jun 17, 2020 6:11 am

jps2000 wrote:May be you have crossed DP and DN on the USB conn? The symbol seems faulty. Check it physically on the board



Yeah many people has questioned me this. So, what I did is, ripped the USB cable I'm using, reversed the D+ and D- pins and no luck then too. Is there any fault with my CP2104 schematic?

kowshik1729
 
Posts: 2
Joined: Wed Jun 27, 2018 1:20 pm

Please be positive and constructive with your questions and comments.