Sir, I have assembled the main board. can I use 10K and 5.6K Resistors instead of 22K and 12K ?and another issue is I don't have a usb female plug type you mentioned in the circuit, I Can use the flat socket, please help me to identify the pin d+ and d-, thank you.
The ratio of 5.6K/10K is slightly different than 12K/22K so you will have a small error on the value of VPP. This should be acceptable.
D+ and D- go to pins 16 and 15.
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Sir, I have assembled the main board. can I use 10K and 5.6K Resistors instead of 22K and 12K ?and another issue is I don't have a usb female plug type you mentioned in the circuit, I Can use the flat socket, please help me to identify the pin d+ and d-, thank you.
Here is my pcb
Last edit: Mohammed 2014-10-12
The ratio of 5.6K/10K is slightly different than 12K/22K so you will have a small error on the value of VPP. This should be acceptable.
D+ and D- go to pins 16 and 15.