Direct usb to uart converter programing port on custom Arduino board

Projects General Guidance
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hi have designed a custom

25c7e736cdfc4d4cae5a5c3e795327c5 (2)
25c7e736cdfc4d4cae5a5c3e795327c5 (2)4084×4096 1.24 MB

Arduino board wit usb programing port using CP2102N and printed the pcb board now atmgea is working fine with the oter programing board on board programmer is not working

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Schematic_issue sloved experencese shower_2023-03-13
Schematic_issue sloved experencese shower_2023-03-132505×1802 436 KB

this is the schematic diagram

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https://www.instructables.com/USB-TO-UART-CONVERTER-the-CP2102/ reference file which i followed .as i am new to atmega and usb to uart converter is guide me this i cant find the issue in pc com port is geting visbile but cant commplete the downloading's

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image
image1952×991 35.6 KB

reference images

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Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Arduino Mega or Mega 2560, ATmega2560 (Mega 2560)"

Sketch uses 6576 bytes (2%) of program storage space. Maximum is 253952 bytes.

Global variables use 990 bytes (12%) of dynamic memory, leaving 7202 bytes for local variables. Maximum is 8192 bytes.

avrdude: stk500v2_ReceiveMessage(): timeout

avrdude: stk500v2_ReceiveMessage(): timeout

avrdude: stk500v2_ReceiveMessage(): timeout

avrdude: stk500v2_ReceiveMessage(): timeout

avrdude: stk500v2_ReceiveMessage(): timeout

avrdude: stk500v2_ReceiveMessage(): timeout

avrdude: stk500v2_getsync(): timeout communicating with programmer

An error occurred while uploading the sketch

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

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this the error code which i received

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any one pls help me on this topic

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Does the ATMega2560-16AU have a bootloader installed?

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do I see that you have the USB converter connected to RX1/TX1 ?
The normal ATmega2560 bootloader only listens on RX0/TX0...
If you're using MegaCore, there's an option to use the bootloader on UART1, but you have to select that before you do the "burn bootloader."

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do you have any reference link for that

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no i am using tx0 rx0 only

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i have jumper connector in-between just to sperate the incase if the converter is not working

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