ESP32-S3 not working with the CP2104

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0miker0
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Joined: Fri Dec 01, 2017 1:14 pm

ESP32-S3 not working with the CP2104

Postby 0miker0 » Tue May 02, 2023 11:37 am

My ESP32-S3 will not upload and Arduino sketch using the CP2104. I double checked the Rx Tx lines from the S3 to the CP2104 and have a 10K pull-up on IO0 but none on IO45 that I believe is correct. Attached is the schematic and upload errors. If anyone has any idea, it would really help. I find it odd that the chip appears to be detected but the sketch will not upload.
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settings.png
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Schematic_Rev1.pdf
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error.png
error.png (188.55 KiB) Viewed 1660 times
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ESP_Sprite
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Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32-S3 not working with the CP2104

Postby ESP_Sprite » Wed May 03, 2023 1:24 am

Your upload speed is close to 1MBaud. I'd start out by setting that to something lower first, see if that works.
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0miker0
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Joined: Fri Dec 01, 2017 1:14 pm

Re: ESP32-S3 not working with the CP2104

Postby 0miker0 » Wed May 03, 2023 12:09 pm

The slowest upload speed has not fixed the issue.
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