Problem uploading code to stm32 using ch340 module. Please help!!

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sadmansajid2002
Posts: 1
Joined: Mon Jul 18, 2022 5:55 am

Problem uploading code to stm32 using ch340 module. Please help!!

Post by sadmansajid2002 »

SOLVED
Solution:
Apparently there were 1k ohm resistors connected in series between the Rx and Tx of the CH340 IC & the Tx and Rx pins of the module. I checked some schematics and most of the designs of CH340 module didn't have any resistors in that path. So I removed them and shored the pads. Now the driver is working perfectly fine with my stm32.
However, the same driver worked totally normally with my Arduino Pro Mini.
Problem:
I recently bought a stm32f103c6t6a. And I have a ch340 USB to serial converter. But could not upload anything to the board using the Arduino ide. I have followed all the instruction posted in instructables, arduino's website and rogerclarkmelbourne's guide but still won't work.

The ide shows this message:

Code: Select all

Sketch uses 12604 bytes (38%) of program storage space. Maximum is 32768 bytes.

Global variables use 2496 bytes (24%) of dynamic memory, leaving 7744 bytes for local variables. Maximum is 10240 bytes.

stm32flash 0.4

Failed to init device.

http://stm32flash.googlecode.com/

Using Parser : Raw BINARY

Interface serial_w32: 115200 8E1
Please help me fix it.
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