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STPM32 "Read buffer length insufficient. The operation has timed out."

Question asked by Kavalam.Jobin_Jacob on Mar 23, 2017
Latest reply on Jan 12, 2018 by said ediz

I tried to connect the EVAL-STPM32 board to the STPM3x Evaluation Software but encountered the following error when trying to read data.

 

Error message: "Read buffer length insufficient. The operation has timed out."

 

PC was running Windows 7 STPM3x Evaluation Software v3.1.0.0

 

In the "Options -> Interface" menu, the following values were used:

UART / COM 5 / 9600 (baud rate)

 

The board was connected to the PC through a USB to UART Bridge (Silicon Labs CP210x).

 

J2 connected to the USB-to-UART bridge

J7 connected to an external DC supply of 3.3V

J2 connected to a different 3.3V source

J3 jumper was removed

SWC1 DIP switch was all in on position

J4 jumper was in "enable" position

 

I really appreciate your help.

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