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Multitech MDot: Flashing MDot firmware compiled using MBED Online compiler causes CRC Errors #13121

@yogeshk19

Description

@yogeshk19

Description of defect

We are compiling a custom application using the MBED online compiler and we have always been able to flash the firmware without any issues however as of today and we are getting CRC errors as shown below, when flashing the MDot module using tera term and ymodem interface. I am using the MDot library 3.1.0 and mbed-os-5.7.7 to compile my custom firmware. We are blocked on generating production builds and would like to receive some assistance ASAP.

Target(s) affected by this defect ?

MTS_MDOT_F411RE

Toolchain(s) (name and version) displaying this defect ?

GCC ARM

What version of Mbed-os are you using (tag or sha) ?

16bac10

What version(s) of tools are you using. List all that apply (E.g. mbed-cli)

MBED ONLINE COMPILER

How is this defect reproduced ?

Compile any application targeted for the above target using Multitech MDot library 3.1.0 and mbed-os-5.7.7 and once the application is successfully compiled, use the downloaded . bin file to flash the MDot and you should see the follow error mentioned below.

bootloader :> upgrade ymodem
[INFO] Starting upgrade
[INFO] Starting YMODEM file transfer
[INFO] YMODEM file transfer succeeded
[INFO] appended crc: 50050000
[INFO] calculated crc: 2793190355
[ERROR] File validation failed

Thanks,
Yogesh

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