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Can't load firmware for UC5550


#1

Hi,

Today, I have upgraded the WIFI firmware on my UC5550 Dev Board
Upgrade was successful but I reload my firmware

If I press Sys A - Reset : board appears as STMDevice in DFU mode
If I press Sys B - Reset it appears as COM and I can Erase - Reload the bootloader (2.04)
After board reset, the UC5550 never appears in the Debug TAB of the TinyCLR Config. I have a COM3 and get a communication failure

I could finally after severto reload the firmware using Tera Term. The Tera Term


#2

So Firmware is finally uploaded using Tera Term. But still unable to connect with the board with the TinyCLR Config or Visual studio (Please check your hardware) . Any hints on that ?


#3

What do you see in device manager?


#4

image
Aimage
And Nothing if I press reset


#5


#6

Doesn’t look like you have the firmware loaded. Go to the loader tab on the config tool and click update to latest.


#7

It is loaded but it doesn’t appear in the Debug and VS

image


#8

That is the loader not the firmware. Click the update to latest button.


#9

This is what I have done !!
image
image


#10

Found that the latest bootloader version for the UC5550 on the download section is 2.0.5. The update using the ‘Update to Latest’ is 2.0.4.
I did a manual Update and got the v2.0.5 installed.
From there, the UC5550_UC5550 appeared in the Debug Tab and I could update the firmware.

image

image


#11

Solved :slight_smile: working again


#12

and thanks for your help Gus!


#13

Always happy to help