How To Flashing umi emax
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How To Flashing umi emax
this video shows how to flash those turing plush nfet 30a esc's. we can either rip this thing apart and solder wires on it, that's what we see here, there are three wires soldered to the programming pads. or we use a dremel to cut this thing open above the programming pads that's what i tried here, in the first attempt i was not deep enough, you can't go too deep, because you could damage parts inside, step by step you get closer to the pads make all those four pads accessible
when i'm done with it, cleaning the hole, i have access to the four pads let's zoom out and then we see how that looks like later i can put a label on the hole, then it is closed again i am going to use pogo pin adapters pogo pins have a little spring in there and gold contacts. i made this tool myself i can poke them in there and hold them over the contact pads, while i program the chip. here we can see this that's how i program the silabs f330 chip in there i need a developer tool, a silabs toolstick
that comes with an usb extension cord and the toolstickbase itself. it's a usbstick. that's how it looks like, and we have to modify it, we have to open up the package and solder the red and black wire to the pins shown gndand c2ck that's two of the programming lines on the other side we need to solder on another wire, orange in my case, orange wire right there and where it says blob, those two pins have to be shorted out, i put a little solder blob on there this is how the tool looks like now this shows how to attach it during programming
i have my toolstick connected to the usb of the computer you see the little green light is on here are the three wires i soldered to the stick i can either connect to my little pogo pen adapter here or i can solder another cable directly to the esc programming pads for demonstration purpose i use the soldered wire, to have a hand available, while i make this video i plug this in and i also power up the esc with a battery here is my setup now powered up. usbto the stick plugged in here to the programming pads and plugged into the battery
now we are going to take a look into the software there are two ways to flash this when i open the silabs flashtool, then it automatically recognizes the stick, if it is plugged in. i push the connect button, it has to update the stick, then i see the toolstick software versions down here i go to the download folder and the select the hex file i want to flash this is the correct hex file for my esc i can erase all the data from the mcu before i flash the download button download the data to the esc chip (mcu)
it was successful, and it has a checksum, therefore it was good you can verify the download, and it will show you it's ok now you can close the program and the mcu is ready the second method is to use the blheli software since you need this tool anyway, if you need to change the esc settings later you might as well flash with it it already recognizes the toolstick you click connect and then you can read the setup and then you see what software version you have. version 11.1 in this case
and i have already the hex file for 13.2 i click on flashit and i select the version i want latest is 13.2 i want the multicopter version i click ok twice, yes do it! it updates, checksums, flashes everything successful, that's it. i am going to look at my settings and i can see my current setup. i can change the settings for my esc, if i want if i click the little house button on the side of a value, that's the default setting
if i want to write my setup to the chip, i click on write setup. we can also name this esc. for example motor 1 write setup it's always ok, no? if we click read, it reads it out again everything successful, we see how the setting is right now. it is a pretty neat tool, i have to say read write read write, this is all working pretty well. ok version 13.2 is now what i have in there, the latest version at the time i made this video.
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