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WhenI connected the USB to the computer, the screen displayed CONFIG.
Nowwe don’t need to sheath the body because we don’t need the heating. And therewill be no warning. New hardware pops up in the computer. It is a USB flashdisk, shown as [removable disk (K ]inside which there is only one file-CONFIG.TXT
Thefile CONFIG.TXT houses the configuration information for the soldering iron.
7KBis the smallest capacity I have ever seen in a USB flask disk. The circuitboard does not visibly include a storage chip. But the configuration is setready for the use of the soldering iron. These lines indeed only cover a fewbytes.
Ireset the configuration: The time lag needed before the sleeping mode ischanged to 90s, for I think the original span is lengthy. The temperature underthe sleeping mode is set to 150 degrees and the work temperature is set to 295degrees. The step length for the regulation of temperature is set to 1.
Save the change, and the configuration parameters become new. The step is simple and easy. The new figures display distinctly. This way of setting opens much room for the expansion of function.
When the temperature regulation step length is set to 1, the temperature becomes automatically changeable. The longer I press the button, the wider the step length grows. What do you say if I name this move for interaction between man and machine “Accelerate the Regulation” ?
The configuration options include the setting of “turn_off_v”. This figure determines the minimum limit of voltage for power supply. If the voltage value is lower than the limit, the soldering iron will stop working. This setting serves to prevent the lithium battery pack from over discharge. What a thoughtful design!
After I unplugged the USB, out of curiosity, I pressed and held the front button and inserted the USB cable. I found the screen of the soldering iron showed something new. It displayed DFU 3.42. I assumed the iron entered the upgrade mode.
Inthe meantime, the desktop reports new hardware is discovered. It is also a USBflash disk, which is supposed to be responsible for upgrading firmware. Thevolume label of the USB disk looks like a serial number.
ThisUSB disk is relatively large. As is reported, it has a capacity of about 2MB.The circuit board does not visibly include a storage chip. For firmwareupgrade, the capacity is more than enough.
It is amazing that a USB with such a small capacity serves to store data for the soldering iron. I’m really impressed by the designer’s competence on handling this STM32 singlechip microcomputer.
The upgrade part is easy and takes only seconds to process. All you need is to pull the firmware into the catalog of this file. When the upgrade is done, there will appear a file extended by “.rdy”.
Connectingthe mini soldering iron with a smart phone for configuration setting is alsoavailable. You just need an OTG-Micro data wire for the connection. And then youcould access the files of the soldering iron on your cellphone.
Editingthe content of CONFIG.TXT is available.
Self-madeLOGOIN.BMP is the file for start-up screen LOGO.
Now we could work with s smart phone instead of a computer.
I managed to access the USB disk on DFU with a cellphone, but I failed to finish the upgrade part. Guess we will need to dig deeper.
Mini soldering iron also features LOGO customization. Under the CONFIG mode, save into the USB disk the customized single-color image entitled “LOGOIN.BMP”, and the screen will display the LOGO when you power the DC port. See what it shows at the moment of powering.
Thecurrent LOGO is my ID. Now this soldering iron is unique. Go have a try, myfriend.
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发表于 2015-9-16 10:08:14
发表于 2017-2-26 12:47:56