Hello,

We are working on a school project with a mBed microcontroller. We are making a wireless temperature sensor for the pc. Unfortunately, after a couple of software versions (no major differences between them), the mBed has stopped working (I didn’t change anything to the hardware, which is working well). One of the four LED’s keeps flickering. Except for the flickering LED, nothing happens. I have already tried to load the firmware again, but that doesn’t help. Even the “Hello World” program doesn’t work anymore (writing to the mBed disk works fine, the file appears on the disk). I’ve formatted the mBed USB-drive, but that didn’t help either.

When I push the reset button, the status Led goes off. After releasing the button, the status Led goes on, without a brief flash.

I took a look at that internet page. If I connect the mBed to a pc, I can download a program into the mBed as usual. It appears on the mBed disk drive. When I push the reset button, the Status LED goes off, but i never see a brief flash on releasing the button. LED1 keeps flashing.

Does anyone know how I can fix this problem?

Thanks in advance.

I did indeed try those things on that site, but it didn't help. According to what I've read, it seems the mBed does store the .bin-file, but it doesn't load it on start-up.

The problem seems to be solved! I've loaded the experimental powerdown firmware again. Then I copied my program to the mBed again and it's working! I find it a bit strange because I did try that before, without succes. But I am very pleased with the working mBed, that's the most important.