BreathUp half-week 15 !

God kveld !

During the beginning of the week I was supposed to work on the filtering integration with sd card and with the qualifying part on our board.

But on monday, I realized that I wasn’t able to write correctly on the card. Having some issues with buffers, eventually, it was a problem of variable allocation that was on the stack and not on the heap. I’m still a little bit confused about the reason which isn’t really clear ! But it’s working, so I cleaned a lot my sd code and made the interface with the filtering part. I tested it but I faced new problems, indeed, I succeeded in writing the first 5800 filtering results but after that it seemed it bugged, yet, I didn’t catch any error and when I stopped the running session, the processors was in the idle thread like if there wasn’t any problems…

So I’m still working on it !

Stay tuned!


benjamin for BreathUp 😉

BreathUp week 14 !

Moro !

This week, I keep working on the SD card and the file system (FatFS) and it ran quite well on the stm32E407 so on Friday, I decided to switch on our own board.
Unfortunately after integrated my code, I had the same problem with the SD card as on the STM32P407 board, that is to say, I wasn’t able to communicate with the card… Eventually, after comparing our board and E407 board, I find that our schematic wasn’t the same concerning the SD card. That is to say, on the E407, there are some hardware pull up on the SDIO ports that we didn’t have on our board, so I had to activate the interne pull up and after that it all worked fine !

So now, I’m integrating all our stuff on the filtering chain: that is to say the filtering and the qualifying parts ! I made some progress but I still didn’t test it yet. So this is what I must do until the end of the half-week.

Stay tuned !



BreathUp half-week 14!

Magandang gabi!

Eventually, I found how to implement the SDC driver ! In reality, I didn’t find where was the problem with my stm32fP407 board, but with quite the same code on the stm32E407, it worked.. I succeeded in writing on the card, reading and I compared what I wrote and what I read ! If I have some more time after the project, I will try to figure out what’s the problem with the stm32P407.
Now, up to the end of the week, I will implement the folder management (FatFS) !

Stay tuned !

Benjamin for BreathUp !