STM32F407 Discovery Compiling Issues

OK I’ve uploaded your code and it shows the same error “No Target Connected” after uploading the complete code.

Touseef wrote:<…>
shows the same error “No Target Connected” after uploading the complete code.

You should not bother about the “No target connected”, I think it is simply that it doesn’t seems to be able to execute “reset”.
Simply power-cycle your board to see it blinking.

Thanks, Martin!
I do not have an F4 Discovery Board … but with as many questions as we get about these darn things, I should probably buy one just to punish myself

Ray

Hi Ray, the “reset” issue is not only F4 related …
For your punishment, you should purchase board like viewtopic.php?f=39&p=14454#p14450
With such punishments, it becomes a pleasure to be punished …

mrburnette wrote:Touseef wrote:<…>
shows the same error “No Target Connected” after uploading the complete code.

For a start, dont use pin numbers, use the official STM names for the pins, which you already quoted in your post.

martinayotte wrote:Hi Ray, the “reset” issue is not only F4 related …
For your punishment, you should purchase board like viewtopic.php?f=39&p=14454#p14450
With such punishments, it becomes a pleasure to be punished …

mrburnette wrote:
the board is probably shipped in a black leather carry-pouch and a miniature whip.
’tis would give a new meaning to chip torture.

martinayotte wrote:
And the chip can answer “meoww !”

Hi Ray !
Don’t get me wrong here … It is not me that going to shout “meow !” …
Here, in Quebec, there is currently a commercial on TV, from charity Org, that wish people to donate unused wearing.
We can see this big fat man wearing a leather clothe, we don’t see his women around using the “miniature whip”, but the man is screaming “meow !” …
He concluded that he doesn’t need this wearing anymore …
In fact, the comedian doing this is a well known artist, he support the campaign for donation ! :ugeek:
I’m always laft when I see that commercial …

martinayotte wrote:
<…>
I’m always laft when I see that commercial …

Never mind all that French nonsense… http://www.glengoyne.com/

ahull wrote:Never mind all that French nonsense… http://www.glengoyne.com/

It looks to me like that STK link thingy isn’t even coming up as a serial port, rather a proprietary USB connection that only links to the ST IDE. Perhaps an interface soft like Serial Emulator would be able to deal with it. I myself can’t try that as I haven’t a discovery board (yet)

Also, a question I’ll pose here:
I have chosen the STM32F407 chip because (mostly) it has SDIO implemented. It’s too bad the ‘duino development isn’t up to snuff yet, so does anyone know of a lesser, more supported STM32F chip that still has SDIO?
I know the 103 fall short on that bus, unless I’m missing part of the datasheet

Cheers!!

Some F103 versions have SDIO, but it is only available on the F103RC or better e.g F103RE, F103Vxx and F103Zxx

unfortunately we do not have any code for libmaple that supports it.

But…

There are 2 possibilities to remedy this shortcomming.

Arduino.cc are working on SDIO code for the STAR OTTO and it will be published to github, we can then take this code and port it into the HAL MX core.
(@vassilis has already, kindly, ported the STAR OTTO I2C (Wire) library to the HAL MX core)

Alternatively, I made an experimental HAL library for the libmaple F103 code, so it may be possible to use STMs example SDIO code ( which uses the HAL) by making use of the HAL library.

But, the bottom line is at the moment, we do not have support for SDIO

Thanks so much for taking the time to reply Roger!
You have saved me a lot of research time for sure. I won’t be developing until end of summer so fingers crossed.

I need a solution to transfer parallel 16 bit data (16MB) to an SD Card in a timely (not minutes) fashion under FATfs and looks like SPI is just too variable for it.

Cheers!

_BTW excellent work Roger!!

No worries

In that timeframe, I suspect the HAL MX core may be your best bet, as hopefully by then Arduino.org will have written the code for the OTTO which we can port.

Francesco @ Arduino.org is in fairly regular contact, via email, so I should know as soon as they have SD working.

BTW.
I think we have DMA transfer to SD card via SPI, but I can’t recall whether its working or not at the moment. i.e I thought at one point it was working, but we sometimes have setbacks and things stop working due changes in dependencies (other libs).

Could I ask what kind of data which takes such huge space ?

Oh I hope so!

It’s audio data 16bit, 48Ks/s in stereo. Effectively to dump the RAM directly from the bus