Hi
EDIT.
I just realised that all Maples are not created equal.
I have a Maple which has a F103RBT on it, not the RET version required for DAC
So please ignore this posting.
DAC output on Maple (solved)
(4 posts) (2 voices)-
Posted 10 months ago #
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gbulmer
Moderator@rogerclark - "So please ignore this posting."
So do you want to delete this thread, or leave the original question or comment so that it makes a bit more sense?Also, for folks who make their own Maples using the Open Hardware community designs there are options to use STM32F3 and STM32F4 also which have DACs.
Finally, IIRC, several of the MBED compatible ST Nucleo's have DACs.
Posted 10 months ago # -
@gbulmer
Sorry for the confusion.
I have a "Maple" board which I bought from iTeadStudio, and I assumed that it would have DAC, however when it didnt work, I did a bit more research and realised that only the Maple RET 6 version has DAC.
But co-incidentally I also have a generic STM32F103RCT board, and this version of the F103 chip does have the DAC hardware, so I have been able to use libmaple with it
I'm not sure why iTeadStudio didn't make the latest version of the Maple, but instead chose to do a version of the F103RB based board - perhaps cost of the micro-controller, or perhaps they started their development before the RET6 was released
But the iTeadStudio maple is not a direct clone of the LeafLabs maple, it has different USB reset hardware, and also different 3.3V VCC / regulation supply electronicsPosted 10 months ago # -
gbulmer
ModeratorI had a look at the itead schematic. I see what you mean about the USB reset.
I recognise the structure; maybe siy did it, and I remember doing a schematic, but can't remember ever building it.
However the component values look different from my recollection, so maybe it is original, or from some other board.
Yes, the power supply looks different.I haven't checked the Olimex board. That is pretty neat.
Posted 10 months ago #
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