Search found 46 matches

by palmerr
Sun Apr 23, 2017 11:51 pm
Forum: STM32F4 Boards
Topic: tiny stm32 F4 boards
Replies: 40
Views: 702

Re: tiny stm32 F4 boards

Ollie, I have Teensys in a number of projects and they are very sweet, especially the 3.5/3.6 models which have enough grunt to do real time audio processing and a range of other fun things. As you say, Paul's software support for Teensy is exceptional, and I'd guess that the cost of the boards incl...
by palmerr
Tue Apr 18, 2017 5:06 am
Forum: STM32F4 Boards
Topic: tiny stm32 F4 boards
Replies: 40
Views: 702

Re: tiny stm32 F4 boards

Thinking about this again today, I realised that we're never going to find a "Blue Pill" F4 - simply because the chip footprint won't fit! The biggest chip that will fit on a Blue Pill is a LQFP-48. I was wrong! Taking another look at the STM32 F4 product line today there are plenty of 32 ...
by palmerr
Sun Apr 16, 2017 1:44 pm
Forum: General discussion
Topic: Analog Pin Numbering
Replies: 28
Views: 578

Re: Analog Pin Numbering

David, You have certainly captured the early Arduino dream, which still lives on in the Uno and close derivatives. And they're great for getting into embedded computing. ST and some others have made Uno "compatible" boards for different CPUs, which has helped to strengthen the Arduino bran...
by palmerr
Sun Apr 16, 2017 1:03 pm
Forum: General discussion
Topic: Analog Pin Numbering
Replies: 28
Views: 578

Re: Analog Pin Numbering

Ag123, All true, and a useful summary of the duscussion. There's a concensus brewing that the Dx or Ax Arduino-style numbering is probably worth putting aside for these more advanced boards, as the folks who are programming them don't need to be insulated from the actual ports/pins. In fact it's jus...
by palmerr
Sun Apr 16, 2017 8:34 am
Forum: STM Core
Topic: First release of STM32F4 core
Replies: 52
Views: 1226

Re: First release of STM32F4 core

Oops!

I left out PB4 from the pinouts and code for the Black F4VET6 board.

It's only connected to the NRF socket and the Winbond Flash, so I picked it up when creating the pinout diagrams for the JTAG, TFT and NRF sockets.

Fixed in the wiki and my repo.

Richard
by palmerr
Sat Apr 15, 2017 5:43 am
Forum: STM Core
Topic: First release of STM32F4 core
Replies: 52
Views: 1226

Re: First release of STM32F4 core

Pin Maps for the Black F4 VET6 board are now up on the wiki and my repo https://github.com/palmerr23/Black-F407VET6-cube/tree/master/Documents

Corrections gratefully accepted.

Richard
by palmerr
Sat Apr 15, 2017 5:43 am
Forum: General discussion
Topic: Analog Pin Numbering
Replies: 28
Views: 578

Re: Analog Pin Numbering

Pin Maps for the Black F4 VET6 board are now up on the wiki and my repo https://github.com/palmerr23/Black-F407VET6-cube/tree/master/Documents

Corrections gratefully accepted.

Richard
by palmerr
Sat Apr 15, 2017 1:17 am
Forum: STM32F4 Boards
Topic: Black F407VET6 - startup
Replies: 37
Views: 518

Re: Black F407VET6 - startup

Steve,

That matches with my reading of the correct pinouts.

I'll have to trust your judgement on the SPI-SDIO allocations as it's outside my experience!

I'm working on a pinout diagram today as requested in earlier the thread.

Richard
by palmerr
Fri Apr 14, 2017 8:58 am
Forum: STM32F4 Boards
Topic: Black F407VET6 - startup
Replies: 37
Views: 518

Re: Black F407VET6 - startup

Hi all, I've been doing some work to see if we can harmonize the Black F4VET6 boards across all the code streams. We've got the new STM32duino F4 branch happening, DanielEff has his GenericSTM32 code, and Avik's Koduino is going strong. I've just updated my repo with a bunch of updated info for the ...
by palmerr
Fri Apr 14, 2017 8:30 am
Forum: STM Core
Topic: First release of STM32F4 core
Replies: 52
Views: 1226

Re: First release of STM32F4 core

Thanks Frederic,

I'll download the changes tomorrow and have a play.

BTW: are the floating point functions implemented yet, I'm getting slowish arithmetic?

Single precision float = 8 x fixed point, for add and multiply.

It should be closer to 1:1 for FPU?

Richard

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