Search found 23 matches

by sheepdoll
Fri Jun 05, 2020 4:52 pm
Forum: General discussion
Topic: Mac OS X 10.15.2 catalina, cube MX and sw4stm32
Replies: 2
Views: 502

Re: Mac OS X 10.15.2 catalina, cube MX and sw4stm32

This is a pretty old thread. I installed the Stm32CubeIDE recently and it works much better. I never did figure out why I can not open .ioc projects in MX apart from the most recent one. Opening the same .ioc project in cubeIDE it loads direct. Same for generating the .ld file under CubeMX. I no lon...
by sheepdoll
Thu Jun 04, 2020 2:17 am
Forum: STM boards (Discovery, Eval, Nucleo, ...)
Topic: UDP Communication and an addtional SPI connection, STM32duino
Replies: 2
Views: 611

Re: UDP Communication and an addtional SPI connection, STM32duino

Yes, If you want to use ETH, you have to move some straps on the Nucleo. These are called out in the app note for the Nucleo board. There may have been some discussion on Stack exchange which pointed to this. For some reason ST did not mount the 8Mhz crystal on the 144 pin STM32F429 Nucleo either. T...
by sheepdoll
Thu Jun 04, 2020 1:50 am
Forum: Off topic
Topic: Little-known Japanese CPU threatens to make Nvidia, Intel and AMD obsolete in HPC market
Replies: 4
Views: 127

Re: Little-known Japanese CPU threatens to make Nvidia, Intel and AMD obsolete in HPC market

Top link to techradar is paywalled. Well it complains about the ad blocker and wants you to pay for subscription. Guess I am to old. I remember when information wants to be free. Now the new aggregators are charging for other peoples data ... I have no intention of white listing the site. Most of th...
by sheepdoll
Fri May 22, 2020 5:48 am
Forum: IDE's
Topic: watch memory allocation c++ libraries SW4STM32
Replies: 8
Views: 477

Re: watch memory allocation c++ libraries SW4STM32

I got it working. _sbrk was indeed the key. Put a breakpoint there and it was exactly what I wanted. I could see the end of heap pointer. To use placement new, one also has to '#include <new>" which is a bit of a strange syntax. I guess <new> maps to new.h That said it was not a clean solution. If t...
by sheepdoll
Wed May 20, 2020 9:47 pm
Forum: IDE's
Topic: watch memory allocation c++ libraries SW4STM32
Replies: 8
Views: 477

Re: watch memory allocation c++ libraries SW4STM32

So putting a simple array into CCMRAM works Putting the stack into CCMRAM fails at the first call to new. It seems from the mangled disassembly of the new() implementation malloc is returning an exception. Not sure where SW4STM32 keeps it's library source for things like malloc. Next up will be to t...
by sheepdoll
Wed May 20, 2020 4:41 am
Forum: Let us know a bit about you and your projects
Topic: Hello all from Essonne
Replies: 2
Views: 213

Re: Hello all from Essonne

Welcome to the forums; I have been working with pipe organ controllers for many years (Decades?) There are a number of virtual organ systems out there. I work with theater organs which are VTPO. I also understand there are Virtual Hammond organs (VHOs) and a lot of VPOs which are virtual pipe organs...
by sheepdoll
Tue May 19, 2020 1:34 am
Forum: IDE's
Topic: watch memory allocation c++ libraries SW4STM32
Replies: 8
Views: 477

Re: watch memory allocation c++ libraries SW4STM32

Yeah that is what I am experimenting with. I found a reference to a 'post link' option called --format=sysv which gives a more verbose map of the memory usage. found an interesting description on the OpenSTM32 web page. https://www.openstm32.org/Using%2BCCM%2BMemory I think when combined with this p...
by sheepdoll
Mon May 18, 2020 7:50 pm
Forum: IDE's
Topic: watch memory allocation c++ libraries SW4STM32
Replies: 8
Views: 477

watch memory allocation c++ libraries SW4STM32

So last week I got my assembled STM32F407 pipe organ interface boards. After cutting a few traces and adding half a dozen blue wires they work. I had been performing some of my initial testing with an STM429 Nucleo. I went with the F407 for the 100 pin lqfp. The old board used an 83848 PHY Which i h...
by sheepdoll
Mon May 04, 2020 4:48 am
Forum: IDE's
Topic: STM32CubeIDE -- using libs from arduino
Replies: 3
Views: 674

Re: STM32CubeIDE -- using libs from arduino

I have not installed STM32CubeIDE yet. Looks like it is eclipse based. I have used SW4STM32 for some time now which is also eclipse based. Eclipse has an item in the project menu, which is to convert project to C++. The way I work is to use CubeMX to define the project. Then I generate a SW4STM32 pr...
by sheepdoll
Wed Mar 11, 2020 8:31 pm
Forum: General discussion
Topic: Can you program the STM32F429 using the Arduino language/software?
Replies: 7
Views: 333

Re: Can you program the STM32F429 using the Arduino language/software?

i think the stm32f429 discovery board is a rather popular board, i'd suggest making a variant for it. the main thing about this board is that it has an lcd on board i think i read somewhere it is an ili9341 but i'm not too sure the other thing about this board is the 8 MB sdram on board i think it ...

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