Search found 82 matches

by Bingo600
Wed Apr 08, 2020 7:24 pm
Forum: Custom design boards
Topic: Bluepill F4 board, anyone still working on it?
Replies: 83
Views: 18653

Re: Bluepill F4 board, anyone still working on it?

Thanx ... Looks nice

Any timeframe for a "final" version

/Bingo
by Bingo600
Sun Mar 22, 2020 8:39 pm
Forum: General discussion
Topic: USB connection to STM32VLDISCOVERY
Replies: 2
Views: 626

Re: USB connection to STM32VLDISCOVERY

Does the VLDISCO (F100) support USB at all ?

The USB plug on the board is for the onboard ST-Link-V1 debugger

/Bingo
by Bingo600
Wed Mar 04, 2020 7:37 pm
Forum: General discussion
Topic: STM32F103C8T6: Confirmation of counterfeiting by ST
Replies: 14
Views: 4422

Re: STM32F103C8T6: Confirmation of counterfeiting by ST

robca wrote:
Sat Feb 29, 2020 11:08 pm
Paypal offers "free return shipping" if you enable it for free on your account,
Any quick hint , how to enable the free return on a PP account ?

/Bingo
by Bingo600
Tue Jan 28, 2020 3:20 pm
Forum: General discussion
Topic: Regarding Impementation of CAN on STM32 discovery
Replies: 8
Views: 1654

Re: Regarding Impementation of CAN on STM32 discovery

i am using two stm32f407 and two mcp2515 and ide using is arduino and iwant to send one stm32f407 data another stm32 using can bus so help me out thank you!!! Afaik MCP2515 is a SPI driven Canbus controller. Doesn't the F407 have a built in canbus interface available ?? I'm quite sure there are Ard...
by Bingo600
Sun Jan 26, 2020 8:37 pm
Forum: General discussion
Topic: dhrystone and whetstone benchmarks
Replies: 85
Views: 13777

Re: dhrystone and whetstone benchmarks

Well this day went totally cortex + FPU :) But at lest i got BLACKPILL_F411CE implemented in the ST Core @96MHz + ART Enabled BPF411CE.png I ran my first program on my "Ali Black-F407" I got my DISCO-F407 dusted off And i learned a lot about the boards.txt & variants directories I'm off ... ZZZzzzzz...
by Bingo600
Sun Jan 26, 2020 7:50 pm
Forum: General discussion
Topic: dhrystone and whetstone benchmarks
Replies: 85
Views: 13777

Re: dhrystone and whetstone benchmarks

What does this flag do ?? ST Core does not specify : -fsingle-precision-constant GenF4.build.flags.fp=-mfpu=fpv4-sp-d16 -mfloat-abi=hard F411 Built as cortex-m7 No -fsingle-precision-constant -O2 Fast N1 , slow N5 , slow MWIPS ########################################## Single Precision C Whetstone B...
by Bingo600
Sun Jan 26, 2020 7:49 pm
Forum: General discussion
Topic: dhrystone and whetstone benchmarks
Replies: 85
Views: 13777

Re: dhrystone and whetstone benchmarks

Mispost
by Bingo600
Sun Jan 26, 2020 7:28 pm
Forum: General discussion
Topic: dhrystone and whetstone benchmarks
Replies: 85
Views: 13777

Re: dhrystone and whetstone benchmarks

fpiSTM wrote:
Sun Jan 26, 2020 7:14 pm
This is provided by ARM:
https://github.com/ARM-software/CMSIS_5 ... SP/Lib/GCC
Damm ...
".a" files ==> Compiled libraries

No source ..

Well i'd prob not understand the "magic" anyway

/Bingo
by Bingo600
Sun Jan 26, 2020 7:08 pm
Forum: General discussion
Topic: dhrystone and whetstone benchmarks
Replies: 85
Views: 13777

Re: dhrystone and whetstone benchmarks

I had to .... Built F411 but as a cortex-m7 boards.txt :oops: GenF4.name=Generic STM32F4 series GenF4.build.vid=0x0483 GenF4.build.core=arduino GenF4.build.board=GenF4 GenF4.build.extra_flags=-D{build.product_line} {build.enable_usb} {build.xSerial} {build.bootloader_flags} #GenF4.build.mcu=cortex-m...
by Bingo600
Sun Jan 26, 2020 6:35 pm
Forum: General discussion
Topic: dhrystone and whetstone benchmarks
Replies: 85
Views: 13777

Re: dhrystone and whetstone benchmarks

fpiSTM wrote:
Sun Jan 26, 2020 6:32 pm
Maybe the cmsis library helps on this...
You mean this one ??
GenF4.build.cmsis_lib_gcc=arm_cortexM4lf_math

Seems like the F7 uses this one cmsis_lib_gcc=arm_cortexM7lfsp_math
Is the source available for those math libs ??

/Bingo

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