Arduino for STM32

The -mcpu=cortex-m4 -march=armv7e-m+fp Doesn't cut it w. the ST Core & PITO's program. I just did some "Stuff" in the ST Core .... with -mcpu=cortex-m4 -march=armv7e-m+fp -O2 ########################################## Single Precision C Whetstone Benchmark Calibrate 0.10 Seconds 1 Pass...

@ag123

Use my ST-Core BP-F411 fix from here
viewtopic.php?p=936#p936

Zip file
download/file.php?id=86


It's just a copy boards.txt , and an add F411XX directory to variants.

/Bingo

@fpiSTM Will you please pick that "ZIP file up" , I'm not advanced enough in git , to do merge requests etc ... Sorry /Bingo Currently, I have no time to do this, sorry. I already have several PR to review and test. Several around F4xx generic variant and so the Black should relies on it,...

Ahh ... I just did do it for the BP F411CE - Attached in previous post STM32F411CE Blackpill @96MHz , ART Enabled. fpiSTM Will you please pick that "ZIP file up" , I'm not advanced enough in git , to do merge requests etc ... Sorry Zip file w. F411CE implementation (Closely based on the ex...

@Bingo600 The blackpill F411 is ongoing by the community. What does that mean ?? That the ST core won't support it ? I just got it to work F411CE.png ########################################## Single Precision C Whetstone Benchmark Calibrate 0.15 Seconds 1 Passes (x 100) 0.77 Seconds 5 Passes (x 10...

See further down

Naah ...

The F411@84MHz - No ART is here
viewtopic.php?p=899#p899

The 100 MWIP was with the old whetstone (ag123) (unreliable)
viewtopic.php?p=885#p885

Pito wrote: ↑Sun Jan 26, 2020 12:33 pm So with the ART enabled you got lower numbers??
There is an issue somewhere..

It looks like the ART function is reversed

I goofed (erased the -O3 nubers) ... You read the -O2 numbers , read again
Will do -Os now
-Os done

To me it seems like "Really old F4, pre revZ" doesn't have ART

ST Core - F411@96MHz , ART enabled , -O3 ########################################## Single Precision C Whetstone Benchmark Calibrate 0.15 Seconds 1 Passes (x 100) 0.75 Seconds 5 Passes (x 100) 3.76 Seconds 25 Passes (x 100) Use 66 passes (x 100) Single Precision C/C++ Whetstone Benchmark Loop conten...