Search found 384 matches

by ag123
Fri Jun 05, 2020 9:25 pm
Forum: Off topic
Topic: IRF7103 and 3.3V control with STM32
Replies: 5
Views: 44

Re: IRF7103 and 3.3V control with STM32

yup the AO3400 and AO3401 http://www.aosmd.com/pdfs/datasheet/ao3400.pdf http://www.aosmd.com/pdfs/datasheet/ao3401.pdf are very attractive searches like this returns lots of entries https://www.aliexpress.com/wholesale?catId=0&SearchText=ao3400 https://www.aliexpress.com/wholesale?catId=0&SearchTex...
by ag123
Fri Jun 05, 2020 7:13 pm
Forum: STLink
Topic: USB Status [unknown] find: ‘/dev/vboxusb’: Permission denied
Replies: 1
Views: 19

Re: USB Status [unknown] find: ‘/dev/vboxusb’: Permission denied

that message can probably be ignored, if you are running libmaple core go into Arduino_STM32/tools/linux/stlink try out things like st-info --descr etc, it should be able to detect your st-link dongle and that dongle should show up in lsusb preferably get updated version of the st-link utilities htt...
by ag123
Fri Jun 05, 2020 4:15 pm
Forum: Projects
Topic: Girino ported to STM32duino (libmaple core) stm32f103 maple mini
Replies: 0
Views: 25

Girino ported to STM32duino (libmaple core) stm32f103 maple mini

this is an *old* post resurrected from web archive, just in case someone is interested in it. there is no assurance that it would work .. really, but back then it works ;) ------------ Girino ported to STM32duino (libmaple core) stm32f103 maple mini updated, this is now a 'just works' release https:...
by ag123
Fri Jun 05, 2020 3:59 pm
Forum: Let us know a bit about you and your projects
Topic: Hello_World!
Replies: 5
Views: 634

Re: Hello_World!

i've got a usb one here
https://github.com/ag88/GirinoSTM32F103duino
libmaple based. i think it'd make a post for this in projects, it is there in the 'old' forums though.
lost to time
ok reposted it:
viewtopic.php?f=10&p=3140
by ag123
Fri Jun 05, 2020 2:44 am
Forum: Maple & Maple mini etc
Topic: No COM Port - STM32F103RC8T6
Replies: 12
Views: 2161

Re: No COM Port - STM32F103RC8T6

if it is a maple mini clone and that it doesn't blink there are 2 possibilities - the usb-dfu boot loader is missing - the chip on the board is fake if you would like to install the usb bootloader, you would need the st-link v2 or a usb-uart dongle https://www.st.com/en/development-tools/st-link-v2....
by ag123
Thu Jun 04, 2020 7:00 pm
Forum: USB bootloader
Topic: USB port does not appear (linux mint)
Replies: 3
Views: 76

Re: USB port does not appear (linux mint)

to upload the sketch, and assuming that you are using a stm32f401 pill board. the following finger dance applies you need http://dfu-util.sourceforge.net/ next press boot0 and reset. hold boot0 release reset you can release both after another (few) seconds. > dfu-util -l ^ check if you can see the s...
by ag123
Thu Jun 04, 2020 7:41 am
Forum: General discussion
Topic: Sleep modes for STM32F1
Replies: 5
Views: 95

Re: Sleep modes for STM32F1

my thoughts are that using any of the hardware 'sleep' and 'deepsleep' modes one would need to work the design in terms of keeping state between the start of sleep and resume from sleep. that for sure would be more complicated than the simple minded asm("wfi") i tend to find using asm("wfi") runs a ...
by ag123
Thu Jun 04, 2020 6:52 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

hope this one is better https://www.hpcwire.com/2019/11/12/cray-fujitsu-both-bringing-fujitsu-a64fx-based-supercomputers-to-market-in-2020/ https://www.hpcwire.com/2020/02/03/fujitsu-arm64fx-supercomputer-to-be-deployed-at-nagoya-university/ but i think they won't be the only one, and i think more A...
by ag123
Wed Jun 03, 2020 4:15 pm
Forum: General discussion
Topic: STM32F103 Strange Behavior
Replies: 5
Views: 358

Re: STM32F103 Strange Behavior

do take note that having a bootloader may shift the vector tab address. e.g. there are macros like VECT_TAB_OFFSET=0 - STM core i think VECT_TAB_ADDR=0x8002000 - libmaple core (e.g. with boot loader), without it should be 0x8000000 which defines the start address of the vector tab. normally these sh...
by ag123
Wed Jun 03, 2020 3:48 pm
Forum: IDE's
Topic: Qemu STM32
Replies: 6
Views: 142

Re: Qemu STM32

well, what you mentioned makes sense, in a sense, normally i do without an emulator. but situations sometimes gets tight especially that after all stm32f103c8 has 20k sram it'd be great if an emulator can be used to diagnose memory overruns. And occasionally, i find myself lazy to patch together all...

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