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by ag123
Sun Apr 28, 2024 2:20 pm
Forum: General discussion
Topic: Stumbling at the first connection...
Replies: 5
Views: 423

Re: Stumbling at the first connection...

custom bootloaders are 3rd party developed back in the 'old days' there is leaflabs maple, that is the first popular *duino running on stm32f103, the old forum which hosted this made improvements originally hosted by 'roger' https://github.com/rogerclarkmelbourne/Arduino_STM32 https://github.com/rog...
by ag123
Sat Apr 27, 2024 6:11 pm
Forum: General discussion
Topic: Stumbling at the first connection...
Replies: 5
Views: 423

Re: Stumbling at the first connection...

if you want to program a stm32f103 e.g. those 'blue pill' style boards. get a st-link v2 https://www.adafruit.com/product/2548 https://www.st.com/en/development-tools/st-link-v2.html https://octopart.com/search?q=st-link+v2 for 'blue pill' style boards, i think they put the headers for that at the '...
by ag123
Sat Apr 27, 2024 1:14 pm
Forum: Off topic
Topic: MS DOS
Replies: 0
Views: 90

MS DOS

by ag123
Sat Apr 27, 2024 1:02 pm
Forum: Libraries & Hardware
Topic: Adafruit Nexopixel Library not working...
Replies: 7
Views: 512

Re: Adafruit Nexopixel Library not working...

for neopixels I've been thinking about using Timers and DMA https://www.thevfdcollective.com/blog/stm32-and-sk6812-rgbw-led https://ralimtek.com/posts/2021/ws2812/ think Adafruit's Neopixel lib uses SPI? well nothing 'wrong about it' but that using Timers possibly 'saves' an SPI port and is possibly...
by ag123
Sat Apr 27, 2024 7:43 am
Forum: General discussion
Topic: Stumbling at the first connection...
Replies: 5
Views: 423

Re: Stumbling at the first connection...

usually this indicates a bad usb cable
by ag123
Mon Apr 22, 2024 11:24 am
Forum: General discussion
Topic: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
Replies: 40
Views: 6245

Re: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz

among the things to try, after successfully flashing through st-link, try with DFU again, maybe make some changes so as to tell that that is installed from DFU. it is quite possible the flash could be write protected. But that with st-link, there is a special means connect under reset which can ove...
by ag123
Mon Apr 22, 2024 6:33 am
Forum: General discussion
Topic: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
Replies: 40
Views: 6245

Re: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz

if you can work with fpiSTM to do a commit for a new variant for 8 Mhz (by means of a PR pull request) do help to test that. the files that are needed to be updated are a copy of that variant file with a new name, and maybe some other source files (i'm not sure but you'd need to check), e.g. the inc...
by ag123
Mon Apr 22, 2024 6:26 am
Forum: General discussion
Topic: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
Replies: 40
Views: 6245

Re: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz

among the things to try, after successfully flashing through st-link, try with DFU again, maybe make some changes so as to tell that that is installed from DFU. it is quite possible the flash could be write protected. But that with st-link, there is a special means connect under reset which can over...
by ag123
Sun Apr 21, 2024 3:41 am
Forum: General discussion
Topic: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
Replies: 40
Views: 6245

Re: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz

if the stm32cube programmer messages make sense, it seem your boards are actually working, otherwise cannot even program. but the blink test not working is unusual. I rebuild a blink test with some other test usb, adc, temperature reading, whetstone benchmark etc my board is 25 mhz, I've rebuild thi...
by ag123
Sun Apr 21, 2024 3:27 am
Forum: General discussion
Topic: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
Replies: 40
Views: 6245

Re: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz

if that doesn't work, then it is unlikely to be a clock issue, because by returning in void SystemClock_Config(), before clock setting.
it is running on its internal clock, not even on the crystal

it seem you have a few boards, all of them don't work?

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