Search found 39 matches

by heretop
Mon Feb 05, 2024 6:18 pm
Forum: Custom design boards
Topic: STM35F103VCT6 blink LED issue
Replies: 3
Views: 3083

Re: STM35F103VCT6 blink LED issue

I encountered the same problem when I first tried using an STM32 board. It seems your guess is spot on – erasing the chip probably removed the bootloader, and that's why the LED isn't blinking right. I fixed mine by putting a new bootloader on the board before I tried uploading the Blink program aga...
by heretop
Thu Jun 09, 2022 3:33 pm
Forum: General discussion
Topic: Nucleo F411RE stm32cubeProg not detect USB
Replies: 9
Views: 1917

Re: Nucleo F411RE stm32cubeProg not detect USB

think that'd goto the F411, likely independent of the st-link. But check the docs / schematics etc. for one thing, after you have checked in schematics that it is only going to f411, and you have soldered the crystal you can try to set boot0 on f411, then connect usb to pc. the pc should detect it ...
by heretop
Thu Jun 09, 2022 2:53 pm
Forum: General discussion
Topic: Nucleo F411RE stm32cubeProg not detect USB
Replies: 9
Views: 1917

Re: Nucleo F411RE stm32cubeProg not detect USB

I think Nucleos has a separate st-link chip (probably a stm32f103) on board, it isn't a boot loader, it is a full SWD programmer. As shown in my picture in my initial post, I did not connect to ST-LINK part, I only connect usb to DP and DM of f411re. It will not go through that SWD right. And I als...
by heretop
Thu Jun 09, 2022 2:48 pm
Forum: General discussion
Topic: Nucleo F411RE stm32cubeProg not detect USB
Replies: 9
Views: 1917

Re: Nucleo F411RE stm32cubeProg not detect USB

I'm not sure about the electrical aspects, i.e. 12 mhz, 16 mhz may or may not work. So for that you'd need to check and test it separately. if that works to use a 12 mhz or 16 mhz crystal, the main thing is to setup the SystemClock_Config() in a variant for your board. you can take a look at that i...
by heretop
Thu Jun 09, 2022 2:34 pm
Forum: General discussion
Topic: Nucleo F411RE stm32cubeProg not detect USB
Replies: 9
Views: 1917

Re: Nucleo F411RE stm32cubeProg not detect USB

I'm not sure about the electrical aspects, i.e. 12 mhz, 16 mhz may or may not work. So for that you'd need to check and test it separately. if that works to use a 12 mhz or 16 mhz crystal, the main thing is to setup the SystemClock_Config() in a variant for your board. you can take a look at that i...
by heretop
Thu Jun 09, 2022 2:14 pm
Forum: General discussion
Topic: Nucleo F411RE stm32cubeProg not detect USB
Replies: 9
Views: 1917

Re: Nucleo F411RE stm32cubeProg not detect USB

i think it may need something like this: - solder that 8 mhz crystal - check the manuals set the jumpers so that the Nucleo use the crystal as HSE. - you would need to configure your board as like a custom board you need to make a SystemClock_Config() that runs on the 8 mhz crystal Thanks for reply...
by heretop
Wed Jun 08, 2022 2:18 pm
Forum: General discussion
Topic: Nucleo F411RE stm32cubeProg not detect USB
Replies: 9
Views: 1917

Nucleo F411RE stm32cubeProg not detect USB

Hi, I try to use connect USB type c with Nucleo F411RE. I connected: BOOT0 (red wire) and 5V (yellow wire) to USB C VCC GND (black wire) to USB C GND DP PA12 (green wire) to USB C DP1 DM PA11 (blue wire) to USB C DN1 BOOT1 PB2 (brown wire) to board GND Shown in the picture: https://lh3.googleusercon...
by heretop
Thu Mar 17, 2022 6:08 am
Forum: General discussion
Topic: Problem with i2c EEPROM
Replies: 3
Views: 1632

Re: Problem with i2c EEPROM

fpiSTM wrote: Wed Mar 16, 2022 8:42 pm Have you wired pull up resistors on each i2c line?
Thanks for the help! Yeah, after add 10k pull up, it works!
by heretop
Wed Mar 16, 2022 6:17 pm
Forum: General discussion
Topic: Problem with i2c EEPROM
Replies: 3
Views: 1632

Problem with i2c EEPROM

I try to use 24LC32 ( http://ww1.microchip.com/downloads/en/DeviceDoc/21072G.pdf ) i2c EEPROM with Nucleo F411RE and wire.h. I connect SCL pin 6 of EEPROM to D15 and SDA pin 5 of EEPROM to D14 as shown in the picture: https://lh3.googleusercontent.com/pw/AM-JKLUcewGOhR1dRv4K_y6vzWLAgVOWTIasGpSow0ekR...
by heretop
Thu Dec 16, 2021 5:09 pm
Forum: General discussion
Topic: HardwareSerial U(S)ART RX/TX level inversion for F407
Replies: 1
Views: 1281

HardwareSerial U(S)ART RX/TX level inversion for F407

Hi, I want to add inversion to the RX pin of F407 U(S)ART. There is similar thing added to HardwareSerial for F3 and F7 https://github.com/stm32duino/Arduino_Core_STM32/issues/1418#issuecomment-995889715. But it is not possible for F4. May I know is there any way to do this besides the hardware way ...

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