1. Are you sure, the input voltage is exactly 3.3V ??
2. Are you sure that those resistors are exactly 4.7M and 2.2M ?
Search found 403 matches
- Thu Aug 24, 2023 8:35 pm
- Forum: Projects
- Topic: Voltage divider on Nucleo STM32L452RE bad accuracy
- Replies: 8
- Views: 4466
- Sat Aug 12, 2023 11:43 pm
- Forum: General discussion
- Topic: STM32F103C8T6 blue pill INPUT pullup issue
- Replies: 2
- Views: 959
Re: STM32F103C8T6 blue pill INPUT pullup issue
1. If you're using pullups, then with button pressed you get 0, and not pressed you get 1.
2. PC12-PC15 pins cannot source current, but they can sink, so pin provides GND to LED. 0 = on, 1= off
2. PC12-PC15 pins cannot source current, but they can sink, so pin provides GND to LED. 0 = on, 1= off
- Mon Aug 07, 2023 7:28 pm
- Forum: IDE's
- Topic: Arduino IDE Bootloader for STM32F072C8T
- Replies: 1
- Views: 2714
Re: Arduino IDE Bootloader for STM32F072C8T
F072C8 has DFU bootloader, so just reset it into bootloader and you can flash it using USB.
Also STM does not provide software USB bootloaders.
You can probably make one using this: https://github.com/Serasidis/STM32_HID_Bootloader
Also STM does not provide software USB bootloaders.
You can probably make one using this: https://github.com/Serasidis/STM32_HID_Bootloader
- Sat Jul 29, 2023 4:28 pm
- Forum: Libraries & Hardware
- Topic: PWM pin in STM32F103C8 blue pill
- Replies: 8
- Views: 5012
Re: PWM pin in STM32F103C8 blue pill
PWM does not control voltage. You cannot use PWM to lower voltage, it only controls time how long power is turned on and off.
Voltage reading will depend on your meter, PWM frequency, board hardware and MCU.
Voltage reading will depend on your meter, PWM frequency, board hardware and MCU.
- Sat Jul 22, 2023 1:26 pm
- Forum: General discussion
- Topic: I want to create a 'hex' file via 'STM32Duino' (Arduino sketch).
- Replies: 13
- Views: 2185
Re: I want to create a 'hex' file via 'STM32Duino' (Arduino sketch).
No. .bin extension is for "binary". STM32 MCUs use binary files for firmware upload. You need .bin file if you want to upload firmware to STM32 MCU, unless you have an application that converts HEX file into binary format before uploading it.
- Tue Jul 18, 2023 11:10 pm
- Forum: Projects
- Topic: standalone board based on STM32F303K8T6
- Replies: 4
- Views: 2951
- Sun Jul 16, 2023 9:01 pm
- Forum: STM32F4 based boards
- Topic: Cannot upload Blackpill F411 v3.0 from Arduino IDE
- Replies: 7
- Views: 2462
Re: Cannot upload Blackpill F411 v3.0 from Arduino IDE
Ground UART1 RX (PA10) pin while you reset board.
If MCU gets anything on UART it will start bootloader with UART enabled, not USB.
If MCU gets anything on UART it will start bootloader with UART enabled, not USB.
- Sun Jul 16, 2023 5:22 pm
- Forum: Projects
- Topic: standalone board based on STM32F303K8T6
- Replies: 4
- Views: 2951
Re: standalone board based on STM32F303K8T6
Nucleo boards do not have software bootloader. They use ST-Link programmer.
- Mon Jul 03, 2023 10:16 pm
- Forum: General discussion
- Topic: Program an STM32F411 with an Raspberry Pi
- Replies: 13
- Views: 1987
Re: Program an STM32F411 with an Raspberry Pi
@Sparky
mini/micro USB is just a connector. You don't need it to use USB. Just connect D+, D- and GND.
mini/micro USB is just a connector. You don't need it to use USB. Just connect D+, D- and GND.
- Wed Jun 28, 2023 9:41 pm
- Forum: General discussion
- Topic: STM32F103C8T6 how to Thread?
- Replies: 6
- Views: 1022
Re: STM32F103C8T6 how to Thread?
myksj1105 Same thing. Parallel threads can be achieved only on multi core MCUs. Concurrent threads can be achieved using RTOS. There is a FreeRTOS for STM32duino: https://github.com/stm32duino/STM32FreeRTOS But concurrent multithreading should be used only if there is no other way. Jumping between ...