Search found 49 matches
- Fri Aug 25, 2023 9:29 am
- Forum: Projects
- Topic: Voltage divider on Nucleo STM32L452RE bad accuracy
- Replies: 8
- Views: 7852
Re: Voltage divider on Nucleo STM32L452RE bad accuracy
The internal resistance of common multi-meter is around 10M and can affect voltage measurement if you choose high values for the potential divider.
- Sat Aug 19, 2023 11:41 am
- Forum: General discussion
- Topic: Missing SPI1 and SPI2 difinitions
- Replies: 2
- Views: 1356
Re: Missing SPI1 and SPI2 difinitions
Please spend some time search and read properly before raising an unwise question.
https://github.com/stm32duino/Arduino_C ... ki/API#spi
https://github.com/stm32duino/Arduino_C ... ki/API#spi
- Thu Jun 29, 2023 2:31 am
- Forum: General discussion
- Topic: Program an STM32F411 with an Raspberry Pi
- Replies: 13
- Views: 2625
Re: Program an STM32F411 with an Raspberry Pi
You are not alone regarding the frustration to enter DFU mode with STM32F411. There is a workaround below: https://www.stm32duino.com/viewtopic.php?t=1680 Here is a bit explanation about the problem associated with HSI. https://www.st.com/resource/en/application_note/an2606-stm32-microcontroller-sys...
- Tue Jun 06, 2023 5:38 am
- Forum: General discussion
- Topic: SIMPLE QUESTION BLUE PILL COMMUNICATIONS SETTINGS
- Replies: 10
- Views: 2400
Re: SIMPLE QUESTION BLUE PILL COMMUNICATIONS SETTINGS
Yes your understanding is correct.
v2.1 has Tx/Rx pins which can be connected to the Bluepill serial port.
v2.1 has Tx/Rx pins which can be connected to the Bluepill serial port.
- Tue Jun 06, 2023 2:19 am
- Forum: General discussion
- Topic: SIMPLE QUESTION BLUE PILL COMMUNICATIONS SETTINGS
- Replies: 10
- Views: 2400
Re: SIMPLE QUESTION BLUE PILL COMMUNICATIONS SETTINGS
I always use STLink v2.1. It comes with a virtual com port. STLink v2 do not have the virtual com port. Some more info here: https://stm32world.com/wiki/DIY_STM32_Programmer_(ST-Link/V2-1) Nucleo boards also has a built-in STLink v2.1 and it can be "broken off" from the board: https://jeel...
- Thu Dec 15, 2022 2:25 am
- Forum: STM32F1 based boards
- Topic: tm1637 arduino ide library issues -----SOLVED----
- Replies: 5
- Views: 6572
Re: tm1637 arduino ide library issues -----SOLVED----
So you have used Maple core.
If you use STM32 core, the JTAG pins PB3, PB4, PA15 will be released once you set them as output port:
If you use STM32 core, the JTAG pins PB3, PB4, PA15 will be released once you set them as output port:
Code: Select all
pinMode(PB3, OUTPUT);
pinMode(PB4, OUTPUT);
pinMode(PA15, OUTPUT);
- Sun Nov 20, 2022 10:39 am
- Forum: General discussion
- Topic: STM32F103C8T6 with u8g2 library problem
- Replies: 1
- Views: 5248
Re: STM32F103C8T6 with u8g2 library problem
Not sure if the core you used was up to date. You can install the up to date version below: Roger's original core: https://github.com/rogerclarkmelbourne/Arduino_STM32 or A fork of Roger's and is more frequently maintained: https://github.com/stevstrong/Arduino_STM32 When picking options in the u8g2...
- Fri Nov 04, 2022 5:13 am
- Forum: Custom design boards
- Topic: Advice for baking STM32 ICs
- Replies: 2
- Views: 8077
Re: Advice for baking STM32 ICs
Although the chips are not moisture-proof, I have not heard of any failures due to moisture trapped inside the chip. I do not keep my development boards within enclosures and I have not encountered failures after prolonged storage. Since your boards are partially functional, I suggest to investigate...
- Sun Sep 25, 2022 11:15 am
- Forum: General discussion
- Topic: BluePill:PB2 state change not detected when connecting to ground - is my core out of date?
- Replies: 6
- Views: 6730
Re: BluePill:PB2 state change not detected when connecting to ground - is my core out of date?
PB2 is Boot1 of the bluepill and generally a jumper is fitted. The Boot1 jumper is usually tied to LOW. You should either tie the jumper to HIGH or remove this jumper before running your code.
- Sun Aug 28, 2022 6:56 am
- Forum: General discussion
- Topic: SPI1 is in use, how can I use SPI2 for a MicroSD card?
- Replies: 3
- Views: 1915
Re: SPI1 is in use, how can I use SPI2 for a MicroSD card?
Why have you made it so complicated? No need to anything on SPI1. Just need to define the pins of SPI2 for your board. #define SD_PIN PB12 #define SetSDSpeed 48 SPIClass SPI_2 (PB15, PB14, PB13); // for blackpill STM32F401 or bluepill STM32F103 #define SD_CONFIG SdSpiConfig (SD_PIN, DEDICATED_SPI, S...