All Questions
4,764 questions
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STM32H573 code protection
I am considering porting a commercial design to STM32H573. The datasheet and manual describe a PRODUCT_STATE "option byte" located in FLASH memory. This "option byte" is discussed ...
- 790
0
votes
2
answers
101
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How to test speed of my 1GBps ethernet port board? [closed]
I built a board with STM32H. How to test the speed I'm getting at my 1GB ethernet port? I do not what to do static ping test I want do I'm getting 1GBPS or 900MBps speed on my port.
any ways?
- 169
1
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1
answer
66
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STM32 F302R8 UART RX reception error
I'm new in the STM32 world. I’m currently testing basic UART communication on an STM32 (STM32F302R8) with an HC-05 Bluetooth module, and I’m running into a strange issue with receiving data. I'm using ...
- 11
1
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1
answer
84
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How is systick interrupt set in this STM32 firmware?
I'm using STM32CubeIDE with HAL to program an STM32F3O3 MCU. In my firmware a custom function uartTimer is called inside the SysTick_Handler(which is in stm32f3xx_it.c) as:
...
- 2,075
2
votes
1
answer
81
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Is the STM32H573MIY3QTR compatible with optical pick-and-place?
My PCBA house says that they routinely solder WLCSP packages. Their pick and place machines have "optical alignment" but no "camera alignment". I assume that "optical ...
- 790
3
votes
3
answers
907
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STM32H573: What are all of these VDD pins for?
STM32H573 has a lot of VDD pins. Even the smallest package has 4 of them. But also the WLCSP which has a separate VDDIO2 pin also has 4 VDD pins. What are these for?
Based on my experience with other ...
- 790
1
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1
answer
72
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Does this Nucleo board work using USB (ST-LINK) port for two-way serial communication?
I am trying to communicate with a Nucleo board (STM32F303K8) using its USB port. The board’s schematics show that the USB port is connected to the ST-LINK debugger. Normally, I know this port is used ...
- 1,124
1
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1
answer
115
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Should I add an RC filter to the analog input pin (STM32F103 ADC) for a triac light dimmer application?
I'm designing a custom PCB using an STM32F103 microcontroller to control a triac-based light dimmer. The firing angle for the triac is determined by reading the voltage from the potentiometer.
The ...
0
votes
1
answer
71
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STM32 FDCAN: Frames visible on CANable (candump) but TX still reports ACK error — scope shows ACK notch
Summary:
Two-node bus: STM32 (FDCAN1) ↔ CANable (SocketCAN) at 500 kbit/s
candump can0 shows frames from STM32, but STM32 keeps flagging ACK error and increments TxErrorCnt.
Scope on CANH/CANL (diff ...
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1
answer
111
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Charge Pump Circuit Connected to STM32 BOOT0 Pin - Why and How?
I found this charge pump circuit in a design where the output from BOOT0(already pulled to GND) of STM32G431CBTx drives the CP_PWM signal. Can someone explain why this configuration is used?
My ...
- 55
2
votes
1
answer
207
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Best MOSFET for STM32 [closed]
I need to select a MOSFET for the STM32F103 (Blue Pill) with parameters that allow it to fully turn on completely when supplied with 3 volts and withstand a current of 2A. I've hoped that LLVM gave me ...
- 57
1
vote
2
answers
51
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Selecting External Clock Source for NUCLEO-WB55RG Board
I am not finding the clock frequency of the oscillator used on the NUCLEO-WB55RG board?
What's the value?
Where can I find it?
How to select it as clock source for the MCU?
Which one should be ...
- 21
1
vote
3
answers
433
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Custom PCB shorts at 3.3-gnd and miso-sck pins only after soldering MCU chip
I made a PCB and got it manufactured the PCB does not have any shorts (specifically between 3.3v, ground, sck and miso of an ADC SPI pads) when the MCU chip (stm32h563zit6) is not soldered
but the ...
- 19
0
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1
answer
74
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Getting SD card to IDLE state with an STM32L432
I have been having difficulty getting an SD card to initialize to communicate over SPI. I am using a 32GB PNY Elite SD card, and the microcontroller I am using is an STM32L432KC. Below is the code I ...
-6
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1
answer
98
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How can I protect an MCU ADC pin from high fault currents when sensing large overcurrent via a current monitor output
I’m monitoring large currents (~200A normal) using a current sense output (IMON) from a high-side driver. In a fault, the current can spike up to ~1000A almost instantly, possibly creating a voltage ...
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