Ask questions, find answers, and share insights on STM32 products and their technical features.
Hi,I am confused with pin toggle timings, why I am getting non equal pulse widths like in the picture, I turn off all compiler optimizations and disable all of the interrupts, code is simple pin toggling. My controller is STM32L431 running on 80MHz.T...
This is on STM32F103C8 (bluepill)The A0 is connected to a voltage divider between bluepill's 3v3 and GND,And the output is very noisy. adding a delay did't do not much good```void setup(){Serial.begin(9600);// Enable ADC1 and configure itRCC->APB2ENR...
I am Juan de Jesus, I am a graduate student in engineering. I just bought a NUCLEO STM32H755 board.I am writing a simple code to test this board, an algorithm that makes LED 1 blink.The program compiles very well, and after this, I have made the conf...
Posted on January 11, 2015 at 20:46I'm having problems with communication through SDIO. In the initialization process, where are only sent commands, everything works, but the function HAL_SD_SendSDStatus is returning SD_START_BIT_ERR. Informations a...
When using RTC, the GPIO pin state of PA4 may be corrupted. RM0454, section 23.3.3 says: "In addition, it is possible to output RTC_OUT2 on PA4 pin thanks to OUT2EN bit. Thisoutput is not available in VBAT mode. The different functions are mapped on ...
Hello everyone,I and my collegue have more than 20 years experience on embedded desing with MCUs. We have a problem which we haven't seen this kind of problem before. I guess someone can help us in here.MCU: STM32F756IDE: Project created from cubeMX ...
This is a question about Receive Only Master (SPI_DIRECTION_2LINES_RXONLY).I was able to output the waveform shown in the attachment using Receive Only Master.However, no data is being received(tmp). Why is this? The process is performed in the foll...
The reference manual 0433 Rev 8, p. 900, section 23.5.5 says "This bitfield has no effect when in memory-mapped mode (FMODE = 10)." But p. 901, section 23.5.6 says: "11: Memory-mapped mode".Could someone please let the authors fix this?Thank you.
Hello,I have an ISR for TIM4 running on an STM32F2 microcontroller. The ISR triggers on a rising edge of the timer input channel, and its purpose is to record the microsecond timestamp of the last two rising edges in global variables for other parts ...
Hi,I'm using STM32G474 to drive my BLDC motor, i want to trig low-side phase current sensing ADC when the lower MOSFET is conducted. But the wired thing is even though CMP2 callback did be called by interrupt, ADC also not triggered (ConvCpltCallback...
