best way to generate microseconds delay
Hi,Can anyone recommend the best way to generate microseconds delay??and how to generate it??
Forum Posts
STM32L151 maximum ADC input voltage through 5V tolerant pin
Hello everyone,We're working in a design with the STM32L151ZE and a power supply of 3V. We're trying to design a connector able to detect when specific resistances are present.I've seen that there are some inputs of the chip that are 5V tolerant, whe...
STM32F429 as a I2S master to external high quality DAC: I2S_CKIN ? Jitter ?
I wish to use my STM32F429 as a top-notch audio player, driving a good I2S DAC. 192KHx, 24bit, stereo. First of all, can I bypass the internal clock scheme by sending a high quality clock to PC9 (I2S_CKIN) ? From my calculation, I'd need a 49.152Mhz ...
How to achieve 217ps time resolution of HRTIM STM32F334xx?
Hey guys,I'm trying to understand STM32F334 high resolution timer (HRTIM) in some details.It says the timer has 217 ps resolution. But how can I achieve that in practice? Let's say I generate PWM signal with 1MHz frequency and 500.00ns pulse width. (...
Blankcheck fails after successful FLASH_Erase_Sector (HAL_FLASHEx_Erase) in STM32H743
I have a strange behaviour on a new project with a STM32H743 processor and I am currently stuck.After a successful (HAL returns HAL_OK) erase operation of a flash sector (e.g Sector 4) the blankcheck routine - which worked on all of my other H743 pro...
STM32G0 - Determining Vref
Hi, using STM32G071 Nucleo Board.Set Vref to internal 2.500 Volt.Set jumpers accordingly (SB28 ope´n, SB21 close) and measure 2.5001 at pin AVDD (CN5.8) on Nucleo Board. So far, so good.Now try to determine AdcVref in software by reading ADC_CH_VREF ...
Handling filters for CAN1&CAN2 and FIFO0 & FIFO1
Hi everybody,I'm using an STM32F469BI and I'm trying to receive on both Can1 and Can2, and handle messages on both FIFOs. For example, my board can be commanded to wait for messages on CAN1 FIFO0 and CAN2 FIFO0 or CAN1 FIFO0 and CAN2 FIFO1,..So i'm a...
how to flash via dual boot option on stm32l476rg while using mbed os-version 5.x?
Hello,I have to do flash via dual boot option on a STM32L476RG board using an external board NUCLEO- L476. when I am trying to change the option bit via program in which i am using HAL_FLASHEx_OBGetConfig and HAL_FLASHEx_OBProgram in our main program...
Is ther a possibility to search for MCU's by peripheral (SPI) speed?
Hello everybody!This is my first post. I hope that i am on the right corner of this Q&A section.For an application i need a MCU that is capable to run the SPI with a clock-frequency of at least 80MHz (Master transmit) and at least 50MHz (Master recei...
Can't write to CM4 core
I have an stm32h745zit6 on my own board, where I can write correctly to the CM7 section (0x0800 0000 to 0x080F FFFF range) but not to the CM4 section (0x0810 0000 to 0x081E FFFF range), I also can't do a full erase of the chip, and it will give me an...
