Does STM32F4 has SWI example?
Posted on September 25, 2017 at 03:20Hi.I'm looking for example of Software Interrupt in STM32F10x_StdPeriph_Examples, STM32F4xx_DSP_StdPeriph_Lib_V1.8.0Can I find that in Examples?
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uint16_t sometimes overflow in 255
Posted on September 25, 2017 at 00:19Hello friendsI defined a variable uint16_t x;in my code I will compare x >= 500 Most of the time works fineBut sometimes variable is Overflow in 256 i see in debug variable is 0 after 255+1i using IAR , STM32F103...
Resolved! Big ball of DMA questions
Posted on September 24, 2017 at 08:01I'm about to start implementing driving a single GPIO pin with DMA timer-driven bit-banging and I have a bunch of questions. I'm throwing them out here first in case people know the answers to some (or all) of th...
STM32F4xx NVIC->ISPR Question
Posted on September 23, 2017 at 16:27When is the ISPR register used?ISPR [0] | = 0x00000001 << 6; // (EXTI0 Position)Does this code convert the EXTI0 interrupt into the pending state so that the EXTI0 interrupt should not be executed?But the interru...
trigger timer with external pulse...
Posted on September 22, 2017 at 23:14hi i need start timer with external pulse at falling edge at one pin and i need stop timer with external pulse at falling edge at one pin can convert two 16 bit timer to one 32 bit timer ?on stm32f103c8t6 my time...
stm32l4 CubeMX touch sense
Posted on August 30, 2016 at 11:56Hi,I'm trying to figure out, how to use the CubeMX generated project for touch sense aplication. I'm able to detect the change on the 3 touch buttons, but i can't figure out, how to detect on which touch button did ...
I/O Mirroring
Posted on September 26, 2016 at 16:23I need to simply capture an input level and then output the same logic level as soon as possible on another pin.This can be simply done with EXTI, but I was wondering if there is a passive peripheral based soluti...
Noise levels in ADC in STM32L4?
Posted on September 19, 2017 at 23:41I have a custom board using an STM32L452. I'm doing some testing of the ADC and am finding pretty high levels of noise.I have a rail-to-rail op amp driving the ADC pin with a 300 ohm resistor from the amp to the ...
DAC noise on SDCARD reads - SOLVED
Posted on September 03, 2017 at 23:44I have a custom board (2 layer) using a STM32F446RETx (3.3v) with STM32CubeMX, V4.22 with firmware V1.16.0. I am reading/processing MP3 files from a sdcard and there is a low-level but perceptible 'thump' in the...
I2C READ NO RESPONSE
Posted on September 23, 2017 at 07:34Dear All,I am configuring I2C for reading EEPROM address.I am using PB6_I2CSCL and PB7_I2CSDA pin and have connected EEPROM AT24C A2,A1 and A0 pin to GND. I have written following code to read the EEPROM but i am...
