STM32 MCUs products

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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...

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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...

STM32L0 Stop Mode Not Working Properly

Posted on September 23, 2017 at 20:16 Hello, Currently, I am working on optimizing current consumption by using STOP Mode of the STM32L053C6T6 processor. I'm facing a problem that I can not get through, and I'm very happy if you can help. ...

STM32L4 Serial audio interface

Posted on September 08, 2017 at 14:46Hello,I want to implement an audio record based on STM32L4. To do that  I want to use the SAI peripheral. By Referring to the STM32L4 datasheet the SAI don't support a microphone interface. So, in such case shall...

LMS FILTER USING STM32F4

Posted on September 23, 2017 at 10:49Hello,I am using stm32f4 discovery. I want to use LMS filter for my application, but when I have initialized my filter coefficient by 1 or 0 and 0.5  its filter coefficient is not updating.step size is 0.01. and ...

STM32F103 External Switch Interrupt Problem

Posted on September 22, 2017 at 10:00I am using  a custom board in which i have connected 5 switches to the pins as given below and pins are configured as Pull Up and i am triggering interrupt on falling edgePB9 <===> External Switch 1      PB5 <===...

STM32L4 USBD receive

Posted on September 22, 2017 at 15:45I am currently using the 'STM32CubeFunctionPack_MOTENV1_V3.0.0' for SensorTile platform.I does support the USBD_cdc function in sending data to PC (Print) but missing the receive code.Since there is a ST BLE on b...