Hello everyone,I think that I am missing some parameter in my calculation. I want to feed the clock to a microphone and I want the output clock to have a frequency of 48kHz x 64 = 3.072MHz. The 48kHz is the audio sampling freq and 64 is the decimatio...
Hi,I currently have a STM32L4R9VI (that contains the DFSDM + DMA) and I am planning to sample an IF signal ( up to 10 MHz frequency) using an external Sigma Delta Modulator AMC1305M05 (20Msps - 20 MHz frequency - 16 bits resolution). I am not an expe...
helloI have a question about the tutorial for the DFSDM excel file.https://www.st.com/content/ccc/resource/technical/document/technical_article/group0/1b/40/1d/43/1b/8d/47/65/dfsdm_tutorial/files/dfsdm_tutorial.xlsx/jcr:content/translations/en.dfsdm...
When I increase the value of FOSR and IOSR,Iam not getting the proper values output from the dfsdm filter it keeps varying and is not also proper HAL_DFSDM_FILTERREGULARSTARTDMA(&hdfsdm1_filter0) How to keep the values of FOSR and IOSR?
Hello Community,I am trying to post-process my just sampled ADC values with the DFSDM sinc-Filter and mainly the oversampler.The problem ist: My DFSDM doesn't output anything. I tried DMA and polling. Polling generates a timeout.I configured the ADC ...
Hello,if I start a filter with DMA enabled using method HAL_DFSDM_FilterRegularStart_DMA(&filter1, buffer, bufferLength), then the filter output is not right shifted. The right shift works, if polling and manual result query is used.I cannot find thi...
A lot of documents report that is possible to use DFSDM to encode and decode Manchester.Unfortunately i'm not able to find any example code.Any suggestion?
I need to find one STM32 which can connect 32+ microphones ，use I2s or SAI or DFSDM， synchrony run best.
// using Double-Buffer DMADMA_HandleTypeDef hdma ;StreamBaseAddr = DMA_CalcBaseAndBitshift(&hdma) ; // get the stream base addr if (HAL_DMAEx_MultiBufferStart_IT(&hdma, StreamBaseAddr, Buffer[0], Buffer[1], BUF_SIZE)) { Error_Handler(); ...
Hello,Currently I am working on STM32F769 DISCO board with STM32CubeIDE, my aim is to transfer DFSDM conversion results to FMC RAM using DMA. I am able successfully transfer data and verify it. However, when my total conversion length goes above a li...