Hi everyone,1, What are the acceptable buffer sizes for the DFSDM PDM mic configuration, give me some examples?2, Can I use ( int32_t buffer[4000] ) for the PDM buffer?3, How do I sync different sensors with the DFSDM PDM mic?
PDM mic will be set up as 8 or 16 kHz sps. icm will be set up as 4kHz sps.data is received in sync and then stored in a buffer then sent to pc.How do i sync up a pdm microphone and a icm IMU using stm32?What communication to use with the PDM mic, tha...
Hi,1, Im searching for an mcu which can handle a HS/FS communication(sends data to PC 50*8830bytes) with a PC, and an USB fs communication with a external 4 port hub. the hub will connect 4 stm's which sends data(1316 bytes) periodicaly and sincroniz...
Hi,I been trying to set up a stm32F405 mcu usb host with a hub onto which 4x stm32 device is connected. I would use these 4 devices to send data to the main mcu periodicaly at 50Hz, and to have the data transfer syncronised from the 4 devices to be o...
I'm Using an STM32f446 processor and want to read data from the four ICM42688-P sensor at 2kSPS. This sensor is on a common SPI bus. Main criteria is to have the sensors data synchronized so that I get the exact data points from all the four sensors....
Anyone any news on this topic?FPalm did you get further with the project ?How did you select the buffer size for the DFSDM DMA where the PCM is stored?
With USB,- 2 meter cable can be used, without data corruption,- less wires simplifying the design - There are some sensors on the other end which need to be gathered and sorted into a buffer, and then sent to the main STM32 Node- This Main Node also ...
I see, then SPI would be the best solution for STM, and just leave the USB stuff for standard functions sending data to PC.While I was searching for references for hubs I saw some hub solution for Nuvoton, it has some library which theoreticaly (is i...
Thanks for the feedback.Later I found some referece for code, not yet understanding fully: https://github.com/mori-br/STM32F4HUBI atached some connection graph, two versions from which will be chosen to be used.One is to use, one interface and connec...