STM32 MCUs Products

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Forum Posts

'core held in reset' issue

Posted on January 24, 2018 at 09:58Hi I'm using the STM32F745VE on a Product.I have been using a nucleo board (with ST link utility) to program the product via SWD connector (3V3 provided separately) which has been fine so far.I am now at our suppli...

Resolved! Configuring DMA for SAI

Posted on January 23, 2018 at 17:40Hi,I'm trying to transfer data to SAI's fifo via DMA (memory-to-peripheral). I'm following reference manual's instructions for setting up DMA for SAI.As soon as I enable the DMA channel FEIF4 (FIFO overrun/underrun...

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Problem getting proper current on powerSTEP eval boards

Posted on January 24, 2018 at 09:11Hi,  I am using NUCLEO-IHM03A1 eval boards on top of a Nucleo STM32F4IiREI to drive a NEMA23 stepper motor.The motors are stalling at relatively low speeds with no additional load. I don't seem to be getting the re...

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Injected ADC channels only return 1 value

Posted on January 24, 2018 at 09:44I'm using an STM32F401RET with code generated in the cube(v4.23) with F4 library(v1.18).The ADC is set up to sample one channel under a trigger from a timer with the values going to DMA. When 256 samples have been ...

Question about SDMMC_DLEN register

Posted on January 23, 2018 at 19:57We are developing a new product using STM32F767 processor, with a microSD card for storing data.  Page 1472 of the Reference Manual (RM0410) contains a description of the SDMMC data length register (SDMMC_DLEN).  T...

Configure I2C clock speed on STM32L476JG

Posted on January 24, 2018 at 05:25I am trying to read data from an I2C peripheral. This peripheral requires the I2C clock to be at 100kHz. When probing with a scope, the SCL line shows 400kHz. From the STM32CubeL4 I2C examples, the I2C_timing regis...

How to use SD card memory as Extended RAM

Posted on January 23, 2018 at 13:24Hi STM community, Currently we are developing an application with STM32F779I eval board.I am using Cube Mx and System work bench for STM32. We are facing issue with RAM.My application uses FreeRTOS, FatFS and SD Ca...

Problem with stm32F446 output on pa6 and pa7

Posted on January 22, 2018 at 21:58Hi, I've made a pcb using the stm32F446 mcu, 64 pin package, but I have a problem with it. I have four LED's attached to pa4 to pa7. Two of these work fine, but the ones on pa6 and pa7 only lights up entirely when ...

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