STM32 MCUs Embedded software

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SDIO FatFs sometimes returns FR_DISK_ERR

Posted on June 18, 2015 at 21:36Hi. I used HAL drive and example from STM32Cube_FW_F4_V1.6.0 on Open429I HW. FatFs reading file from SD card via SDIO sometimes returns FR_DISK_ERR. After the reset program reads four files. Usually it finish OK. Some...

jiri by Associate II
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STM32F417VG Weird Ethernet frame being received by DMA

Posted on June 20, 2015 at 18:59Hello All, I have configured the STM32F417VG Ethernet peripheral, attached it to the LAN8720 PHY interface, configured it all for RMII operation, and established a successful link from my target board (STM32F4 Discove...

danq by Associate II
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High-speed Data Transfer ADC-DMA-PC

Posted on June 20, 2015 at 10:54Hi everyone, I need to plot on my PC a signal that has a max frequency of about 86 KHz (i'm using an anti-aliasing filter with that cutoff frequency). I'm working with a STM32F4 Discovery Board. I configured the ADC ...

STM32F107 and USB Lib Mass Storage Device Speed Issue

Posted on November 18, 2013 at 15:54Hi,I am using the STM3210C-Eval board and the STM32_USB-Host-Device_Lib_V2.1.0 Host MSD example.It is working i.e it reads and writes to disk but it is slow. I need to make / save a 2 Mbyte file on the USB.The cod...

louis by Associate II
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STM32CubeMx 4.8.0 update Firmware FW_F4_V1.6.0

Posted on June 17, 2015 at 11:19Hi, i've CubeMx 4.8.0 and i want update the firmware of the STM32F4 board with the new FW_F4_V1.6.0. When i open a project that used fw 1.5.0 i can't understand how can i update to the new 1.6.0 firmware, in the setti...

stuk by Associate II
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stm32 sdhc 4GB problem

Posted on June 15, 2015 at 16:27hi, I'm using fatfs R0.11 on a stm32f4 for logging files on a SDhc card (sdio 4 bit): 32GB (16k cluster size). Log files about 1MB/file. Until a amount of 4GB of data (about 4600 files) all works perfect. Now, if the ...

USB CDC, MSD running together

Posted on December 11, 2014 at 13:04Hi, Can I configure the USB library to be CDC, MSD and DFU at the same time?I'm planing to use the STM32L053R8. #usb-composite #stm32l0 #usb-cdc-msd-stm32l0

yuvalk by Associate II
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HS USB Device Test Modes Missing From Library

Posted on February 26, 2015 at 16:43USB compliance for HS devices (and hosts) requires four specific tests be implemented in the firmware. Looking at ST's latest library, it appears they have not implemented this: usbd_core.c has a function called U...

jvavra by Associate III
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HS USB w/ External SMSC PHY

Posted on October 18, 2013 at 14:22I saw several posts going back a few years regarding an issue with several different STM parts interfacing with external PHYs from SMSC (now Microchip).  We have successfully implemented a STM32F405 with a USB3300....

jvavra by Associate III
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STM32F042C6T6 ADC Reading 8-10% Low

Posted on June 09, 2015 at 17:56 I have the ADC reading the voltage drop across a 10k thermistor setup in a voltage divider w/ a 57k resistor. If I probe the board itself I can easily read the voltage drop across the thermistor and to the appropr...