STM32 MCUs Embedded software

STM32L4 USB low power stop

Posted on May 20, 2016 at 16:47I am porting an existing design from an F107 to a L4 micro in the hopes that I can push sleep current below 50uA.Currently I have only one barrier to achieving this low power: the USB device peripheral. No matter What ...

1. If we are logging data for the long period (48hour or 96 hour) Sometimes garbage file create in sd card other than our create file. 2. Some times file corrupt and not open on the computer. What is the reason of this issue??

Dear Community Member, I am working on the data acquisition and logging is SD card. In this project i am using stm32l452RET6 uC to interface SD card in SDIO mode with fatfs. It is working file when we are logging for the shorter time. I am creating o...

I'm having problem with B-L462E-CELL1 evaluation board to connect to truphone network via eSIM in Australia. I'm able to use plastic sim card from telstra to stablish the connection. I'm receiving this error:

AT%CEER?<CR> <CR><LF> %CEER: 1,"NAS-EMM","ATTACH","REJECT",#15,NO_SUITABLE_CELLS_IN_TRACKING_AREA<CR><LF> <CR><LF> OK<CR><LF>Here is the modem configuration:Cellular Service InfosModem state : 4 (Modem registered on network)Signal Quality ...

Resolved! Is there an example for the x-cube-azrtos-l4 for winusb

Is there an example for the x-cube-azrtos-l4 usbx stack showing how to implement the additional string descriptions and GET_OS_FEATURE_DESCRIPTOR features to allow an HID device to appear as WinUSB?

Issue with HTS211 - HardFault Handler

Hi ST Community,I'm using the B-L475E-IOT01A card and I have a problem. As soon as I run my code in Debug mode, I get the HardFault Handler (SIGTRAP) error. I want to use the HTS221 temperature sensor and I'm using the BSP for this sensor (hts211.h)....

Insufficient document of BL462E-CELL1

Hi!I have bought BL462E-Cell1. I need the documents of Murata Type1SC which is the key component of the discovery kit BL462E-Cell1. From the registration code printed on the sheet with BL462E-cell cannot give me the access to the documents of Murata...

Problem with HAL_I2C_Mem_Write_DMA when using page write to EEPROM M24256

I am using Stm32L431Rbt6 for page writing on EEPROM M2456.When using HAL_I2C_Mem_Write_DMA , I am getting interrupt HAL_MemTxCpltCallback , but data is not written on EEPROM when I do page read on EEPROM.I am using I2C1, dma channel 6. I have enabled...

Resolved! HAL_TIMEOUT while trying to combine several STM32L4R9 HAL examples into one project.

I'm building up an app on the STM32L4R9-Discovery board that needs a lot of IO: UARTs, USARTs, I2C, SPI,RTC, FatFS on the SD Card and others. I'm pretty new to the STMCubeIDE and C/C++ world so I've build up several test apps that start for the Disco...

Resolved! STM32L4 SDMMC + FATFS

Hi, I would like using SD card with FATFS and read/write to SD card.If i have bare-metal FW without DMA template enable it is work.But if I enable DMA template f_mount, f_open return FR_OK but f_write, f_read Disc_error.I setted in CubeMX SDMMC1- SD ...

Program doesn't run properly when debugger is not connected in STM32L476RE MCU

Posted on June 11, 2018 at 08:33 Hello, I am using STM32L476RE MCU for one of my application which publishes some data to server using MQTT and my wifi module communicates with MCU with USART2.I am using atollic truestudio to write a code and deb...