Posted on July 07, 2013 at 22:56The STM32L series does no have a dedicated pin for a battery backup to keep the RTC running when the supply is removed.What is the recommended way to provide battery backup of the RTC for this series? #rtc #battery...
Posted on March 25, 2015 at 07:58HelloI have been using Freescale 8-bit for all of my projects.My most used device was https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CB0QFjAA&url=http://cache.freescale.com/file...
Posted on March 26, 2015 at 10:08Hi, stm32 guys,Will the STM32CubeMX support HID+CDC composite device for stm32L152?I can find the HID+CDC composite device sample code on STM32F0x2.But my stm32L152 project is build on CubeMX base, the function name ...
Posted on March 25, 2015 at 07:03Thank for your look and help. I want to send a string ''&sharp1250♯'', and the 1250 is the sensor value. So I do some try. uint16_t ch=1250; uint16_t Value[4]; char str[10] = ''♯''; ...
Posted on March 19, 2015 at 14:25Hi I´ve problem with programming stm32l053, after debug get error ''Cannot identify target as a STM32L family''. I´m using Eclipse Indigo under Linux, st-link/v2 debugger, OpenOCD, arm-none-eabi-gdb. My reports Open ...
Posted on May 16, 2013 at 19:28 I just spotted some invalid defs in the CMSIS stm32F4xx.h definitions file. In the section on bitband definitions it has entries for backup SRAM, SRAM2 and CCM SRAM: #define CCMDATARAM_BB_BASE ((uint32_...
Posted on March 25, 2015 at 16:47An application requires an external Vref+ of 3.0VDC and Vref- of 0, VDD of the chip is 3.3VDC. Whats the best method to set this Vref+ to the STM32 micro controller?
Posted on July 16, 2014 at 07:46Hi All,Using the standard Cube (F4 v1.30) HAL_SD drivers, I randomly get the SD_TX_UNDERRUN'' error when writing using HAL_SD_WriteBlocks().It happens totally at random.I have tried:- using older libraries - same resu...
Posted on March 03, 2015 at 20:35Hi ST Forum,I want to implement a DMA RS232 device (with a MAX232 transceiver), where if the master sends a certain message (e.g. 0x01), then the STM32 will send back a certain message (e.g. 0x02). I got the DMA Tran...
Posted on March 25, 2015 at 15:06I am having a problem getting an Adafruit FTDI Serial TTL-232 Serial USB adapter to work with USART1 on an STM32L1 processor. When the adapter is not connected to the processor, or when the processor is powered and i...
