STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...
Posted on April 05, 2017 at 12:48HelloI'm trying to read data from a GPS module that send packets with different lengths. I connected the rx line to another pin and enabled an interrupt on it, in this way I can 'timeout' the end of packet (packets a...
HelloI am implementing I2C transfer with DMA in stm32.Processor: stm32l152rdt6DMA Configuration:I would like to continuously receive 3 bytes from master, so I use circular mode.NVIC Configuration:I2C Initialization Code: hi2c1.Instance = I2C1; hi2...
We've also had problem with STM32L496 to implement dual-bank boot but it had been resolved by workaround. But for STM32L4R5, it is still not working.
In the STM32H743 errata sheet (ES0392 revision 4), section 2.3.1 “Conversion overlap may impact the ADC accuracy�? leaves me with three questions:If I am reading correctly, this means that running conversions on two different ADCs, from two different...
For each microprocessor of the ST series - there is public documentation in PDF format, for example DS10916 (pages 76-87). I want to make my own format for describing AFxx contact states. When you try to convert a table from PDF to text or Excel tabl...
Hello,STM32F4 and F7 have a VOSRDY bit in PWR->CSR. Documentation about the bit is nearly not existant. On a F4, while still running on HSI, I changed the VOS setting. Waiting for VOSRDY in that state never succeeded. Looking for that bit just before...
I am new to STM32 products and development software. I have purchased the STM32F303RE Nucleus-64 Eval Brd. I'm also using SW4STM32 IDE as there are more examples. I have had some success, I still have some fundamental questions. I also downloaded and...
Hi,I am using STM32F746 series MCU.1) After executing SCB_DisableDCache(), the CPU resets.2) The CPU starts up after repeating the reset multiple times.3) This symptom does not occur when debugging with JTAG (ST-Link) connected.Could someone know thi...
Hi,Is there somebody who really used the RTC using external crystal (HSE) of 32.768KHz ? I tried to use it but with no success.Using the RTC with internal oscillator of 40KHz (HSI) the all it's OK. I think that there is a problem with external crysta...
Hi,I want to use STME32L152 with LSE for RTC.I set the bit LSEON in the register RCC_CSR but the bit remains always 0. I proceeded the same with LSION and it is working well.I disable also the bit LSECSS and behavior is the same.The LSE oscilator did...
