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New possibilities for the ultra-low power segment!

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...

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Backup SRAM using CubeMX

Posted on January 17, 2018 at 11:30The STM32F4 has 4 Kbytes of backup SRAM.They seems not to be accesable at a certain adressThe HAL lib has also a driver for it. But the functions are not enabled default. The library stm32f4xx_hal_sram is needed fo...

SMT32F031 Power Sequencing

Posted on March 05, 2018 at 05:29In Section 3.5.1 of the STM32F031 datasheet states:�The VDDA voltage level must be always greater or equal to the VDD voltage level and must be established first.�The statement �VDD voltage level and must be establis...

gerald23 by Associate II
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Looking for Programmable Logic Options with ST

Posted on March 05, 2018 at 05:28Does ST have support for programmable logic in their micro-controller portfolio (like http://www.cypress.com/products/psoc-5 or http://www.microchip.com/design-centers/8-bit/peripherals/core-independent/configurable-...

Justin1 by Senior
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Resolved! ['F446 documentation and SVD] Misnamed MCKDIV

Posted on January 24, 2018 at 21:07Should be MCKDIV.Also, the same typo is in the relevant .svd files, making thus MCJDIV appear as xCR1 bitfield name in debuggers (spotted in https://community.st.com/thread/46652-f446-documentation-saispdif-tx-bit-...

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STM32L0x3 and STM32L0x2 - ADC_SMPR confusion

Posted on December 01, 2017 at 17:55References:STM32L0x3 - RM0367, Rev 5STM32L0x2 - RM0376, Rev 4In both cases, the description of ADC sampling time register (ADC_SMPR) says,Bits 2:0 SMP[2:0]: Sampling time selectionThese bits are written by softwar...

ADC Sampling Time STM32L053C8

Posted on March 27, 2015 at 18:35When I configure the ADC sampling time using SMP[2:0] of the ADC_SMPR register, the resulting conversion time (1.5 cycles + sampling time) does not match what I expect.  RM0367, v2, section 14.13.6 lists the followi...

RM0367 (STM32L0x3) discrepancies

Posted on January 10, 2017 at 06:53&sharp1RM0367 Rev.5, Ch. 6.1.6  Dynamic voltage scaling configuration requires toPoll VOSF bit of in PWR_CSR. ait until it is reset to 0.twice. The note at the end of the same chapter says,During voltage scaling co...