STM32 MCUs products

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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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[error report] STM32F1 I2C HAL BUG I2C_MasterTransmit_TXE

Posted on October 18, 2015 at 00:09Here is original function static HAL_StatusTypeDef I2C_MasterTransmit_TXE(I2C_HandleTypeDef *hi2c) {         /* Write data to DR */       hi2c->Instance->DR = (*hi2c->pBuffPtr++);       hi2c->XferCount--;   if(hi2c...

justas23 by Associate II
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chronometer... is the right way

Posted on April 15, 2016 at 18:17Hi,I'm building a time trial race, to do this i'm using the STM32F334R8T6 microcontroller with the RTC and timestamp, resolution must be of hundredths of a second, for this type of project is correct to use a RTC clo...

Damiano by Associate II
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STM32F303RBT6 - Bad Analog Section

Posted on April 18, 2016 at 23:16I had previously received the following response on this question from this forum...This is not a known issue and the part has been shipped and used in this manner already in K units without any returnsUse the standa...

Phase angle calculation

Posted on April 19, 2016 at 13:32  Hi Everyone. I’ve been trying to calculate the phase angle between two sine waves differing only in phase, and I’ve got it working in MATLAB, using the FFT of each sine wave and then applying MATLAB’s angle functio...

kvresto by Senior
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STM32F7 DMA fails to write to SRAM

Posted on April 19, 2016 at 15:05 We've ran into a very strange DMA issue recently as we have been expanding our code. We noticed this problem after adding some new libraries which use up a lot of ram, which caused our existing spi+dma drivers s...

Bit-banding AHB2 in STM32L4. Is it possible?

Posted on April 19, 2016 at 11:33Bit-banding is a fine approach for manipulating bits, especially GPIO. In STM32L476 GPIO are located in AHB2 address space. However, AHB2 address space is located far beyond bit-band  region: 0x40000000   APB1, APB2,...

serafim by Associate II
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Possible wrong configuration for FMC with Cube

Posted on April 19, 2016 at 12:26Hi,I am reading the RM0090 about the FMC configuration since I want to interface an stm32f427 with a SRAM through the FMC controller. At some point in the manual it is reported a figure that represents the memory arr...

valerio2 by Associate II
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undefined symbol stdout_putchar from retarget.c

Posted on April 19, 2016 at 14:52I created a keil MDK5.0 project based on STM32F030K6 and discovery and I check the option for retargetin stdio, getting this errorwhat am i missing? should i manually link some missing library? plz helpthanks

stanzanim by Associate III
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