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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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Skipping a memory sector with STM32F401

Posted on December 08, 2015 at 08:56Hello, in one of the projects my device regulary goes to standby and I need a place to buffer the data. Since the F4 series do not have so many small sectors and the program already takes over the first 4 smallest...

matas by Associate II
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STM32F40x flash storage

Posted on December 07, 2015 at 15:33Hello there,I am using stm32f407vtg (1MB flash). Apart from user program, I need to store some additional data in the flash memory. I need 3 banks: 1kB, 16 kB and 64 kB. I just expirienced that I need to erase who...

MCU too hot!!

Posted on December 07, 2015 at 18:24Hi to all, I realized my first pcb using a STM32F030K6 MCU. The project is a very simple one, that is no external oscillator, only two leds and a usart interface.I can regularly download the program using ''flash ...

STM32Cube FatFS USB disk Problem

Posted on December 07, 2015 at 17:13Hi have a SRAM Disk working using FATFS and USB. I can read and write files to the disk from my processor (STM32f427zit)  but the files do not get updated in windows explorer on the PC. If if unplug the USB and th...

jowen by Associate II
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Communicating with SIM900 over UART

Posted on December 04, 2015 at 12:47I'm using STM32F411RE board and trying to communicate with SIM900 over UART. I'm simply trying to send.I put some parts of my code and would appreciate your help. I think there's some configuration issue in UART p...

stm32l476 clearing pending bit via bit banding alias

Posted on December 07, 2015 at 09:27Hi All,Attempting to clear a pending bit in the EXTI_PR1 register via its bit banding alias clears another pending bit as well. When I try to clear the bit20 (RTC periodic alarm) after wakeup by writing 1 to its a...

kor9 by Associate
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Choice and design crystal for STM32F1xx?

Posted on December 06, 2015 at 13:35I have a few questionsforthe designand choiceof crystals 1. 32.768kHz. In datasheet is Recommended load capacitance max 15pF In AN2586 is ''To avoid exceeding the maximum value of CL1 and CL2 (15 pF) it is strongl...

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asrock70 by Associate II
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Startup code variable initialization

Posted on December 06, 2015 at 11:57Hellousing MDK-ARM , I want from startup code change the initialization of global variable after warm reset (Pressing reset button) ... But I dont know where to look ?The idea is I want the variable keep its value...

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