STM32 MCUs Products

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STM32L0 LPTIM in Stop Mode

Posted on December 01, 2016 at 23:27Hello everyone. I am a new member to this forum and this is my first use of STM32 products. I'm developing on the STM32L0 Discovery board and building off the LPTIM Timeout Example. Is it possible to start the LPT...

mitch2 by Associate
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Manuals - Numbers.

Posted on December 05, 2016 at 18:13ST document numbers/Titles?UM1734: I have this. I want to see if I have the latest revision so ----All along the bottom of each page is 'DocID025934 Rev 3'1. Doing a SITE SEARCH for 'DocID025934' or parts of it tu...

Stm32f4 fatfs sdio problem

Posted on November 30, 2016 at 18:41Hi,I am using fatfs sdio with my stm32f429 mcu. When i use f_open function in main loop it works well, but when i use it in timer interrupt callback function it fails, it does not return from fatfs. what can the r...

er3481 by Senior
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Hardware Error in M3 and M4?

Posted on November 29, 2016 at 13:23if i call the assembly instruction ''sub sp, sp, 0xF8'' alias ''BE B0'' (instruction code), the code is executed as a ''nop''. Checked with F103 and L471. Does anyone know about that or can confirm this? Is the as...

damh by Associate II
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STM32 embedded flash as micro file system

Posted on November 29, 2016 at 12:43Hi All, I need to use an stm2f411 embedded flash as little file system. There will be about 20 small files on it. I found the uffs file system which is seems to be good for this. I found some information in stm32...

zamek42 by Associate II
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PLL_Q for USB

Posted on November 18, 2016 at 04:52STM32L476RG on Nucleo - Porting over the example from EVAL board with 8Mhz Crystal STM32CubeL4 - HAL demo. If using the HSE with an input source of 8Mhz supplied by STlink, 1. I believe I need to set HSEBYP = 1 f...

Starting STM32 USB project

Posted on September 21, 2016 at 18:14I'm about to start a USB project. New to me with STM. I am using an STM32L476RG on a Nucleo board. (Yes we're cheap). I see LOTS of opportunity for myself. Lots of GOOD and LOTS of UNKNOWN. The LOTS of UNKNOWN c...

Loop in USB_IRQHandler if unplugged

Posted on August 29, 2016 at 22:49Hi, I'm using the USB port in CDC with STM32F072 device. I'm using the F0 STM32Cube package version 1.5.0 At power up, if the device in not USB connected to a host, it goes in infinite loop in the USB_IRQHandler fun...