STM32 MCUs Embedded software

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Forum Posts

False HAL_Delay computation when uwTick overflows ?

Posted on April 11, 2015 at 09:18Hi, uwTick is an uint32_t incremented each Systick interrupt 1ms. uwTick is used to execute HAL_Delay function. So i calculated, uwTick will overflow each 49 days almost. I know its a really rare event but if a syste...

florent by Associate II
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STM32F051 Vector Reclocation

Posted on April 10, 2015 at 17:25Hello, I am planning a both a secondary boot loader and the need for my main application to handle interrupts from RAM during Writing/ Erasing flash. I think both of these will benefit from relocating the vectors t...

stst9189 by Associate II
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USB Mass Storage vs Internal Filesystem

Posted on April 10, 2015 at 13:56I'm developing code for custom STM32F103-based board. I'm using code from USB Mass Storage demo from STM32_USB-FS-Device_Driver library 4.0.0 (yes, it may look pretty old, but it works), storage media is SPI flash ch...

STM32 I2C HAL read out data from HMC5883L

Posted on April 06, 2015 at 11:56Hi all, this sounds so simple but I did spend too many hours trying to just read data out from my  HMC5883L 3-axis Magnetometer. I admitt I just switched from 8bit to the 32bit world, so bare with me... The ''new'' H...

STM32F4 discovery uart problem

Posted on April 02, 2015 at 11:31Hello there, For many hours now I am trying to send couple bytes using uart on stm32f4 board. I tried Usart1 and Uart4 but it doesnt send anything. I have a scope attached to TX pin and there is nothing. Here is my c...

Digital Audio Effects - Wave file issue

Posted on August 12, 2013 at 04:06dear all. I hope this finds you well. I am trying to implement digital audio effects on a development board featuring a STM32F407ZG processor. I have never used it before but I managed to build the driver for the au...

software Jump to Bootloader F429Z

Posted on March 31, 2015 at 17:57Hi I am trying to jump to the bootloader  on F429z  with using B0 B1 pinsusing the code belowbut when i send 0x7f on uart1 (from my remote client app) I get no response back at allI have confirmed Buad rate 57600 8e1...

brett23 by Associate II
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Bootloader

Posted on April 02, 2015 at 19:01HiFirst of all sorry if the question is very simple and ii have not enough information on Bootloader and its memory difficulties.I want to program my stm32f4 using usart without changing any boot pin. Can any one Hel...