Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on March 29, 2013 at 13:03Hi, i'm a new user of this board and i have a (maybe trivial) question. Searching on the web i found that there is a ''ITM_SendChar()'' instruction that could be very useful for me, but i can not view its result on m...
Posted on March 29, 2013 at 09:23 Hello, I have been trying to use multiple usarts with receive on interrupts. Some part of the communication takes place between a PC Com and STM, while some communications is taking place with STM to another STM...
Posted on March 28, 2013 at 21:34 hello dear forum, I write 2048 to STM32F4 DAC, it gives 0.83V instead of 1.65V if I write 4095 it gives 1.65 V instead of 3.3V the output of DAC is input to an OPAPM amplifier I mean it i...
Posted on March 28, 2013 at 11:12Hi, My application requires a bootloader that loads an application into a FLASH device. I have created two different applications: bootloader. start 0x08000000 A FLASH application. start 0x08001000 if i ...
Posted on March 26, 2013 at 17:15The Reference Manual states ''The internal PLL can be clocked by the HSI RC or HSE crystal.''Is it possible to clock the PLL by feeding an external reference into OSC_IN?If there is no signal present at OSC_IN will t...
Posted on March 28, 2013 at 12:14Hello, sorry for maybe stupid question, but I can't understand - how to make the frequency divider using STM32F4's timers? I mean how to divede the frequency of the external signal and output it from CPU? Tnanks. ...
Posted on March 28, 2013 at 10:12Hi, in the file System_ST32F4xx.c of the ST4Discovery examples, I always find the following 2 lines for the clock configuration (SysClk 168MHz): /* HCLK = SYSCLK / 1*/ RCC->CFGR |= RCC_CFGR_HPRE_DIV1; ...
Posted on March 19, 2013 at 14:47Hello.I found the USB HID Demonstrator application. I want to test it with my STM32F4 Discovery board. But i don't have any code in the microcontroller to communicate with this application. Can anyone help me to find...
Posted on March 27, 2013 at 23:32Hello all,I will apreciate any help that can give me some light to understand what is happening.The firmware has a loader, data flash and an application.ROM memory mapping:* Loader 0x0000h - 0x3FFFh* EEPROM DATA 0x...
Posted on March 28, 2013 at 07:12Hi, I have to know whether how much amount of program memory will need to debug a Embedded linux in controller as well as needed RAM size to load the linux application. Am new to this platform, So could you plea...
