STM32 MCUs Products

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Generating a simple square signal

Posted on August 31, 2012 at 13:33 Hi at all, I am using the STM32F4 i am trying to generate a simple square signal without using an interrupt (about 2MHz). Therfore i tried using Timer 3 in OC-Toggle mode. See below my initialis...

detect sram size at run time

Posted on August 30, 2012 at 14:12Hi, is there a way to detect the SRAM size of a stm32 (F1, connectivity line) at run time? I found a register with the flash size and a so called device identifier (only tells you e.g. connectivity line), but not th...

bart2399 by Associate II
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rl-usb with audio device class

Posted on August 31, 2012 at 10:07Hello every body,I try to implement on my stm32f4-discovery a program with usb audio class to make windows use the board as speaker.I worked on keil 4.54 and rl-usb under windows seven x64.The problem is the followi...

Does Keil UV4 provide step-by-step debug mode?

Posted on August 31, 2012 at 05:51Does Keil UV4 provide step-by-step debug mode? If so, how to activate it? By ''step-by-step'' I mean execute my codes line by line, and I get to observe various registers and ports etc. However the ''run'' button ex...

Accurate hardware independent Dealy function

Posted on August 30, 2012 at 07:36Hi,I need an accurate hardware independent Dealy function for stm32l152rbt6 controller, the delay should be completely relay on the software. #silly-silly-silly-questions #!rocketscience #sloppy-thinking #hardwar...

Syncing PWM/Timer's on STM32f205rb

Posted on August 30, 2012 at 20:28Hi Please help me with synching 4 timersI need 4 PWM from 4 different timers to sync it's output so that i get this result: ________________ ________________ _| |____________| |___________ TIM9_CH1 ________________...

mb2 by Associate II
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stm32 programmer

Posted on August 25, 2012 at 17:16hi , i want to build a stm32 jtag programmer . i find lpt  jtag circuit  . but i can't find software. why this forum-> *bad interface *not friendly interface #credit-where-it's-due #lmgtfy #no-such-thing-as-a-fr...

jbl_raw by Associate II
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SPI interrupt documentation

Posted on August 30, 2012 at 13:56Hi,Could someone please point me to some documentation regarding SPI interrupts and what they actually mean from a hardware perspective?I am currently having an issue with SPI overrun. From the ''SPI_I2S_IT_OVR' fla...

gavin2 by Associate II
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stm32f407 DIS with external ADC(MCP3201)

Posted on August 24, 2012 at 17:25Hi,   i try to read the value from external adc by stm32f407.but i could not get the result from adc.MSP3201 is connected STM32f407 by SPI.MCP 3201does not have MOSI pin.the program runs good at SendChar('b'); .the ...

vinothraj by Associate II
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