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Forum Posts

Fluctuations in ADC regular simultaneous mode

Posted on June 11, 2014 at 15:08Hi Everyone,We are developing a power monitor system. In that we are using ADC Peripheral in Regular Simlutaneous mode. we are taking 256 samples per cycle of 800 Hz. and we are trying to capturing signal from ADC1's ...

rags by Associate II
  • 2771 Views
  • 14 replies
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Using all channels of Timer 3

Posted on June 23, 2014 at 16:22 I'd like to use all channels of Timer 3 to generate different clocks and timers. Channel 1- 10ms timer interrupt Channel 2- 250us timer interrupt Channel 3- 50kHz clock (50%) on PB0 Channel 4- 256...

daniel2 by Associate II
  • 4106 Views
  • 5 replies
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Problem with custom usb bootloader

Posted on June 23, 2014 at 01:20Hi all,I´m trying to develop my owm custom usb bootloader and firmware. As most of the people who tried before I am having problems because I´m ussing again the usb peripheral in the firmware. So I tried disconnecting...

anrusal by Associate II
  • 1846 Views
  • 9 replies
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I2C Reading state machine

Posted on April 11, 2013 at 23:50Hi,I am working on STM10C eval board. I am trying to read X and Y datas from the touchscreen using a state machine inside the I2C_IRQ_Handler. The start byte is generated inside the EXTI interrupt once a touch is det...

GSM Modem Interference

Posted on June 23, 2014 at 10:13A GSM modem is in proximity to the uC. When the current bursts of the modem occur I get false logical 1 on my port pins. They are configured as analog inputs. I am using the STM32L100-DISCO board. I was wondering if t...

abuelmagd by Associate II
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  • 5 replies
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Accurate RTC using HSI

Posted on June 23, 2014 at 21:14I'm using the SMT32F030 with 48MHz internal clock. I've configured the RTC and noticed it is about 8% fast. Is there a way to make this more accurate through calibration of some sort? Will that have to be done from pa...

daniel2 by Associate II
  • 504 Views
  • 1 replies
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STM32Cube stack alignment problem?

Posted on June 23, 2014 at 14:34 STM32Cube ld scripts set _estack to the last location of RAM like this: /* Highest address of the user mode stack */ _estack = 0x20017FFF; /* end of RAM */ I had several problems with code that u...

whg03 by Associate II
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  • 4 replies
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stm32f429-disco and beginners question

Posted on June 20, 2014 at 15:26 Hi, as a beginner I am starting freshly with stm32 programming on a stm32f429-disco board using eclipse with the gnu-arm-plugin and the gnu-arm-eabi toolchain in linux (toolchain is working - the simple LED-b...