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Forum Posts

HSI never ready on STM32F4 Discovery

Posted on March 24, 2016 at 15:33I'm trying to set up the RTC on the Disco, have read some documentation, and looked at the many examples that are out there. But I fell at the first hurdle:      RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR,ENABLE);    ...

Digital Filtering Problem

Posted on March 23, 2016 at 14:26Hi, I am using STM32f405, and CMSIS dsp library, to filter a signal acquired by ADS1278. The filter used is a 12th order bandpass butterworth IIR filter whose coefficients generated by matlab, and my signal is 2430Hz...

Multiple DMA requests on one OC

Posted on March 24, 2016 at 04:49On the STM32F303 I am attempting to use a timer OC to trigger two DMA requests - one to output a value on GPIO, and the other to update the CCR value on the timer channel to set the next OC trigger point from a list ...

luke2 by Associate II
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stm32L051 Comparator input impedance

Posted on March 23, 2016 at 15:11Hello, I'd like to monitor battery voltage (V~8volts) using comparator and voltage devider with two resistors (1-10M). Coud you please specify analog comparator input impedance, so i can select appropriate resistor v...

mailbox by Associate II
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STM32F4DISCOVERY - IoT Multiple LCDs

Posted on March 24, 2016 at 04:48Hi I had a couple of questions. I'm from the software side of things and hardware is new to me!I am starting a project where I'd like to drive around 5 colour lcd's.It's a bit tricky in that I'd ideally like a mobile...

penny by Associate
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STPM10: Reactive and Total Harmonic Distortion

Posted on March 23, 2016 at 20:34Hi, first of all I'm sorry for the offtopic, but there is no smart meter IC section on the entire forum, which is odd.I've a functional prototype of a Smart Meter running on a STM32-F0/STPM10 platform. Before enterin...

royconejo by Associate II
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Bug in STM32Cube for STM32F417

Posted on February 27, 2014 at 21:56Hi, If you set the PLL speed of the micro to 160MHz (PLL_M=25, PLL_N=320, PLL_P=2) then the generated software correctly contains the line in SystemClock_Config():   HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_L...

rgledhill by Associate II
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