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Forum Posts

Can TIM16 & TIM17 be used in external clock source mode1?

Posted on September 04, 2013 at 18:42Hi, I would like to know if TIM16 and TIM17 can be used in external clock source mode 1. There is any reference in the Reference Manual that it doesn't. So I suppose it is possible. I develop my board and now I w...

Encoder mode - Prescaler or external trigger filter

Posted on August 21, 2014 at 14:46Hi everyone, I've been working on the STM32F4 and I would like to count pulses from some odometer. There are two types of odometer, the ones that output two signal in quadrature and the other that output pulse on ...

maxime2 by Associate
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  • 1 replies
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PID PROBLEM IN CONTROLLER STM 32

Posted on August 21, 2014 at 10:02Hi,i am facing problem for the PiD controller.what parameter i have to use it for the positive & negative nos for calculation purpose.Kindly look following code New_Duty_cycle_buck=(Previous_Duty_cycle_buck + Error_...

deepak by Associate II
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  • 2 replies
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synchronous USART

Posted on August 19, 2014 at 16:38Hi everyone.I need to build a system based at STM32F4xx that use absolute encoder with BiSS protocol (http://www.biss-interface.com). This protocol is based at synchronous RS485. I have HW that convert differential ...

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artuom by Associate II
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STM32L152C6 LSE RTC WakeUp

Posted on August 26, 2013 at 09:49 Hello. I'm trying to use the RTC WakeUp feature to as a countdown timer. I've tried the code from the StdLib examples: void RTC_Config( void ) { NVIC_InitTypeDef NVIC_InitStructure; EXTI_Ini...

kaloyan by Associate III
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  • 4 replies
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STM32F407 TIM2_CH1_ETR

Posted on August 20, 2014 at 20:00Maybe this is explained somewhere in the RM, but because I didn't find the answer with a brief study I will try if the forum can help... So the question is about the alternate function pin named TIM2_CH1_ETR. I want...

ari239955 by Associate II
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  • 3 replies
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PWMInput problem

Posted on August 19, 2014 at 02:26 Hi, I am trying to get the signal from a RC receiver (typical servo's signal) but i am not getting any reads even though the timer interrupt is working. PWMI - PB10 -CH3 Signal: 50 HZ (Duty ...

jdpv by Associate II
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  • 5 replies
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Uart vs Usart on DMA

Posted on August 20, 2014 at 18:25Hi, I'm complete noob with STM32 but starting to get the hang of things. I have problem that got me completly stumped now.  I have simple code that sends string over Uart4 . When using polling or _IT the string is ...