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How can I read data thru a GPIO configuread as EXTI?

Posted on June 13, 2017 at 12:32I'm trying to read an external ADC output.The data are provided thru a DRDY pin.When the DRDY falls, it generates an interruption in my STM32L1 (falling edge). Then, I must read the DRDY level eevery rising edge of a ...

amelendez by Associate III
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STM32F7 Disco ADC issue

Posted on June 13, 2017 at 08:09Hello all,I am trying to read the ADC value from PA0 pin on a STM32F7 Disco board but without any success.The issue is that the ADC reading is acting as the pin is floatingI suspect that the initialization code is not...

Resolved! unwanted stop mode wakeup (STM32L052K8)

Posted on June 09, 2017 at 16:29Hello, I am running into a problem while trying to put MCU into a STOP mode. I have tried to comment out all of the 'unnecessary' code but It does not work even if I leave just this in the source:HAL_Init();SystemCloc...

Stm32F7: Wrong default value for FLASH_OPTCR1

Posted on February 27, 2017 at 11:28Hello,Rm431/385 and 410 document the value 0xff7f0080 as default value for FLASH_OPTCR1. The high halfword does not make sense and instrction on a new device shows a value of 0x00400080  that does make sense.Pleas...

HAL USB odd/even issue for OUT endpoints

Posted on January 05, 2016 at 13:50When preparing to receive the data on OUT isochronous endpoint, the HAL sets up the even/odd flag once when you call the PrepareReceive for that specific frame that is active at that moment.However the data may com...

Resolved! How to Set SYSCLK up to 72Mhz

Posted on June 12, 2017 at 17:51HiI created new STM32F103C8 project. I'm using STD Periph library. STM32F103 works with 8Mhz HSE oscillator. But I did not get 72 Mhz. I'm measuirng PLLCLK frequency with MCO.  RCC_MCOConfig(RCC_MCO_PLLCLK_Div2); I wa...

stm32 transmit radio message 433 mhz

Posted on June 12, 2017 at 15:05I have on radio transmitter and one radio receiver like on the picture. What I am trying to do. I send data through USART2 PA2 (pin2) on data transmitter. I connected usb-uart to PA2 (pin2), and looked in terminal wha...

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anton23 by Associate II
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