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Posted on May 11, 2018 at 20:37Pulse counter 80 mhz input, on 180 MHZ stm32 F479Hello, I just need to keep count of an external clock input, wich comes at about 80 mhz.I dont need to be interrupted or anything, just that this count be accessible at...
Posted on May 11, 2018 at 19:27Hello, I am using NUCLEO F429ZI. I am using TIM9 with 2 channel, channel 1 use for input pulse counter, and channel 2 is output channel to generate a timer based pulse. I try to set TIM9 as master timer using TRGO. My...
Posted on June 29, 2017 at 13:50Hello ST engineers,According to the MCU (STM30F303RCT6) datasheet, the absolute maximum rating of IO's Vin is 4.0V (page 56).In our application, operating voltage is 3.3V (Vdd=Vdda=3.3V), but the input voltage of PA0 ...
Posted on May 11, 2018 at 13:28Hi all, I'm using a STM32F215 MCU with a supercapacitor (like XH414HG-IV01E;SEIKO) connected to Vbat through a 0 Ohm resistor in order to backup RTC registers. I attach an image:Well. If I measure the voltage in VBAT p...
Posted on May 10, 2018 at 19:06Hello, I have a board with stm32f446rc processor and I don't get to connect bootloader with stm32 flashloader.Following below this function used to access the bootloader on chip. I am using USART1 (PA9,PA10) to connec...
Posted on May 09, 2018 at 08:37 Hello! I need to capture signals on inputs with constant frequency for further investigation. I use the following scheme: set timer frequency needed with update DMA request and capture size for DMA, then get data fro...
Posted on May 06, 2018 at 14:15On page 177 the definition of bits 4:0 and 12:8 of RCC_DCKCFGR appear to be incorrect.Should these be PLLI2SDIVQ and PLLSAIDIVQ respectively?
Posted on May 11, 2018 at 11:16Hi, I'm working with the RTC (LSE source) and I'm getting a bad format value, not a wrong value.I call HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN); and HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN); to get the actu...
Posted on May 07, 2018 at 15:37Hi All,Am trying to fix the RAM addresses for new global variables in .data segment. For this, I have divided RAM into sections and by using attribute Am fixing address for newly created global variable. It was looks f...
Posted on May 11, 2018 at 12:55Hello , Which STM32f7 discovery board has on board CAN transceiver ??I checked both these they lack this feature . http://www.st.com/en/evaluation-tools/32f746gdiscovery.html http://www.st.com/en/evaluation-tools/32f76...
