The new STM32H7R/S lines are built on the success of the STM32H7 series, offering even higher performance and security at a lower cost. The STM32H7R/S is a bootflash-based MCU powered by a Cortex®-M7 core running up to 600 MHz, with 64 KB of user fla...
Posted on May 12, 2018 at 17:36I'm trying to generate a square wave signal using the DAC channel 2 (PA5) with a 1.627 ms period and then measuring that by catching the rising edge trigger in an EXTI4 interrupt on the PF4 pin. The problem is that I h...
Posted on May 12, 2018 at 15:32I just used RTC interrupt to measure msec timing. and I got some problem.when i write naive code in interrupt there is no problem. timing is correct and no delay. the sample code is belowvoid RTC_IRQHandler(void){ ...
Posted on May 12, 2018 at 13:57Hello everyone,I have used the following codes to (erase and then ) write to the flash in STM32F103RCT6, the problem is every time i call this function it writes every page only the first time. meaning when called for ...
Posted on May 12, 2018 at 07:00X-CUBE-SPN4brushed motors,SPINFamily Evaluation Tool 3.2at 28VDC.controlling demo from pc on virtual com port with the demo's gui.what is com serial protocol so i can drive it over the usb with my own gui?Source please...
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...