how to develop embedded database system by using stm32
Posted on May 10, 2018 at 11:51How to design Embedded database system by using stm32 ?
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STM32F303VC DAC signal generation and period measure using EXTI interrupt
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...
RTC Interrupt not accurate when place a function in
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){ ...
problem writing to flash for the second time
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 ...
SPINFamily Evaluation Tool 3.2: serial protocol please?
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...
Pulse counter 80 MHZ.
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...
TIMER TRGO
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...
Resolved! IO limit voltage of STM32F303RCT6
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 ...
STM32F215 VBAT pin
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...
Problem! flash loader doesn't work after I jump to bootloader in stm32f446rc
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...
