STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...
Hi there.I'm using a STM32F071 series.I want to use a RTC with power backup.So, I added a super-cap on VBAT.when I power off and on again, VDD becames a saw blade.... what???After I discharged the super-capacitor and power on again, VDD is good.I t...
Setup: 48MHz CPU clock, ADC clock = CPU/4. For various sample times, I get internal reference measurements of: 1.5 - 1925, 7.5 - 1760, 13.5 - 1420, all other sample times give 1550. I thought sample times were to cope with high impedance sources. ...
Hi,I am using the STM32L4 ADC in differential mode (PC0 and PC1), to capture the dual end output of a tuner which provide a 600 to 800KHz signal. The tuner maximum output is 2.0V PP, and the STM32L4 differential input is rated for 6.6V PP (-3.3V to +...
hi everyone want to use interrupt in main.c i am using extern "C" for this purpose but its couldn't compile/* USER CODE BEGIN 4 */ extern "C" void TIM2_IRQHandler(void) { // Handle update interrupts (update interrupt flag is set) if (TIM2->SR & TIM_S...
Hi everyone,I'm trying to perform some ADC conversions triggered on a timer rising edge, this timer can be up to 1MHz.I set up everything in cubeMX and can perform those conversions, but the delay is too high for my application.My current problem is ...
battery backup ram works after power on. stops working ( get hard fault ) upon access to variable in battery backup ram. battery backup ram works when developement system dissconnected. sporadicaly stops working when ijet or segger connected to nu...
Hello everyone,I am developing a project with STM32F750N8 using Keil IDE, JLink Edu debugger.Also using W25Q128 QSPI Flash. I want to load my hex to the qspi flash and run the software from there (with memory mapped mode).I build a BSP Library that c...
Hi everyone.I have edited my original question, it seems I haven't the permissions to delete. I found the original issue to de data alignment.Thanks
here's my initialization code for spi and rc522:/* USER CODE BEGIN SPI1_Init 1 */ LL_SPI_SetRxFIFOThreshold(SPI1,LL_SPI_RX_FIFO_TH_QUARTER); /* USER CODE END SPI1_Init 1 */ /* SPI1 parameter configuration*/ SPI_InitStruct.TransferDirection = LL_SPI_F...
