rtc year
rtc year is uint8_t, does anybody know how to identify year less than 2000 or more than 2000?Regards,
Forum Posts
stm32L4: wakeup pin polarity confusing.
Hello. I try to calculate some pulses by wakeups from shutdown mode. I have 2 pins which areWKUP1, WKUP4. They are configured to wake up by rising edge. But sometimes when only 1 of them is rising, I receive 2 notifications, from both pins.The proble...
DBGMCU HRTIM_STOP does not disable PWM outputs?
I'm working on a project for a battery charger and for safety purposes I want the complementary outputs of the HRTIM to be disabled when the core is halted. On the STM32F334, setting the HRTIM_STOP bit in the DBGMCU register resulted in both the HRTI...
BDMA 50ns offset between Clock (LPTIM2 PWM) and 16bit GPIOE.
Hi all,I working on parallel synchronous transmission. I am using LPTIM2 as clock (PWM) and GPIOE as data bus. It is working with BDMA but here is 50ns offset between Clock and data no matter what frequency I setup. Please see pictures below 84kHz a...
[i2C] [STM32F303RE] [EC25] Communication issues on i2c between two controllers
Hello, We have been trying to read 12 bytes of data on EC25 from stm32 controller.On the first run, data is transmitted by stm32 in slave trasmit mode and EC25 is reading the data correctly. We are able to capture the read log on EC25[Master read mod...
How to print LOGS or PRINT statements in STM32 using Keil IDE or on any other console ?
We are using STM32F4079I-EVAL board and are new to it. We have checked the examples and demo apps in --> STM32Cube_FW_F4_V1.24.0 But unable to find anything that could help us to print logs.
how count of pulse on gpio in stm32l4 at lprun and wake up?
I use 2 board for generate pulse and count pulse.I generate pulses with 4Hz frequency by first board and print number of each pulse also when I press button pulse production stops and then after 20ms products a another pulse(I things micro in second ...
IWDG is not working
Hi,In stm32f051, iwdg is not working, I think.After enable iwdg, encounter the while(1); loop , reset is not issued.NRST pin is connected to RC reset circuit.BRPaul
Can ST please review the requirement of I2SDIV > 2 in SPI/I2S of 'F2/'F4?
In SPIx_I2SPR, I2SDIV=1 is probably fine as long as ODD is kept 0.https://community.st.com/s/question/0D50X00009XkYmHSAV/f2f4-i2s-extclockThis constraint probably unnecessary puts pressure onto using higher than necessary I2S clock, and restricts cer...
For the single-port DMA, please document better EN-related behaviour
In the single-port DMA, CCR.EN when set, it locks most of the registers, including all other fields of the CCR register itself.Moreover, EN is not autocleared when single-transfer is complete. This is not documented clearly anywhere.These two things ...
