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Seconds in RTC is jumping

Posted on December 11, 2017 at 13:51Hello, I am developing a motor controller using STM32F407, I wrote the code for RTC and uploaded it. I found the time jumps seconds (2 or 3 seconds each time). RTC is crucial in my project as I have to control the...

STM32L476 Adc Injected

Posted on December 12, 2017 at 09:10Hi everyone,I'm using all ADC modules ADC1, ADC2, and ADC3 in my application. ADC1 has 8 channels so the data is being read through DMA.Others which are ADC2 and ADC3 have only 4 channels and I want them to be rea...

How can STM32F446RE connect external SDRAM

Posted on December 04, 2017 at 21:23The data sheet says there is no FMC on STM32F446RE. Is that means there is no chance to connect external RAM with STM32F446RE?#stm-32 #external-ram #stm32f446re

Qiyan Li by Associate
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Resolved! LCD1602 + pcf8574 (I2C) + STM32F0

Posted on October 21, 2017 at 21:04Hello.I have some problem with LCD1602+pcf8574 (I2C) and STM32F0. I experience the following bugs1) When I try to display more than three symbols they seem to be ignored2) If I try to display three symbols, I have ...

Why is the HAL programmed to re-init the RTC when I adjust the time?

Posted on December 12, 2017 at 04:06  RTC->WPR = 0xCA;  RTC->WPR = 0x53;  RTC->CR &= ((uint32_t)~(RTC_CR_TSE | RTC_CR_REFCKON | RTC_CR_BYPSHAD |                                  RTC_CR_ALRBIE | RTC_CR_ALRAIE |  RTC_CR_ALRBE |                        ...

12864B I2C LCD I will ask. (STM32F429)

Posted on November 29, 2017 at 07:51Hi everyoneThat link page 12864 I2C LCD(https://community.st.com/external-link.jspa?url=http%3A%2F%2Fzhongbest.com%2F2017%2F04%2F05%2Fi2c-lcd12864%25E6%2598%25BE%25E7%25A4%25BA%25E5%25B1%258F%25E5%2585%25BC%25E5%2...