STM32 MCUs Products

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Resolved! spi clock configuration

Hello, I am using nucleo stm32f429zi. I want to add MCP3304 SPI with my controller. It works properly, but my spi clock is 1.325MHz, which means my channel sample rate will be 1.325MHz/21=63095Hz (sample rate for 4 differential channels). so each ch...

yang hong by Associate III
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RTC Init STM32L152RE

Dear Members,How can I save date and time setting on STM32L152RE ?Everytime I have reset, it's initialized to the value on init code, how can I the value after power off ?I put a battery on VBAT , it doesn't help,Thanks

Resolved! RS485 on STM32

Question regarding an implementation of RS485 on an STM32.The application note (reference guide) refers to 4 bits stored in the USART_CR2 register which can be used as an address comparison to aid with waking only when required.“Address mark detectio...

SPren by Associate II
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  • 2 replies
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Typo in RM - DMA_SxNTR

In the ADC chapter, DMA_SxNTR register is mentioned. There's no such register, it's DMA_SxNDTR.This goes across many RMs - I've checked several 'F4 and 'F7 (using simple text search) and all of them contained it.JW

Resolved! STM32F446, QuadSPI Bank1 CS signal

Hi folks,currently I am working on an communication with a sensor via QuadSpi using the STM32F446 controller. The QuadSpi Bank1 was chosen, but unfortunately the hardware designer did not connect the Chip Select signal (CS) to the pin that correspon...

JSaez by Associate II
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  • 4 replies
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[rtems] when enable idle interrupt uart receive nothing

HI, ALL !i am debugging the stm32F407 uart ON RTEMS, found that the idle interrupt will effect the RXhave cleared the idle flag by pragma but now i can not receive uart data, i don't know what's the erroruint32_t *USART2_SR = (uint32_t *)0x40004400;u...

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