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Resolved! Using RTC on STM32l4 as a fail safe monthly wake up?

Wondering if the STM32l4 RTC could be used to wake the processor from standby mode after 1 month.Powered by the LSI, would the time drift beyond usability? Ie. It does not matter if the device wakes up 30 days or 31 days later. Just as long as its in...

Resolved! STACK and HEAP size

Hello everyone In Keil Projects we are able to change Stack_Size and Heap_Size in "startup_stm32f746xx.s" file like this :Stack_Size      EQU    0x400Heap_Size     EQU    0x200BUT in IAR projects there isn't such code line in the startup file related...

MSm by Associate II
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  • 2 replies
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Weird triggering of SPI interruption on STM32H743

I'm facing a weird situation. I'm using SPI simplex receive-only mode on a Slave STM32H743. It has been working fine for a while. Until now I was enabling only the RXP interruption. The SPI1 interrupt was triggered as expected.Now I enabled also EOTI...

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Gpeti by Senior II
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Resolved! Frequency range of LSI for STM32L072CB

Hello,according to the datasheet of STM32L072CB there is a margin of controllers which have at 26kHz@Xx°C or 56kHz@Xx°C (first row of table)?So in total there is a production margin (26kHz to 56kHz) and additionally a temperature drift during run tim...

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STM32H743ZI CAN not working

I am trying to use the STM32H743I-EVAL FDCAN_Com_IT example code to run CAN on STM32H743ZIT6. I am trying to transmit at regular intervals. When I look the signals on a scope, the TXD goes low for just a bit interval and then remains high. Here is m...