STM32 MCUs Products

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Resolved! Using STM32 FLASH memory

I am learning on using the STM32L431CC FLASH memory to store data after the microcontroller loses power. From compiling through Keil, I get:Program Size: Code=34316 RO-data=1228 RW-data=364 ZI-data=1908From the above, Is it correct that only 35Kbytes...

RrW1 by Associate III
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  • 9 replies
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Write to STM32 internal flash fails

On my stm32g0 mcu there is no eeprom. So, I am using internal flash to save one byte user data to retain it between power cycles.I am doing it the following way,Add Data section in memory in the linker scriptMEMORY { ......  DATA (xrw) : ORIGIN =...

AR_26 by Associate II
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  • 9 replies
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STM32L412: No decoupling caps for VDDA if not used?

Hi there,I'm designing an application with an STM32L412K8 and I don't use ADC, OPAMP or COMP. The datasheet (DS12469) says:VDDA shall be 0 to 3.6 V if ADC, OPAMP, COMP is not used (general operating conditions table 21).When the functions supplied by...

AN..1 by Associate II
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Resolved! How to calculate frequency of input signal?

Hi,We are using STM32F746ZET6.we have to calculate input frequency on 5 pins from 40khz to 0.01hz.currently we are using 50 micro seconds timer and at every timer interrupt we are processing frequency calculation based on the polling of the pin stat...

RRajb.1 by Associate II
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  • 5 replies
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Resolved! List of MCUs with discreet VBAT pins?

How do I obtain one? Cube isn't helpful -- this isn't a filter parameter. I need an MCU with built-in backup battery domain for the RTC. I don't want to build anything external and the design must not be capable of powering up the core from the batte...

STM32H743 & ISSI IS42S32800G Self-Refresh Mode Problem

After the firmware is up and running, I am trying to put the SDRAM in self-refresh mode. We are using FreeRTOS. In order to put SDRAM into self-refresh mode, I write 0x4480D to FMC_SDCMR register. I am using IAR debugger, and I execute the statement...

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BGeor.1 by Associate II
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  • 0 replies
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Resolved! STM32L4 HardFault_Handler?

Hello, I am very new to STM32 MCUs and hoping someone can explain to me the HardFault_Handler and possible reasons why my code is jumping to here? If there is a good resource which discusses this, that would also be very useful but I haven't been abl...

MCrew.1 by Associate III
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  • 6 replies
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