About AbhijithKannan

AbhijithKannan · 2024-10-06

I have an STM32F103C8T6 Blue Pill board, and I'm trying to get the RTC to function correctly when Vdd is removed. However, when I disconnect Vdd, the RTC doesn't operate as expected. Sometimes, when Vdd is supplied, the RTC starts counting from the t...

AbhijithKannan · 2024-10-16

But still I am getting that 2.2V across Vdd when only Vbat is supplied

AbhijithKannan · 2024-10-16

I've attached the IOC file. The RTC is now working! I regenerated the code from CubeMX and haven’t made any changes since I last opened the project. I occasionally notice the RTC resetting, but I believe it's due to a loose jumper wire when I make ad...

AbhijithKannan · 2024-10-15

Hi @Techn I’m supplying power to both Vdd and Vbatt via jumper wires. To cut off power to Vdd, I simply disconnect all four wires from the ST-Link V2 programmer. This leaves Vbatt powered solely by the Nucleo board. I checked for continuity between V...

AbhijithKannan · 2024-10-14

Hi @Imen.D I believe I have configured the LSE correctly. I've attached screenshots of my CubeMX configurations for your review. Since I don't have a coin cell available, I'm currently supplying Vbat with 3.2V from another Nucleo board, while the S...

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STM32F103C8T6 Blue Pill : RTC doesn't run when VBat is only supplied

Re: STM32F103C8T6 Blue Pill : RTC doesn't run when VBat is only supplied

Re: STM32F103C8T6 Blue Pill : RTC doesn't run when VBat is only supplied

Re: STM32F103C8T6 Blue Pill : RTC doesn't run when VBat is only supplied

Re: STM32F103C8T6 Blue Pill : RTC doesn't run when VBat is only supplied