About Oliver R.

Oliver R. · 2023-01-12

AN4718 "How to design a V BAT system based onSTM32L0/L1 ..."Case 1b, it is stated, quote:"V DD /V DDA can also be switched to V BACKUP when STM32L0/STM32L1 MCU goes into STOP mode, to allow user to remove main supply in very safe way."End quote.Quest...

Oliver R. · 2022-08-24

Oliver R. · 2020-03-04

Oliver R. · 2017-11-27

Posted on November 27, 2017 at 13:47I can't get a STM32 in 48 - pin Package to work. I need a minimal working reference.I have a STM32F042K6T6, It works fine, no problems, when I am using it on a breakout board:Reset pin voltage goes to VDD level, D...

Oliver R. · 2023-01-15

I see. The main supply might be tied to ground, for instance, if broken, and that would shourtcut the supercap.Thank you very much.

Oliver R. · 2022-08-24

You worte "You are not supposed to ask question in the "ask question" field."Is that a joke ? Read it again.I used the field which is limited to 255 chars.You worte "We here have a very limited access to clairvoyance, i.e. we don't see clearly enough...

Oliver R. · 2022-08-24

Thank you for your reply.Sorry for the lack of details, ST limits the number of characters in the "ask question" field !The RTC is supposed to run, which means, every second increase the second-value etc.I test it with a firmware in my target applica...

Oliver R. · 2020-03-05

Again thanks for the quick response and paying attention to this.Sorry my mistake, I mean: "set Boot0 High".I found what was going on by debugging and then stepping over the__HAL_AFIO_REMAP_SWJ_DISABLE();instruction, where the debugger said good bye....

Oliver R. · 2020-03-05

OK, I found:I need to set the GPIO's of my target uc in cube IDE (the cube MX part) to the debugger pins.Then the__HAL_AFIO_REMAP_SWJ_DISABLE();is replaced by__HAL_AFIO_REMAP_SWJ_ENABLE();The deubgger still does not work in Cube IDE, but it works on ...

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What is the purpose of the PMOS switch for VBAT-SYSTEM STM32L0x1 see AN4718

BUG: RTC only works if debug breakpoint is set. I use STM32L071K8 and Cube IDE and Segger JLink. No matter if LSE or LSI is used, same problem.

How to control setting the option bytes using cube ide ?

Need minimalistic example to get STM32 in 48 - pin Package to work.

Re: What is the purpose of the PMOS switch for VBAT-SYSTEM STM32L0x1 see AN4718

Re: BUG: RTC only works if debug breakpoint is set. I use STM32L071K8 and Cube IDE and Segger JLink. No matter if LSE or LSI is used, same problem.

Re: BUG: RTC only works if debug breakpoint is set. I use STM32L071K8 and Cube IDE and Segger JLink. No matter if LSE or LSI is used, same problem.

Re: How to control setting the option bytes using cube ide ?

Re: How to control setting the option bytes using cube ide ?