About David_

David_ · 2024-05-05

Please advise on Application Notes, Training, examples on Evaluation board, etc. on designing lowest power system using STM32WLE5JC. Cell life for weeks or months. I intend to use STOP2 with RTC and normal-run modes.I found App Note 5568 and 4879.M...

David_ · 2024-04-29

I also found programming by serial line in below using STM32F446. Does STM32 has a 'naming convention' for timer, (Like, Basic, Enhanced, etc....), such that I can 'quickly' see if the timer inside our STM32WLE5JC target MCU will have the 'link/slav...

David_ · 2024-04-24

Appreciate pointer to information reading on reducing effect of GNSS receiver picking up noise from MCU.For battery and small size system, STM32WLE5JC is next to a "patch antenna GNSS module" so MCU noise will naturally seen by GNSS module. How you ...

David_ · 2024-04-23

Appreciate pointer to information. New to these. To power the STM32WL5EJC, we need to make a custom board incorporating the charging and protection circuit since 30mAh Li ion cell does not have build-in protection board.Appreciate circuit diagram, ...

David_ · 2024-04-23

(mildly off topic) To power the STM32WL5EJC, we need to make a custom board incorporating the charging and protection circuit since 30mAh Li ion cell does not have build-in protection board. Appreciate circuit diagram, for or similar to, the popular ...

David_ · 2024-04-29

STNS02 is nice. Will STNS02 work with Li ion cells that come with protection chips (yellow tape in photo)

David_ · 2024-04-29

Many thanks for excellent advises.How about STNS01 which is easier on PCB without BGA? Does it also draw very small current from cell when USB wall charger unplugged?

David_ · 2024-04-26

Many thanks.I got the circuit from web reply. Use TP4056 as charger chip and DW01A as cell protector chip.https://support.envistiamall.com/kb/tp4056-dw01a-microusb-5v-1a-18650-lithium-battery-dual-function-charger-board-with-protection-module/I beli...

David_ · 2024-04-26

Sorry my question not clear. I believe STM32Cube use (unix for ARM) gcc compiler and make file. If one execute gcc compiler on (unix) command prompt CLI, after gcc, there is a string of 'switches' or 'options' to tell the compiler to do something, li...

David_ · 2024-04-26

for (a), STOP2 with RTC mode look promising on STM32WLE5JC. RTC, interrupt can wake the MCU. (b) From replies in this forum, Sequencer is documented in more words in WB (bluetooth) than WL (Lora) (same function, just less word description).

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Seek advises and reading materials on designing lowest power system using STM32WLE5JC

STM32WLE5JC: naming convention for timer?

GNSS receiver picking up natural noise from MCU

Li ion cell charging and protection circuit for powering STM32WLE5JC

Li ion cell charging and protection circuit for STM32WLE5JC

Re: Li ion cell charging and protection circuit for powering STM32WLE5JC

Re: Li ion cell charging and protection circuit for powering STM32WLE5JC

Re: Li ion cell charging and protection circuit for powering STM32WLE5JC

Re: How/where to put option in STM32CubeIDE gcc -D_TIME_BITS=64

Re: Seek information pointer on Power Saving STM32WLE5JC