About Strooom

Strooom · 2023-06-05

I am developing an application on the Seeed Lora-E5 module, which contains an STM32WLE5.Currently I am programming the device via the SWD interface, but for future firmware updates I want to use the UART, (this UART is available externally through a ...

Strooom · 2023-05-30

I use STM32CubeIde in a fairly standard way, only that I use C++ source on top of the C HAL code. When inspecting the build with Build Analyzer, I noticed A LOT of code which I think I never included.. (never sure what all the HAL files do..) for exa...

Strooom · 2023-05-11

I am doing a LoRaWAN project on the STM32WLE and so I want to power it down in Stop2 mode to lower the power consumption.Using the following code, this works fine : UTILS_ENTER_CRITICAL_SECTION(); ...

Strooom · 2023-04-11

I'm trying to realize some simple timings/delays in my application using the LPTIM, and although most of it is working, I don't understand it 100%.So the LPTIM is set up to run on the LSE clock (32768 Hz) (with a prescaler of 16, so the LPTIM is runn...

Strooom · 2023-03-30

While reverse engineering a demo application from ST / Seeed ( Seeed-Studio/LoRaWan-E5-Node at qian (github.com)), I started monitoring all commands and register access from the MCU to the embedded SX126.I see there are writes to register:WR [08E2]:0...

Strooom · 2023-06-07

I want to help but your question is not clear…Before going into stop2, set the IOs to analog, which has lowest power consumption.After wakeup, re-initialize the I2C IOs by calling the related MSP init function.

Strooom · 2023-06-07

As I got no immediate response, I decided to try it out, and it actually works.Here is some demo code :int main(void) { HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); MX_USART2_UART_Init(); logging::detectDebugProbe(); logging::snprint...

Strooom · 2023-06-06

With RTC wakeup, I don’t think it’s possible to sleep for 2 weeks, but you can sleep for eg. 30 seconds, increment a counter and go back to sleep. Count to 40320 and you have 2 weeks.

Strooom · 2023-06-06

Good to know that it works.In LoRaWAN you would encrypt the msg and no longer need the cleartext, so it’s certainly a useful idea. Thanks.

Strooom · 2023-06-06

There is an STM32 CubeIDE project available from Seeed, which has the Board Support Package set for the Lora-E5. (check their Wiki for the link to github)I managed to setup projects in STM32Cube IDE for all my experiments, so if you have a particular...

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