About Julien Weber

Julien Weber · 2019-01-31

Dear community, I would like to keep the RTC value when I turn off my device (which use the Murata type ABZ based on STM32L072). I know the Vbat system is not available on STM32L0 but I neet to use this MCU. So I found the application note AN4718 whi...

Julien Weber · 2018-12-11

Dear comunity, I'm having some trouble using the SPI communication protocol between two MCU. The aim is to transfer data via SPI(2) from MCU to a Murata MLM32L07x01 (based on STM32L072).In my program, I'm using also UART2 / ADC / RTC / LoRa communica...

Julien Weber · 2018-11-22

Dear community, I'm trying to use the CN12 SWD connector and the ST-Link/V2 programmer to flash my Disco-L072CZ-BLRWAN1 board.Next, I want to program my own board with a Murata Cmwx1zzabz module but first I want to know how to do it properly with the...

Julien Weber · 2018-04-27

Posted on April 27, 2018 at 14:57Dear Community,I've bought 2 different evaluation boards to know better LoRa with STM32 MCUs. First, I bought the Nucleo board with the Mbed shied from Semtech ( P-NUCLEO-LRWAN1). I've managed to connect it to my lap...

Julien Weber · 2018-12-12

Thank you for notice this solution, you were right, the priority was the problem. I though I fixed this issue before in the code but there are multiple calling of HAL_NVIC_SetPriority and it was a declaration in stm32l0xx_hal_conf.h which cause troub...

Julien Weber · 2018-11-23

You're right, my aim was to have the lowest power consumption so I removed the SB37 (used for NRST) then when I tried to use the STM32 Utility, it didn't work. Now I manage to connect it properly by using the reset button just before the connection. ...

Julien Weber · 2018-05-07

Posted on May 07, 2018 at 17:12Dear Clive One,I had to try with another computer to know if it wasn't the board which was broken but it isn't. Then I re-reinstall all the drivers from the Device Manager for the USB communication. Thank you for your ...

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Design a Vbat system with STM32L0, how to choose components ?

STM32L072/82 trouble with timeout HAL_SPI_Receive() / HAL_getTick()

Disco-L072 programming using the ST-Link programmer doesn't work. Any tips ?

B-L072Z-LRWAN1 is not recognize (COM port)

Re: STM32L072/82 trouble with timeout HAL_SPI_Receive() / HAL_getTick()

Re: Disco-L072 programming using the ST-Link programmer doesn't work. Any tips ?

Re: B-L072Z-LRWAN1 is not recognize (COM port)