About YMAIL

YMAIL · 2019-09-03

Hi everyone,I just finished a project with the cubeLRWAN example and it works well. But I have a question. In many tutorial I saw that people put an mspInit() after stop mode but not before. Why do we not initialise the card the same way before and a...

YMAIL · 2019-08-16

Hi !I got a discovery board B-L072cz-LRWAN1. It go to stop mode and when the Alarm trig it wake up and run the program correctly. But when I use the uart for print or anything else, the program stop. Here is my code. It's based on the cube-LRWAN1 exa...

YMAIL · 2019-08-06

I'm sure that I don't go out of the loop cause I ask a led to blink if I exit the loop. Here are my fonctions to enter and exit the stop mode.void stm32l_lowPowerSetup(void){ HW_RTC_SetAlarm( 5000 );//5sec __HAL_RCC_PWR_CLK_ENABLE(); // Enable Power...

YMAIL · 2019-07-12

Hi everyone ! I read in the datasheet that I need the VREFINT_CAL to calculate my real VDDA but I don't find it in the datasheet. In every other model's datasheet you can find the VREFINT_CAL easily but not in the STM32L0 one. Is someone kno...

YMAIL · 2019-07-01

I'm using stm32cubeIDE and I got nothing more than the STM32CubeExpansion_LRWAN_V1.2.1's libraries (stm32l0xx_hal_i2c) to help me. I'm on the i2c1 interface on PB8 and PB9 ports. I think the problem is that I don't know how the flags works.

YMAIL · 2019-08-08

I found the solution. In my board the integrated sx1276 wasn't hardwarely init. Now it works. Thanks for your help. I got new tips now for debbug thanks to you.

YMAIL · 2019-08-07

Ok ! I get stuck in the Error_Handler.Is that an IRQ issue ?

YMAIL · 2019-08-07

I succeded to send the "UU" frame through the uart. So I think it work. I'll now try to implement the Error_Handler. Do I need to put it to the end of the while(1) loop ?

YMAIL · 2019-08-07

Ok I try right now.

YMAIL · 2019-08-07

Ok I try right now.

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Why do we have to put a mspInit() after the stop mode but not before ?

After wake up from stop mode with a RTC Alarm the device stop working when I use the uart link. Do you know why ?

With a B-L072Z-LRWAN1 discovery board. After a stop mode wake up using the RTC, I go back to the while(1) loop of the main fonction. But I'm blocked at the end of the loop. Do someone knows why ?

Where is the VREFINT_CAL for STM32L072z

Hi everyone, I'm trying to acquire a temperature from a MCP9808 sensor with a B-L072Z-LRWAN1. But I got an "onRxTimeout" error everytime I try. Is someone knows why ? Thank you a lot for helping me.

Re: With a B-L072Z-LRWAN1 discovery board. After a stop mode wake up using the RTC, I go back to the while(1) loop of the main fonction. But I'm blocked at the end of the loop. Do someone knows why ?

Re: With a B-L072Z-LRWAN1 discovery board. After a stop mode wake up using the RTC, I go back to the while(1) loop of the main fonction. But I'm blocked at the end of the loop. Do someone knows why ?

Re: With a B-L072Z-LRWAN1 discovery board. After a stop mode wake up using the RTC, I go back to the while(1) loop of the main fonction. But I'm blocked at the end of the loop. Do someone knows why ?

Re: With a B-L072Z-LRWAN1 discovery board. After a stop mode wake up using the RTC, I go back to the while(1) loop of the main fonction. But I'm blocked at the end of the loop. Do someone knows why ?

Re: With a B-L072Z-LRWAN1 discovery board. After a stop mode wake up using the RTC, I go back to the while(1) loop of the main fonction. But I'm blocked at the end of the loop. Do someone knows why ?