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Sbagh.2
Visitor II
March 10, 2021
Solved

STM32L151xE and drive lcd

  • March 10, 2021
  • 2 replies
  • 1017 views

I have used STM32L151xE in a board and drove a glass LCD with it and it works without any problem. But in its datasheet, in two sections, it is mentioned that, STM32L151xE is not support LCD and just STM32L152xE can support it.

Is there any explanation for this?

I am sure that the IC is original.

This topic has been closed for replies.
Best answer by Imen.D

Hi @Sbagh.2​ ,

 The STM32L151xxx devices don’t support the LCD controller.

This is valid for all STM32L1 devices: LCD is supported only in STM32L152xxx.

 For example:

0693W000008wYc7QAE.jpg 

In fact, the LCD controller is physically present also in STM32L151xxx devices, but for marketing reasons we differentiate the STM32L1 family to 2 groups: with LCD (STM32L152) and without LCD.

If you are using the LCD on STM32L151xxx devices, then ST do not guarantee the functionality of the LCD controller.

Please mark my answer as best by clicking on the "Select as Best" button if it fully answered your question.

Imen

2 replies

Technical Moderator
March 10, 2021

Hello @Sbagh.2​,

Welcome to the STM32 Community :)

I am checking this and I will come back to you with update.

Imen

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Thanks
Imen.DBest answer
Technical Moderator
March 10, 2021

Hi @Sbagh.2​ ,

 The STM32L151xxx devices don’t support the LCD controller.

This is valid for all STM32L1 devices: LCD is supported only in STM32L152xxx.

 For example:

0693W000008wYc7QAE.jpg 

In fact, the LCD controller is physically present also in STM32L151xxx devices, but for marketing reasons we differentiate the STM32L1 family to 2 groups: with LCD (STM32L152) and without LCD.

If you are using the LCD on STM32L151xxx devices, then ST do not guarantee the functionality of the LCD controller.

Please mark my answer as best by clicking on the "Select as Best" button if it fully answered your question.

Imen

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Thanks