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RTE configuration for using USART on STM32L053 nucleo

Hi everyone,

I am having trouble setting up the RTE in keil 5 for using the UART library(Driver_USART.h).I installed everything as recommended on the keil website (Keil.STM32NUCLEO_BSP.1.4.0).

The problem I have is when I try to select the USART in the RTE. I then click on resolve at the bottom of the window but I'm having the error:

Keil.MDKPro::USBHost
require 2.00:CMSIS Driver:USB Host Install missing component

Do you have any idea how to resolve this ?

If I try to include manually "Driver_USART.h" the compiler says it is unable to find the file.

Thank you in advance for your help.

Maxime

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