ext/hal: stm32cube: Update STM32L4 README file

To comply with Zephyr Contributing guidelines regarding
ext/ components, update README for STM32L4 series

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2018-03-07 16:26:08 +01:00 committed by Kumar Gala
commit 053df3bd30

View file

@ -1,17 +1,49 @@
The current version supported in Zephyr for STM32L4 Cube is V1.10.0
STM32CubeL4
###########
Origin:
ST Microelectronics
http://www.st.com/en/embedded-software/stm32cubel4.html
Status:
version 1.10.0
Purpose:
ST Microelectronics official MCU package for STM32L4 series.
Description:
This package is an extract of official STM32CubeL4 package written by ST Microelectronics.
It is composed of STM32Cube hardware abstraction layer (HAL) and low layer (LL) plus a set
of CMSIS headers files, one for each SoC in STM32L4 series.
Dependencies:
None.
URL:
http://www.st.com/en/embedded-software/stm32cubel4.html
commit:
version 1.10.0
Maintained-by:
External
License:
BSD-3-Clause
License Link:
http://www.st.com/resource/en/license_agreement/dm00218346.pdf
Patch List:
===========
*Current implementation of LL_SPI_TransmitData16 on F3/F7/L4 family
generates following warning:
"warning: dereferencing type-punned pointer will break strict-aliasing
rules [-Wstrict-aliasing]"
Besides being forbidden by rule, this cast is not needed, as register is
16 bits wide. Modification has been tested on L4 SoC.
stm32yyxx_ll_spi.h being included in soc.h file, warning is generated
at each compiled object, this commit allows a clean build.
Impacted files:
drivers/include/stm32l4xx_ll_spi.h
ST Bug tracker ID: 13359
*Current implementation of LL_SPI_TransmitData16 on F3/F7/L4 family
generates following warning:
"warning: dereferencing type-punned pointer will break strict-aliasing
rules [-Wstrict-aliasing]"
Besides being forbidden by rule, this cast is not needed, as register is
16 bits wide. Modification has been tested on L4 SoC.
stm32yyxx_ll_spi.h being included in soc.h file, warning is generated
at each compiled object, this commit allows a clean build.
Impacted files:
drivers/include/stm32l4xx_ll_spi.h
ST Bug tracker ID: 13359