(nuttx) branch master updated: arm/stm32h7x3x_rcc.c: Add External Power Supply option to stm32h7x3x targets

[xiaoxiang]

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xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx.git


The following commit(s) were added to refs/heads/master by this push:
     new f05c85e622 arm/stm32h7x3x_rcc.c: Add External Power Supply option to 
stm32h7x3x targets
f05c85e622 is described below

commit f05c85e6228a7c6f2471da33e09fa1e8e0dc07e9
Author: Alexis Guijarro <toto...@gmail.com>
AuthorDate: Thu Jul 25 02:18:18 2024 +0000

    arm/stm32h7x3x_rcc.c: Add External Power Supply option to stm32h7x3x targets
---
 arch/arm/src/stm32h7/Kconfig           | 6 ++++++
 arch/arm/src/stm32h7/stm32h7x3xx_rcc.c | 8 +++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm/src/stm32h7/Kconfig b/arch/arm/src/stm32h7/Kconfig
index 91c66280aa..15ba5312c5 100644
--- a/arch/arm/src/stm32h7/Kconfig
+++ b/arch/arm/src/stm32h7/Kconfig
@@ -293,6 +293,12 @@ config STM32H7_PWR_DIRECT_SMPS_SUPPLY
        depends on STM32H7_HAVE_SMPS
        default n
 
+config STM32H7_PWR_EXTERNAL_SOURCE_SUPPLY
+       bool "Use external source as power supply"
+       default n
+       ---help---
+               Select this option for using an external power supply connected 
directly to the VCAP pin.
+
 choice
        prompt "STM32 H7 Power Supply Selection"
        default STM32H7_PWR_DEFAULT_SUPPLY
diff --git a/arch/arm/src/stm32h7/stm32h7x3xx_rcc.c 
b/arch/arm/src/stm32h7/stm32h7x3xx_rcc.c
index da7af1f59c..51031027ae 100644
--- a/arch/arm/src/stm32h7/stm32h7x3xx_rcc.c
+++ b/arch/arm/src/stm32h7/stm32h7x3xx_rcc.c
@@ -148,12 +148,18 @@
 
 #  if defined(CONFIG_STM32H7_PWR_DIRECT_SMPS_SUPPLY)
 #    define STM32_PWR_CR3_SELECTION STM32_PWR_CR3_SDEN
+#  elif defined(CONFIG_STM32H7_PWR_EXTERNAL_SOURCE_SUPPLY)
+#    define STM32_PWR_CR3_SELECTION STM32_PWR_CR3_BYPASS
 #  else
 #    define STM32_PWR_CR3_SELECTION STM32_PWR_CR3_LDOEN
 #  endif
 #else
 #  define STM32_PWR_CR3_MASK  0xffffffff
-#  define STM32_PWR_CR3_SELECTION (STM32_PWR_CR3_LDOEN | STM32_PWR_CR3_SCUEN)
+#  if defined(CONFIG_STM32H7_PWR_EXTERNAL_SOURCE_SUPPLY)
+#    define STM32_PWR_CR3_SELECTION (STM32_PWR_CR3_BYPASS | 
STM32_PWR_CR3_SCUEN)
+#  else
+#    define STM32_PWR_CR3_SELECTION (STM32_PWR_CR3_LDOEN | STM32_PWR_CR3_SCUEN)
+#  endif
 
 #endif