michaelh/zephyr
1
0
Fork 0
Code Releases Activity

samples: boards: stm32: serial_wakeup: Fix nucloe_wb55rg configuration

Browse source 
On STM32WB55 series, wakeup in stop mode is not supported.
Disable this state in order to support this sample.

Add comments to other sections of the configuration.

Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
This commit is contained in:
Erwan Gouriou 2023-11-16 12:21:20 +01:00 • committed by Carles Cufí
commit b4fcbc4eb6
1 changed files with 18 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

20
samples/boards/stm32/power_mgmt/serial_wakeup/boards/nucleo_wb55rg.overlay
View file

@ -1,19 +1,35 @@
/* /*
* Copyright (c) 2022 Linaro Limited * Copyright (c) 2022 Linaro Limited
* Copyright (c) 2022 STMicroelectronics
* *
* SPDX-License-Identifier: Apache-2.0 * SPDX-License-Identifier: Apache-2.0
*/ */
&clk_hsi { &cpu0{
status = "okay"; /* USART Wakeup requires automatic HSI16 switch on in deepsleep mode
* which isn't possible in Stop Mode 2.
* Remove Stop Mode 2 from supported modes
*/
cpu-power-states = <&stop0 &stop1>;
}; };
&usart1 { &usart1 {
/* Set domain clock to HSI to allow wakeup from Stop mode */
clocks = <&rcc STM32_CLOCK_BUS_APB2 0x00004000>, clocks = <&rcc STM32_CLOCK_BUS_APB2 0x00004000>,
<&rcc STM32_SRC_HSI USART1_SEL(2)>; <&rcc STM32_SRC_HSI USART1_SEL(2)>;
/* Configure device as wakeup source */
wakeup-source; wakeup-source;
/* Configure sleep pinctrl configuration which will be used when
* device is not configured as wakeup source by the application.
* This use case is only applicable in PM_DEVICE mode.
*/
pinctrl-1 = <&analog_pb6 &analog_pb7>; pinctrl-1 = <&analog_pb6 &analog_pb7>;
pinctrl-names = "default", "sleep"; pinctrl-names = "default", "sleep";
}; };
&clk_hsi {
/* Make sure HSI is enabled */
status = "okay";
};