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samples: boards: stm32F4 board with mco output selection

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Add overlay file to enable the MCO1&2 output clock on the nucleo_f429zi.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is contained in:
Francois Ramu 2024-10-28 14:10:06 +01:00 • committed by Carles Cufí
commit c2778e798f
1 changed files with 31 additions and 0 deletions
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31
samples/boards/st/mco/boards/nucleo_f429zi.overlay Normal file
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/* The clock that is output must be enabled. */
&clk_hse {
status = "okay";
};
/* See reference manual (RM0090):
* 0b010: HSE clock selected
*/
#define MCO_SEL_HSE 2
/* See reference manual (RM0090):
* 0b100: MCO divided by 2
*/
#define MCO_PRE_DIV_2 4
&mco1 {
status = "okay";
clocks = <&rcc STM32_SRC_HSE MCO1_SEL(MCO_SEL_HSE)>;
prescaler = <MCO1_PRE(MCO_PRE_DIV_2)>;
pinctrl-0 = <&rcc_mco_1_pa8>;
pinctrl-names = "default";
};
&mco2 {
status = "okay";
clocks = <&rcc STM32_SRC_HSE MCO2_SEL(MCO_SEL_HSE)>;
prescaler = <MCO2_PRE(MCO_PRE_DIV_2)>;
pinctrl-0 = <&rcc_mco_2_pc9>;
pinctrl-names = "default";
};