diff --git a/boards/arm/nucleo_f103rb/nucleo_f103rb.dts b/boards/arm/nucleo_f103rb/nucleo_f103rb.dts
index 58562b1a8e6..1761a702baa 100644
--- a/boards/arm/nucleo_f103rb/nucleo_f103rb.dts
+++ b/boards/arm/nucleo_f103rb/nucleo_f103rb.dts
@@ -101,6 +101,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch1_pwm_pa8>;
 	};
 };
diff --git a/boards/arm/nucleo_f334r8/nucleo_f334r8.dts b/boards/arm/nucleo_f334r8/nucleo_f334r8.dts
index 9ff5a06872f..654ccf5966c 100644
--- a/boards/arm/nucleo_f334r8/nucleo_f334r8.dts
+++ b/boards/arm/nucleo_f334r8/nucleo_f334r8.dts
@@ -97,6 +97,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch1_pa8>;
 	};
 };
diff --git a/boards/arm/nucleo_f429zi/nucleo_f429zi.dts b/boards/arm/nucleo_f429zi/nucleo_f429zi.dts
index 4401e57bd95..1b6bb1d8933 100644
--- a/boards/arm/nucleo_f429zi/nucleo_f429zi.dts
+++ b/boards/arm/nucleo_f429zi/nucleo_f429zi.dts
@@ -120,6 +120,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch3_pe13>;
 	};
 };
diff --git a/boards/arm/nucleo_f746zg/nucleo_f746zg.dts b/boards/arm/nucleo_f746zg/nucleo_f746zg.dts
index c9576034837..db3eb9fd9fa 100644
--- a/boards/arm/nucleo_f746zg/nucleo_f746zg.dts
+++ b/boards/arm/nucleo_f746zg/nucleo_f746zg.dts
@@ -118,6 +118,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch3_pe13>;
 	};
 };
diff --git a/boards/arm/nucleo_f756zg/nucleo_f756zg.dts b/boards/arm/nucleo_f756zg/nucleo_f756zg.dts
index 2588cbc8f56..991b97640b0 100644
--- a/boards/arm/nucleo_f756zg/nucleo_f756zg.dts
+++ b/boards/arm/nucleo_f756zg/nucleo_f756zg.dts
@@ -118,6 +118,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch3_pe13>;
 	};
 };
diff --git a/boards/arm/nucleo_f767zi/nucleo_f767zi.dts b/boards/arm/nucleo_f767zi/nucleo_f767zi.dts
index 1ce7472617d..d131df70ece 100644
--- a/boards/arm/nucleo_f767zi/nucleo_f767zi.dts
+++ b/boards/arm/nucleo_f767zi/nucleo_f767zi.dts
@@ -121,6 +121,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch3_pe13>;
 	};
 };
diff --git a/boards/arm/nucleo_g071rb/nucleo_g071rb.dts b/boards/arm/nucleo_g071rb/nucleo_g071rb.dts
index 96aabef22d9..f1c4a914a74 100644
--- a/boards/arm/nucleo_g071rb/nucleo_g071rb.dts
+++ b/boards/arm/nucleo_g071rb/nucleo_g071rb.dts
@@ -88,6 +88,7 @@
 	status = "okay";
 	pwm3: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim3_ch1_pa6>;
 	};
 };
diff --git a/boards/arm/nucleo_g0b1re/nucleo_g0b1re.dts b/boards/arm/nucleo_g0b1re/nucleo_g0b1re.dts
index 466eac72a3c..fb9c0fe550e 100644
--- a/boards/arm/nucleo_g0b1re/nucleo_g0b1re.dts
+++ b/boards/arm/nucleo_g0b1re/nucleo_g0b1re.dts
@@ -89,6 +89,7 @@
 	status = "okay";
 	pwm3: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim3_ch1_pa6>;
 	};
 };
diff --git a/boards/arm/nucleo_h723zg/nucleo_h723zg.dts b/boards/arm/nucleo_h723zg/nucleo_h723zg.dts
index 6f931a59daf..70b358be72e 100644
--- a/boards/arm/nucleo_h723zg/nucleo_h723zg.dts
+++ b/boards/arm/nucleo_h723zg/nucleo_h723zg.dts
@@ -110,6 +110,7 @@
 
 	pwm12: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim12_ch1_pb14>;
 	};
 };
diff --git a/boards/arm/nucleo_h743zi/nucleo_h743zi.dts b/boards/arm/nucleo_h743zi/nucleo_h743zi.dts
index 0b03c2e34ee..9fceca8914d 100644
--- a/boards/arm/nucleo_h743zi/nucleo_h743zi.dts
+++ b/boards/arm/nucleo_h743zi/nucleo_h743zi.dts
@@ -111,6 +111,7 @@
 
 	pwm12: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim12_ch1_pb14>;
 	};
 };
diff --git a/boards/arm/nucleo_h745zi_q/nucleo_h745zi_q_m7.dts b/boards/arm/nucleo_h745zi_q/nucleo_h745zi_q_m7.dts
index 52bd047b893..88fbf85b4cb 100644
--- a/boards/arm/nucleo_h745zi_q/nucleo_h745zi_q_m7.dts
+++ b/boards/arm/nucleo_h745zi_q/nucleo_h745zi_q_m7.dts
@@ -87,6 +87,7 @@
 
 	pwm12: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim12_ch1_pb14>;
 	};
 };
diff --git a/boards/arm/nucleo_h753zi/nucleo_h753zi.dts b/boards/arm/nucleo_h753zi/nucleo_h753zi.dts
index 02a1422b3d2..d9d41a25da3 100644
--- a/boards/arm/nucleo_h753zi/nucleo_h753zi.dts
+++ b/boards/arm/nucleo_h753zi/nucleo_h753zi.dts
@@ -111,6 +111,7 @@
 
 	pwm12: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim12_ch1_pb14>;
 	};
 };
diff --git a/boards/arm/nucleo_l496zg/nucleo_l496zg.dts b/boards/arm/nucleo_l496zg/nucleo_l496zg.dts
index c07bf5a5939..32f31b7e6ab 100644
--- a/boards/arm/nucleo_l496zg/nucleo_l496zg.dts
+++ b/boards/arm/nucleo_l496zg/nucleo_l496zg.dts
@@ -105,6 +105,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch1_pe9
 			     &tim1_ch2_pe11
 			     &tim1_ch3_pe13>;
@@ -125,6 +126,7 @@
 
 	pwm15: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim15_ch1_pb14>;
 	};
 };
diff --git a/boards/arm/olimex_stm32_h103/olimex_stm32_h103.dts b/boards/arm/olimex_stm32_h103/olimex_stm32_h103.dts
index 75f540beaea..056cc6d247d 100644
--- a/boards/arm/olimex_stm32_h103/olimex_stm32_h103.dts
+++ b/boards/arm/olimex_stm32_h103/olimex_stm32_h103.dts
@@ -105,6 +105,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch1_pwm_pa8>;
 	};
 };
diff --git a/boards/arm/olimexino_stm32/olimexino_stm32.dts b/boards/arm/olimexino_stm32/olimexino_stm32.dts
index eaf9c5f7f67..087cc1633d2 100644
--- a/boards/arm/olimexino_stm32/olimexino_stm32.dts
+++ b/boards/arm/olimexino_stm32/olimexino_stm32.dts
@@ -130,6 +130,7 @@ uext_serial: &usart1 {};
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch1_pwm_pa8>;
 	};
 };
diff --git a/boards/arm/stm32f103_mini/stm32f103_mini.dts b/boards/arm/stm32f103_mini/stm32f103_mini.dts
index 77b400142c5..40a225e357f 100644
--- a/boards/arm/stm32f103_mini/stm32f103_mini.dts
+++ b/boards/arm/stm32f103_mini/stm32f103_mini.dts
@@ -93,6 +93,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch1_pwm_pa8>;
 	};
 };
diff --git a/boards/arm/stm32f3_disco/stm32f3_disco.dts b/boards/arm/stm32f3_disco/stm32f3_disco.dts
index ef74e9e04cc..2b8800a1c72 100644
--- a/boards/arm/stm32f3_disco/stm32f3_disco.dts
+++ b/boards/arm/stm32f3_disco/stm32f3_disco.dts
@@ -179,6 +179,7 @@
 	status = "okay";
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch1_pa8>;
 	};
 };
diff --git a/boards/arm/stm32f411e_disco/stm32f411e_disco.dts b/boards/arm/stm32f411e_disco/stm32f411e_disco.dts
index 3b22981c18b..40ce3ae04ba 100644
--- a/boards/arm/stm32f411e_disco/stm32f411e_disco.dts
+++ b/boards/arm/stm32f411e_disco/stm32f411e_disco.dts
@@ -103,6 +103,7 @@
 
 	pwm4: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim4_ch1_pd12
 			     &tim4_ch2_pd13
 			     &tim4_ch3_pd14
diff --git a/boards/arm/stm32f746g_disco/stm32f746g_disco.dts b/boards/arm/stm32f746g_disco/stm32f746g_disco.dts
index f8cb71971a6..2414969a94e 100644
--- a/boards/arm/stm32f746g_disco/stm32f746g_disco.dts
+++ b/boards/arm/stm32f746g_disco/stm32f746g_disco.dts
@@ -114,6 +114,7 @@
 
 	pwm3: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim3_ch1_pb4>;
 	};
 };
diff --git a/boards/arm/stm32vl_disco/stm32vl_disco.dts b/boards/arm/stm32vl_disco/stm32vl_disco.dts
index d34e5f6afd3..6a9d2388dd2 100644
--- a/boards/arm/stm32vl_disco/stm32vl_disco.dts
+++ b/boards/arm/stm32vl_disco/stm32vl_disco.dts
@@ -111,6 +111,7 @@
 
 	pwm1: pwm {
 		status = "okay";
+		st,prescaler = <10000>;
 		pinctrl-0 = <&tim1_ch1_pwm_pa8>;
 	};
 };