diff --git a/tcl/target/stm32l4x.cfg b/tcl/target/stm32l4x.cfg
index 9a696736c..1666b2549 100644
--- a/tcl/target/stm32l4x.cfg
+++ b/tcl/target/stm32l4x.cfg
@@ -143,8 +143,8 @@ $_TARGETNAME configure -event reset-init {
 	# CPU comes out of reset with MSI_ON | MSI_RDY | MSI Range 6 (4 MHz).
 	# Use MSI 24 MHz clock, compliant even with VOS == 2.
 	# 3 WS compliant with VOS == 2 and 24 MHz.
-	mww 0x40022000 0x00000103   ;# FLASH_ACR = PRFTBE | 3(Latency)
-	mww 0x40021000 0x00000099   ;# RCC_CR = MSI_ON | MSIRGSEL | MSI Range 9
+	mmw 0x40022000 0x00000103 0x00000007  ;# FLASH_ACR = PRFTBE | 3(Latency)
+	mmw 0x40021000 0x00000099 0x000000F0  ;# RCC_CR = MSI_ON | MSIRGSEL | MSI Range 9
 
 	# Boost JTAG frequency
 	adapter speed 4000
diff --git a/tcl/target/stm32wbx.cfg b/tcl/target/stm32wbx.cfg
index 737b1447c..d11c5fb8c 100644
--- a/tcl/target/stm32wbx.cfg
+++ b/tcl/target/stm32wbx.cfg
@@ -76,8 +76,8 @@ $_TARGETNAME configure -event reset-init {
     # CPU comes out of reset with MSI_ON | MSI_RDY | MSI Range 4 MHz.
     # Configure system to use MSI 24 MHz clock, compliant with VOS default Range1.
     # 2 WS compliant with VOS=Range1 and 24 MHz.
-    mmw 0x58004000 0x00000102 0  ;# FLASH_ACR |= PRFTBE | 2(Latency)
-    mmw 0x58000000 0x00000091 0  ;# RCC_CR = MSI_ON | MSI Range 24 MHz
+    mmw 0x58004000 0x00000102 0x00000007  ;# FLASH_ACR |= PRFTBE | 2(Latency)
+    mmw 0x58000000 0x00000091 0x000000F0  ;# RCC_CR = MSI_ON | MSI Range 24 MHz
     # Boost JTAG frequency
     adapter speed 4000
 }
diff --git a/tcl/target/stm32wlx.cfg b/tcl/target/stm32wlx.cfg
index 39c897fc5..ddf760d45 100644
--- a/tcl/target/stm32wlx.cfg
+++ b/tcl/target/stm32wlx.cfg
@@ -91,8 +91,8 @@ $_CHIPNAME.cpu0 configure -event reset-init {
 	# CPU comes out of reset with MSI_ON | MSI_RDY | MSI Range 4 MHz.
 	# Configure system to use MSI 24 MHz clock, compliant with VOS default Range1.
 	# 2 WS compliant with VOS=Range1 and 24 MHz.
-	mmw 0x58004000 0x00000102 0  ;# FLASH_ACR |= PRFTEN | 2(Latency)
-	mmw 0x58000000 0x00000091 0  ;# RCC_CR = MSI_ON | MSI Range 24 MHz
+	mmw 0x58004000 0x00000102 0x00000007  ;# FLASH_ACR |= PRFTEN | 2(Latency)
+	mmw 0x58000000 0x00000099 0x000000F0  ;# RCC_CR = MSI_ON | MSI Range 24 MHz | MSIRGSEL
 	# Boost JTAG frequency
 	adapter speed 4000
 }