diff --git a/os/hal/ports/STM32/LLD/ADCv4/hal_adc_lld.c b/os/hal/ports/STM32/LLD/ADCv4/hal_adc_lld.c
index b45aef900..6762ec8e6 100644
--- a/os/hal/ports/STM32/LLD/ADCv4/hal_adc_lld.c
+++ b/os/hal/ports/STM32/LLD/ADCv4/hal_adc_lld.c
@@ -153,16 +153,18 @@ static void adc_lld_calibrate(ADCDriver *adcp) {
 
   osalDbgAssert(adcp->adcm->CR == ADC_CR_ADVREGEN, "invalid register state");
 
-  adcp->adcm->CR = adcp->config->calibration & (ADC_CR_ADCALDIF |
-                                                ADC_CR_ADCALLIN);
+  adcp->adcm->CR &= ~(ADC_CR_ADCALDIF | ADC_CR_ADCALLIN);
+  adcp->adcm->CR |= adcp->config->calibration & (ADC_CR_ADCALDIF |
+                                                 ADC_CR_ADCALLIN);
   adcp->adcm->CR |= ADC_CR_ADCAL;
   while ((adcp->adcm->CR & ADC_CR_ADCAL) != 0U)
     ;
 #if STM32_ADC_DUAL_MODE
   osalDbgAssert(adcp->adcs->CR == ADC_CR_ADVREGEN, "invalid register state");
 
-  adcp->adcs->CR = adcp->config->calibration & (ADC_CR_ADCALDIF |
-                                                ADC_CR_ADCALLIN);
+  adcp->adcs->CR &= ~(ADC_CR_ADCALDIF | ADC_CR_ADCALLIN);
+  adcp->adcs->CR |= adcp->config->calibration & (ADC_CR_ADCALDIF |
+                                                 ADC_CR_ADCALLIN);
   adcp->adcs->CR |= ADC_CR_ADCAL;
   while ((adcp->adcs->CR & ADC_CR_ADCAL) != 0U)
     ;
diff --git a/testhal/STM32/multi/ADC/debug/STM32-ADC (Select ELF file)(OpenOCD, Flash and Run).launch b/testhal/STM32/multi/ADC/debug/STM32-ADC (Select ELF file)(OpenOCD, Flash and Run).launch
index 98cf3d524..be98c7537 100644
--- a/testhal/STM32/multi/ADC/debug/STM32-ADC (Select ELF file)(OpenOCD, Flash and Run).launch	
+++ b/testhal/STM32/multi/ADC/debug/STM32-ADC (Select ELF file)(OpenOCD, Flash and Run).launch	
@@ -33,7 +33,7 @@
 <intAttribute key="org.eclipse.cdt.launch.ATTR_BUILD_BEFORE_LAUNCH_ATTR" value="2"/>
 <stringAttribute key="org.eclipse.cdt.launch.COREFILE_PATH" value=""/>
 <stringAttribute key="org.eclipse.cdt.launch.DEBUGGER_REGISTER_GROUPS" value=""/>
-<stringAttribute key="org.eclipse.cdt.launch.FORMAT" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&lt;contentList&gt;&lt;content id=&quot;rand[31]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[30]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[29]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[28]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[27]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[26]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[25]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[24]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[23]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[22]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[21]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[20]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[19]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[18]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[17]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[16]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[15]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[14]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[13]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[12]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[11]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[10]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[9]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[8]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[7]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[6]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[5]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[4]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[3]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[2]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[1]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[0]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;xPSR-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;mfs_buffer[447]-null-mfs_test_001_005_execute-(format)&quot; val=&quot;0&quot;/&gt;&lt;content id=&quot;mfs_buffer[507]-null-mfs_test_001_005_execute-(format)&quot; val=&quot;0&quot;/&gt;&lt;content id=&quot;rp[506]-rp-mfs_flash_read-(format)&quot; val=&quot;0&quot;/&gt;&lt;content id=&quot;rp[507]-rp-mfs_flash_read-(format)&quot; val=&quot;0&quot;/&gt;&lt;content id=&quot;rp-mfs_flash_read-(cast_to_array)&quot; val=&quot;0:511&quot;/&gt;&lt;content id=&quot;rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;/contentList&gt;"/>
+<stringAttribute key="org.eclipse.cdt.launch.FORMAT" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&lt;contentList&gt;&lt;content id=&quot;rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rp-mfs_flash_read-(cast_to_array)&quot; val=&quot;0:511&quot;/&gt;&lt;content id=&quot;rp[507]-rp-mfs_flash_read-(format)&quot; val=&quot;0&quot;/&gt;&lt;content id=&quot;rp[506]-rp-mfs_flash_read-(format)&quot; val=&quot;0&quot;/&gt;&lt;content id=&quot;mfs_buffer[507]-null-mfs_test_001_005_execute-(format)&quot; val=&quot;0&quot;/&gt;&lt;content id=&quot;mfs_buffer[447]-null-mfs_test_001_005_execute-(format)&quot; val=&quot;0&quot;/&gt;&lt;content id=&quot;xPSR-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[0]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[1]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[2]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[3]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[4]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[5]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[6]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[7]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[8]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[9]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[10]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[11]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[12]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[13]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[14]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[15]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[16]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[17]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[18]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[19]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[20]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[21]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[22]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[23]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[24]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[25]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[26]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[27]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[28]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[29]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[30]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;rand[31]-rand-main-(format)&quot; val=&quot;4&quot;/&gt;&lt;/contentList&gt;"/>
 <stringAttribute key="org.eclipse.cdt.launch.GLOBAL_VARIABLES" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;globalVariableList/&gt;&#10;"/>
 <stringAttribute key="org.eclipse.cdt.launch.MEMORY_BLOCKS" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;memoryBlockExpressionList&gt;&#10;&lt;memoryBlockExpressionItem&gt;&#10;&lt;expression text=&quot;0x20000c34&quot;/&gt;&#10;&lt;/memoryBlockExpressionItem&gt;&#10;&lt;/memoryBlockExpressionList&gt;&#10;"/>
 <stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="${selected_resource_loc}"/>