diff --git a/lib/usart_enhanced.c b/lib/usart_enhanced.c
index f519490..f7b8498 100644
--- a/lib/usart_enhanced.c
+++ b/lib/usart_enhanced.c
@@ -2,7 +2,7 @@
  *  @file usart_enhanced.c
  *  @author King Kévin <kingkevin@cuvoodoo.info>
  *  @copyright SPDX-License-Identifier: GPL-3.0-or-later
- *  @date 2018
+ *  @date 2018-2021
  *  @details the USART peripherals only support 8 or 9-bit word and even or odd parity (included in the data bits). The library adds support for 5 to 8-bit words, none/even/odd/mark/space parity (on top of the data bits)
  *  @note since parity is handled in software, the parity error (PE) flag is unused and should be replaced by the value return by usart_enhanced_parity_error
  *  @remark 9-bit raw communication is not supported since this is not common and can be done without this library
diff --git a/lib/usart_enhanced.h b/lib/usart_enhanced.h
index 41b0353..20f1a02 100644
--- a/lib/usart_enhanced.h
+++ b/lib/usart_enhanced.h
@@ -2,13 +2,12 @@
  *  @file
  *  @author King Kévin <kingkevin@cuvoodoo.info>
  *  @copyright SPDX-License-Identifier: GPL-3.0-or-later
- *  @date 2018
+ *  @date 2018-2021
  *  @details the USART peripherals only support 8 or 9-bit word and even or odd parity (included in the data bits). The library adds support for 5 to 8-bit words, none/even/odd/mark/space parity (on top of the data bits)
  *  @note since parity is handled in software, the parity error (PE) flag is unused and should be replaced by the value return by usart_enhanced_parity_error
  *  @remark 9-bit raw communication is not supported since this is not common and can be done without this library
  */
 #pragma once
-#error not converted for STM32F4
 
 /** enhanced USART setting for the additional parity bit*/
 enum usart_enhanced_parity_t {