chore(serial): allows TX_TIMEOUT redefinition

fpistm · fronders · commit 4de26b19d332 · 2023-09-12T11:04:34.000-05:00
Signed-off-by: Frederic Pillon &lt;frederic.pillon@st.com&gt;
diff --git a/cores/arduino/stm32/uart.h b/cores/arduino/stm32/uart.h
@@ -86,7 +86,9 @@ struct serial_s {
 };
 
 /* Exported constants --------------------------------------------------------*/
+#ifndef TX_TIMEOUT
 #define TX_TIMEOUT  1000
+#endif
 
 #if !defined(RCC_USART1CLKSOURCE_HSI)
 /* Some series like C0 have 2 derivated clock from HSI: HSIKER (for peripherals)
