stm32f1 f4 usart sr register reset value are different,it is print error or it is truely different

[Ethan1]

[waclawek.jan]

0x00C0 and 0x000000C0 are the same values. The space is there only to visually separate the many digits in a 32-bit number (I personally prefer 0x0000'00C0, but there's no universally accepted "standard" for this).

JW