diff options
Diffstat (limited to 'project/Core/Src/Homework')
| -rw-r--r-- | project/Core/Src/Homework/hw4.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/project/Core/Src/Homework/hw4.c b/project/Core/Src/Homework/hw4.c index 2154cd4..7bafb38 100644 --- a/project/Core/Src/Homework/hw4.c +++ b/project/Core/Src/Homework/hw4.c @@ -11,12 +11,15 @@ #include <stdio.h> -void read_and_print_char_nonblocking() { +char read_and_print_char_nonblocking() { uint8_t ch = USART_Read_Nonblocking(USART2); - printf("%c", ch); + if (ch) { + printf("%c", ch); + } if (ch == '\r') { printf("\n"); } + return ch; } void hw4_run() { |