workaround to disable serial echoes causes linker warnings

I am trying to use the C8051 uart in a C program to talk to an AT modem device. To do this I need to work around the Keil library getchar which echoes received characters. So I made my own getchar function...
workaround to disable serial echoes causes linker warnings

I am trying to use the C8051 uart in a C program to talk to an AT modem device. To do this I need to work around the Keil library getchar which echoes received characters. So I made my own getchar function...
Echo cancelation for scanf

Well, scanf now works fine. I can read signed int, hex and float. :-) But every received sign is echoed by scanf. while(1) { printf("Enter your personal secret Hex-key!\n"); if (scanf("%X"...
Echo cancelation for scanf

Well, scanf now works fine. I can read signed int, hex and float. :-) But every received sign is echoed by scanf. while(1) { printf("Enter your personal secret Hex-key!\n"); if (scanf("%X"...
ICMP echo request (ping) from RL-TCPnet

Hello, everybody! Is anybody knows the ability to make ICMP echo request (ping) using RL-TCPnet library??? thanks in advance.