2 ms·
Modern modems have "buffer access mode" for this. When you need to receive data, modem notifies you with a message '+QIURC: "recv",<connection>,<len>', then you
by yetihehe 3y ago
Modern modems have "buffer access mode" for this. When you need to receive data, modem notifies you with a message '+QIURC: "recv",<connection>,<len>', then you send 'AT+QIRD=<conn>,<len>' and you know next <len> bytes are data, without any parsing.