User's Manual

Table Of Contents
E-mail Send Commands
AT+i Programmer‘s Manual Version 8.32 6-3
I/OK
If <sz> is within limits and after <sz> bytes have been received
successfully.
I/ERROR
If <sz> is out of bounds, or if a communication error occurred
during the Internet session.
Notes:
If <sz> is larger than 256 bytes, iChip assumes host flow control. Depending on the
setting of the FLW parameter, the flow control mode is either software or hardware.
Under software flow control, the host processor must respond to iChip‘s flow control
characters. The software flow control protocol is detailed in the Host iChip
Software Flow Control section later in this document. When software flow control is
active, it is recommended to set the iChip to Echo-Off mode. Under hardware flow
control, the ~CTS/~RTS RS232 control signals must be connected and the host must
respond to the iChip‘s ~CTS signal. The host may send data only when the ~CTS
signal is asserted (active low). If a transmission error occurs while in hardware flow
control, iChip continues receiving all remaining <sz> bytes before returning the
I/ERROR response.
Some SMTP servers limit e-mail message size to a value that is lower than iChip‘s
limitations.