Reliable and efficient data transfer over serial port
A system and method of reliable and efficient data transfer over serial port are disclosed. In one embodiment, a method of communicating data to a headless system over a communications medium includes transmitting data over the communications medium, ceasing transmitting data over communications medium in response to detecting a change in a status of a pin (e.g., a pin of a Modem Status Register, a Clear to Send, a 5 th bit of the Modem Status Register, etc.) on the communications medium, and repeating the transmitting data over the communications medium in response to receiving a request to resend the data. The method may include transmitting a size of the data (e.g., a 2 byte value) over the serial port.
1. A method of communicating data to a headless system over a communications medium, comprising:
transmitting data over the communications medium, wherein the communication medium is a serial port that may be used for communicating the large chunk data between a remote system and the headless system at high baud rates reliably and efficiently;
ceasing transmitting data over the communications medium in response to detecting a change in a status of a pin on the communications medium, wherein the pin is at least one of a pin of a Modem Status Register (MSR), Clear to Send (CIS), and a 5th bit of the MSR; and
repeating the transmitting data over the communications medium in response to receiving a request to resend the data;
wherein the communications medium is associated with the serial port of the remote system;
further comprising transmitting a size of the data over the serial port; and
wherein the size of the data is a 2 byte value.
2. The method of claim 1 wherein the pin is the pin of the Modem Status Register (MSR).
3. The method of claim 2 wherein the pin is Clear to Send (CIS), or the 5th bit of the MSR.