PP Presentation

• Starting and ending characters with character stuffing is a framing method that gets around the resynchronization problem. Each frame starts with the ASCII DLE STX and ends with DLE ETX (DLE=Data Link Escape, STX= Start of text). The problem with this is that binary data may contain a DLE STX or ETX sequence in it. A solution is to send each DLE in the binary data twice. This is called character stuffing. The problem with character stuffing is that it is 8-bit ASCII code tied.

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