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Hello Tomas, I think the header generation can't be cancelled. Debuggers like J-Link and others need the header to identify different packets from different sources. The ITM merges its own packets ( stimulus port, timestamp, sync, overflow ) with DWT packets and sends these packets to TPUI. The TPUI merges these packets with ( optional ) ETM packets and sends these to the debugger. So the debugger must be able to identify these packets in all possible situations. I know that there is this overhe…
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Quote: “ADD2) You can play with output buffer and send more than just one byte at once. Dont forget that jlink server will add one byte to sended token, the structure of that byte looks like this: bit - means 7 - ? 6,5,4 - Relative time stamp bits ? 3 - ? ...” The format of the SWO data is specified in ARMv7-M Architecture Reference Manual ( DDI0403D ), Appendix D "Debug ITM and DWT Packet Protocol". ITM packets are sent as source packets with a payload of 1, 2 or 4 byte. Header Bit 0 and 1: pay…