Ответ: Вот ещё кое-что Что означает аббревиатура DCC ?
В описании J-Link встречается, но нигде не расшифровывается.
Смотрите ниже.
И для будущего общения хотелось бы Ваш e-mail.
6.4.3 Data download via DCC
In this case, the RAM code is started as described above before downloading any
data. The RAM code then communicates with the PC (via DCC, JTAG and J-Link),
transferring data to the target. The RAM code then programs the data into flash and
waits for new data from the host. The WriteMemory functions of J-Link are used to
transfer the RAM code only, but not to transfer the data. The CPU is started and
stopped only once. Using DCC for communication is typically faster than using Write-
Memory for RAM download since the overhead is lower.