SWD mode emulator.

1. Advantages of SWD download

SWD mode is more reliable than JTAG in high speed mode. In the case of large amounts of data under the JTAG download program will fail, but the SWD will be much less likely to happen. The basic use of JTAG emulation mode can be used directly in SWD mode.

2, SWD mode support?

The common emulator on the market supports SWD mode (1) JLINKV6 supports SWD emulation mode, and the speed is slower. (2) JLINKV7 supports SWD emulation mode better, the speed has improved significantly, the speed is 6 times of JLINKV6. (3) JLINKV8 supports SWD emulation mode very well, the speed can be up to 10M. (4) ULINK1 does not support SWD mode.

3. SWD Interface

With the introduction of ARM's Cortex series, sampling SWD debugging has become the first choice. SWD not only has a speed comparable to JTAG, but also uses much less debugging wires. Many people in the sampling SWD way to debug, usually using 4-wire?