Connectors
This section contains descriptions of the probe's connectors.
I-jet Trace has a small—0.05 in x 1.4 in (1.35 mm × 3.5 mm)—external power connector right next to the USB connector. It can be used whenever the host computer is unable to deliver the necessary power to I-jet Trace and to the target board. The external power supply must deliver 5 V DC at 1 A minimum for I-jet Trace CM and 2 A minimum for I-jet Trace A/R/M.
When external power is connected, almost all power will be taken from the external power supply, allowing more power-consuming targets (up to 600 mA) to be powered by I-jet Trace.
The I-scope connector on the side of the probe is provided for connecting the legacy I-scope analog probe to the I-jet Trace.
This 30-pin connector is reserved for future use to add more functionality and features to I-jet Trace.
I-jet Trace CM comes with a MIPI-20 connector that allows a standard 20-pin flat cable (included) to connect to a target with a MIPI-20 male header. This target connection allows for JTAG/SWD/cJTAG debugging as well as 1, 2, or 4-bit ETM/N-Trace, or SWO trace.
The MIPI-20 pinout for I-jet Trace CM is the same as for I-jet.
I-jet Trace A/R/M comes with two 60-pin flat cables that terminate in an adapter board with a Mictor-38 male connector that is designed to plug in directly into the target board.
The Mictor connector allows for JTAG/SWD/cJTAG/SWO debugging as well as for up to 16-bit wide ETM or N-Trace trace.
The adapter board also contains a standard MIPI-20 header for connecting to target boards without the Mictor connection.
This is the Mictor-38 pinout for I-jet Trace A/R/M:
SIgnal | Pin | Pin | SIgnal |
|---|---|---|---|
1 | 2 | ||
3 | 4 | ||
GND | 5 | 6 | TRACECLK |
TRIGIN | 7 | 8 | TRIGOUT |
nSRST | 9 | 10 | EXTTRIG |
TDO | 11 | 12 | VTREF |
RTCK | 13 | 14 | VSUPPLY (not used) |
TCK | 15 | 16 | TRACEDATA[07] |
TMS | 17 | 18 | TRACEDATA[06] |
TDI | 19 | 20 | TRACEDATA[05] |
nTRST | 21 | 22 | TRACEDATA[04] |
TRACEDATA[15] | 23 | 24 | TRACEDATA[03] |
TRACEDATA[14] | 25 | 26 | TRACEDATA[02] |
TRACEDATA[13] | 27 | 28 | TRACEDATA[01] |
TRACEDATA[12] | 29 | 30 | |
TRACEDATA[11] | 31 | 32 | |
TRACEDATA[10] | 33 | 34 | |
TRACEDATA[09] | 35 | 36 | TRACECTL |
TRACEDATA[08] | 37 | 38 | TRACEDATA[00] |
The mating connector for Mictor-38 on target board is AMP/Tyco 5767054-1.
