Aurix
™ Lite-Kit V1.1
Hardware Description
Board Users Manual
16
Revision June, 2020
Pin Name
Aurix
™ Pin Direction Description
7
KEY (GND
in cable)
GND
-
If the recommended connector with keying shroud is not used,
this pin provides another option to enforce polarization. In that
instance this pin is removed from the target connector and the
associated jack in the cable connector closed with a plastic pin for
example.
8
DAP3
/TRST
IO
DAP: Optional third data pin.
USER1
IO/I
Generic signal that can be used for non-specified functions.
(DAPEN)
I
Optional indicator that the tool is connected. This can be used to
enable the DAP interface of the device
9
GND
GND
Supply ground.
10
RESET
/PORST
IO
Target reset signal. Open drain active low signal. May be used bi-
directionally to drive or sense the target reset signal. Usually
driven by the tool to reset the target system. The target system is
responsible for providing a pull-up to VREF on this signal to
establish a logic one. The resistor shall not have a value less than
1 kOhms.
4.6
miniWiggler JDS
The miniWiggler JDS is a low cost debug tool which allows you access to the DAP of the device. Make sure that
you have the latest DAS release. Debugging is possible via the DAS Server ‘UDAS‘. Please contact your
preferred debug vendor for support of DAS. If you have connected the board to the PC and there runs the DAS
server, then a working connection is visible via the green LED D2 (ADBUS4). The status LED D1
(ADBUS7/green) is switched on/off through the DAS Server, depending on the used debugger (client).
IMPORTANT: Make sure that there is no or a tristated connection on the DAP connector if the LED D1 is
on.
5
Reset
The power on reset input pin (/PORST) of the Aurix
™ TC27x family is a bi-directional input/output intended for
external triggering of power-related resets. If the PORST pin remains asserted after a power event then the reset
will be extended until it is deasserted. This does not replace the ESR pins functional reset. An internal pull-up
resistor (2.2k
Ω) keeps the PORST# pin high during normal operation. A low level at this pin will force a hardware
reset. In case of a MCU internal reset the PORST# pin will drive a low signal.
A reset signal can be issued by
the on-board Reset Button (
“RESET”)
the on-board debug IC FT2232HL (IC1.27
– ACBUS1)
the on-board DAP connector (DAP.10)
the Arduino Power Header (X302.3
, “/PORST”)
the pin header X1 (X1.30
, “/PORST”)
An Aurix
™ internal circuit always ensures a save Power-on-Reset. Aurix™ TC275 Lite-Kit does not require any
additional external components to generate a reset signal during power-up. For more informations, please refer
t
5.1
CAN Transceiver
The
Aurix™ TC275 Lite-Kit
provides a CAN interface via the CAN connector. The
Infineon high-speed CAN transceiver generation, used inside HS CAN networks for automotive and also for
industrial applications. It is designed to fulfill the requirements of ISO 11898-2 (2016) physical layer specification
and respectively also the SAE standards J1939 and J2284. The CAN buses (signals CANH, CANL) are
terminated with by a 120Ohm resistor. The transceiver is
connected to the TriCore™ device. To use the CAN
pins see Table 9.