Getting started with the smt148, Connection to the host, Jtag connection – Sundance SMT148 User Manual
Page 34: External comport cable, Smt148 interconnection, Checking that the system is functional, Jtag connection external comport cable
Version 1.4
Page 34 of 35
SMT148 User Manual
Getting started with the SMT148
Please note that information regarding Power connections and interfaces is not
outlined in this section of the document. For more details, please refer to the relevant
paragraphs of this document.
Connection to the host
JTAG connection
If you wish to run Code Composer Studio and have access to any DSP present in
your embedded SMT148 system, you are required to connect a JTAG cable
(combination of
and
) between the SMT148 (JTAG1)
and the JTAG connector on the front panel of the carrier card hosted in a PC. An
alternative solution for users who wish to run the JTAG chain from a laptop is to use
External ComPort cable
3L Diamond users, in order to interact with the embedded system for development
purposes, will require to use an external ComPort cable (SMT502 Embedded)
connected between the SMT148 (connector JP4) and a carrier card hosted in a PC.
On the PC side the ComPort cable plugs into the front panel ComPort connector of
the carrier card.
This cable is also required for running the Confidence Test.
SMT148 interconnection
Two SMT148 embedded carrier cards can be cascaded and thus creating an
embedded system with up to 8 TIM sites and double the number of interfaces. The
JTAG chain between the two carriers can be enabled by connecting a cable between
JTAG2 of the first SMT148 to JTAG1 of the second SMT148. 3L Diamond users can
also enable a ComPort link between both carriers using an SHB cable (
)
between JP1 of the first carrier card to JP2 of the second carrier card.
Checking that the system is functional
A DSP Sundance TIM (SMT365, SMT376, SMT374, …) is required to check that the
ComPort link between the SMT148 and the host is properly enabled. This DSP TIM
needs to be fitted on TIM Site 1 of the SMT148 to access the external ComPort 1
connected to JP4. The user should then open the SMTBoardInfo (
)
program and launch the Confidence Test (Tools menu). If the test fails, please check
the ComPort switch settings (Tools Menu) and make sure that the External Buffered
ComPort is enabled.