FS-940 Digi International, FS-940 Datasheet - Page 19

• Manufacturer Part Number: FS-940
• Description: JTAG-BOOSTER FOR ADSP-21XXX 5V
• Manufacturer: Digi International
• Series: Digi/FS Forthr
• Type: FLASHr

Specifications of FS-940

• Contents: Programmer and Associated Interface Software
• For Use With/related Products: ADI ADSP-21xxx, 5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

JTAG-Booster for Analog Devices ADSP-21xxx
Pins specified with /I2CCLK= and /I2CDAT= must have different
control cells
The pin specified with the option /I2CDAT= must be able to be switched to
high impedance while the pin specified with option /I2CCLK= is an active
output. See chapter 1.10 “Initialization file JTAGxxx.INI”.
Pins specified with /I2CCLK= and /I2CDATI= must have different
control cells
The pin specified with the option /I2CDATI= must be able to be switched to
high impedance while the pin specified with option /I2CCLK= is an active
output. See chapter 1.10 “Initialization file JTAGxxx.INI”.
Pins specified with /I2CDATO= and /I2CDATI= must have different
control cells
The pin specified with the option /I2CDATI= must be able to be switched to
high impedance while the pin specified with option /I2CDATO= is an active
output. See chapter 1.10 “Initialization file JTAGxxx.INI”.
Specify only one of that options:
Some options are exclusive (i.e. /8BIT and /16BIT). Don't mix them.
Sum of instruction register bits to low. Should be at least 5 bits for a
Analog Devices ADSP-21xxx
The sum of all instruction register bits in the JTAG chain does not fit to the
Analog Devices ADSP-21xxx. Check the target connection. Check the target
CPU type. Check the settings for /IROFFS= and /CPUPOS= , if there are
several parts in the JTAG chain.
Target no longer connected
There is a cyclic check of the JTAG chain. Check target power. Check target
connection.
There are unknown parts in the JTAG chain. Please use the option
/IROFFS= to specify the instr. reg. offset of the CPU.
If there are unknown parts in the JTAG chain, the program isn’t able to
determine the logical position of the CPU’s instruction register.
JTAG_ADSP-21xxxa.doc
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