Reference Error Codes and Warnings
Error Codes
Error Message Description
Possible Solut
ions
E803 There should be at least 3
Chirp-K and 3 C
hirp-J state
As part of the U
SB2.0 Chirp
description, a minimum of
three Chirp-K and three
Chirp-J state
are expected
after Chirp Response
timing .An absence of
this may lead
to incorrect
results
Press the Run button to
acquire the si
gnals
E804
No Chirp-J state found As part of the USB2.0 Chirp
description, a minimum
of one Chirp
-J state is
expected after Chirp
Response timing. An
absence of
this may lead to
incorrect results
Press the Ru
n button to
acquire the signals
E805
No Chirp-K state found As part of the USB2.0 Chirp
description, a minimum
of one Chi
rp-K state
is expected after Chirp
Response timing. An
absence
of this may lead to
incorrect results
Press the
Run button to
acquire the signals
Rising Edge Rate/Falling Edge Rate Measurement
E901 The Hig
h level values need
to be decreased
This me
ssage is displayed
if no edge is found in the
high level
Decrea
se the percentage
of the high level values of
Rising Edge Rate/Falling
Edge R
ate
E902 The Low level values need
to be i
ncreased
If no e
dge is found in the
low level the m essage is
displayed
Decrease the percentage
of the
low level values of
Rising Edge Rate/Falling
Edge Rate
E903 Both the High and Low
level values need to be
chan
ged
If no edge is found in the
high
and low level the
message is displayed
Increase and decrease the
percentage of the high and
low l
evel values of Rising
Edge Rate/Falling Edge
Rate
E904 The calculated Rising Edge
Rate is more than the
cal
culated bit time of the
input signal
This warning appears when
the calculated Rising Edge
Rat
e is more than the
calculated bit time of the
input signal
Increase the lower level
and decrease the upper
lev
el of the configure limits
of Rising Edge Rate/Falling
Edge Rate
E905 The calculated Falling
Edge Rate is more than the
ca
lculated bit time of the
input signal
This warning appears when
the calculated Falling Edge
Ra
te is more than the
calculated bit time of the
input signal
Increase the lower level
and decrease the upper
le
vel of the configure limits
of Rising Edge Rate/Falling
Edge Rate
160 TDSUSB2 Universal Serial Bus Measurements Package
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