yangxj_xidian,
On Wed, May 21, 2008 at 8:52 PM, wrote:
> Hello Everyone
>>I have a problem about reflashing my device, I was trying to write a flash
>> driver sw for our hw platform. I have erased the contents of the
>> flash(bootloader) and I was not able to reflash it again using JTAG
>> emulation or whatsoever.
>>
>>SD config output is like this :
>>
>>** Emulator Test **
>> $$ EmuProductName=XDS510USB
>> $$ EmuPortAddr=0x510
>> $$ EmuPortMode=USB
>> $$ ProductIdQ0
>> $$ ProductVersion
>> ** Emulator Scan Test
>>
>>ERROR > > JTAG IR scan test failed
>>
>>do you know how canI fix this, which seems to be a quite serious problem?
>> Any Help is appriciated thnx.
> I have the same problem.What's the mean "the JTAG chain includes both
DSP
> and a Flash device ",and how to slove?
The JTAG scan path is supposed to be a complete loop [it can be many
devices].
emulator------>deviceA------>deviceB------>emulator
I am not familiar with SD emulators, but I suspect that 'JTAG IR scan
test failed' indicates that the data sent by the emulator never
returned.
The message "the JTAG chain includes both DSP and a Flash device "
indicates that there are 2 devices in your scan chain [or that you
have a c672x DSP. This leads to a couple of questions...
1. What DSP are you using??
2. What is the version of CCS??
3. What target board do you have?? [purchased or custom]
mikedunn
--
www.dsprelated.com/blogs-1/nf/Mike_Dunn.php