Lpc2000

See message 2007: -Does ARM EMBEDDEDICE work with LPC210x-  for the 
answer if the JEENI support the LPC210x. 


--- In lpc2000@yahoogroups.com, "rebloby" <rebloby@y...> wrote:
> Hi Guys,
> 
> I'm trying to get a connection to my LPC2104 with also the JEENI 
from 
> EPI, but without succes. Is it really not possible to use the JEENI 
> for this uC? I have the new firmware (v2.2). 
> 
> Rev 2.2 firmware performs a self-test to verify that the JTAG 
> connection to the target is working properly. The JEENI puts the 
JTAG 
> TAP into BYPASS mode, writes out 32-bit pattern of ones and zeros 
> (0x59A6956A) and tries to read it back.
> 
> (JTAG TAP CONTROLLER)
> On my scope I see that more then 5 cycles of tck with tms '1', so 
the 
> LPC is in test logic reset. Then its going to select IR-SCAN and 
goes 
> to capture-IR and four times shift-IR with TMS '1'. Is this a good 
> instuction for the LPC2104 to select te BYPASS register???? is the 
> opcode only 4 bits????? I cant find information about that on the 
> philips website.
> 
> Then I see it goes to select DR scan and writes the pattern of ones 
> and zeros. Later it wants to read it back, but the TDO stays '0' 
and 
> the error JTAG ERROR TDO=0000.0000 appears (from the firmware). 
(TDO 
> is connected fine, so thats not it)
> 
> Does some of you know more about the tap controller and instructie 
> register of the LPC210x or where I can find that and more about the 
> compactability with the JEENI?