[DSP-10] Problems Loading UHF3x35A.HEX

[Rich Miller]

Hi Bob:

It looks like I have regained serial port control. Found a solder bridge between two pins on the ADSP-2185. Not sure if I moved it by playing around inside the DSPx enclosure (i.e. moved the solder ball into a short position) or not. Bottom line the flash chip I had was in fact good, thus these will not be needed. I will hold these here should someone need them in the future, and I thank you for sending them along.

I am now trying to figure out what is going on with the PLL lock issue. As I told Mike, it only seems to happen when I do a RX to TX transition. When I leave in RX it seems to be stable. The only other odd thing I am seeing is the D/A level also seems intermittent. It will go away, and then reappear, and go away again. I am not certain if the bridge on the ADSP caused damage elsewhere to the device itself,or something else.

73

Rich, AJ3G

> On Dec 17, 2015, at 12:28 PM, Bob Larkin <boblark at proaxis.com> wrote:
> 
> Hi Rich,
> 
> I just was chatting with Mike on 75-m.  We both thought it would be worth mentioning that a very basic test is to leave JP1 open, selecting flash bank 0 (the monitor) and powering up with the RS-232 hooked to a PC with a 9600 baud terminal program.  You should see three identical lines of ASCII sign-on, starting with "!!!  ADSP-2185 Monitor ..." Also, this should result in the red LED flashing slowly.  If you send "$$$" from the terminal, you should receive back "okxy" where x can be anything, and y is an ascending ASCII character that is "0" the first time. This involves none of the DSP-10 hardware, of course.
> 
> Also, on the flash chips, hold on to them as I have more and they may as well be spread around.  Those you have probably came to me from KC7WW with the idea of getting them used.
> 
> Good luck!  Bob  W7PUA
> 
>> On 12/16/2015 06:03 PM, Richard Miller via DSP-10 wrote:
>> Hi Bob:
>> Thanks for sending this over. What chip/IC is marked ANALOG? if I understand these drawings correctly the MAX232N is connected to whatever this device is. I will check with HyperTerminal to see, but I am dreading what "ANALOG" is :)
>> Rich
>> 
>> 
>>       From: kd7ts <kd7ts at comcast.net>
>>  To: Richard Miller via DSP-10 <dsp-10 at mailman.qth.net>
>> Cc: W7PUA <boblark at proaxis.com>
>>  Sent: Wednesday, December 16, 2015 8:52 PM
>>  Subject: Re: [DSP-10] Problems Loading UHF3x35A.HEX
>> 
>>> On Wed, 16 Dec 2015 17:38:47 -0800, Richard Miller via DSP-10 <dsp-10 at mailman.qth.net> wrote:
>>> 
>>>     I received the new Flash Memory with monitor from Bob the other day. Unfortunately this did not solve my problem. When I attempt to load the Hex UHF3XXX.hex, using FL1B.BAT, I am getting a COMM error on all ports. This is what originally led me to believe my monitor maybe suspect. I have checked my computers com port and it appears to be functioning fine. The MAX232N also appears to be operating normally. As I look through the schematics, I see there is a TXD and RXD line, but I cannot see with these schematics where it goes. I would like to take a look at the device the MAX232N connects too, so if someone can help me there that would be appreciated.
>>>     Bob - What this may mean is there is another issue, so the Flash Memory I had may be OK.  Once I get a handle on what is going on with my DSPx, I will send the ones you sent to me back for safe keeping if you like.
>> 
>> Hi Rich,
>> 
>> This shows the wiring, TXD and RXD are on the GIF file. Hope this is what you are looking for.
>> 
>> The DSP-10 will always output data if UHF3 is running, so you can watch the com port with a terminal program at 9600 8 N 1. If there is no data forthcoming then there is a problem. A little late to mention this I suppose. Just pointing out that the DOS program UHFAxx.EXE is not required.
>> 
>> 
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