Re: The problems in src/sys/dev/ic/isp.c

Dennis Clarke <[email protected]> Mon, 27 Apr 2026 13:53:07 -0400

Newsgroups	gmane.os.netbsd.ports.alpha
Message-ID	<[email protected]>

On 4/27/26 11:22, Dennis Clarke wrote:
> On 4/27/26 06:52, [email protected] wrote:
>> Hi all,
>>
>> FYI
>>
>> I have encountered a problem with several Alpha machines where the 
>> power turns on but they do not function. Three Alpha machines, DEC3000 
>> model 700, Alpha XL 266, and PC164UX, are now working after replacing 
>> their RTC chips.
> 
> OKay !  Thank you. This is a glimmer of hope. I will look closely into
> the machine and find the Dallas? RTC chip. There must be a way to
> replace it and I can tell you it has been years, no decades actually,
> since I held a soldering heater pointy thing-a-ma-gig.
> 

Sort of a self reply : I located the nasty miserable DALLAS DS1287

     https://www.genunix.com/dclarke/alpha/dallas/DALLAS_DS1287_RTC_1.png

Just a horrific design wherein pins 16 and 20 are absent.   :(


-- 
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken