Re: [M100] Low power check

I'm guessing D8.7 is write-only, and reading that bit might produce a meaningless result. Its also possible there's a read-modify-write problem with reading & writing the ports directly - Some test routines use logical operators rather than direct reads/writes... On 6/28/18, Kurt McCullum

Re: [M100] nn - getting back involved.

I see one in stock will have to make some more :) On Thu, Jun 28, 2018 at 9:13 PM Gregory McGill wrote: > Let me check i think I have at least one still > > On Thu, Jun 28, 2018 at 5:42 PM Randall Kindig > wrote: > >> The RAM boards show out of stock, Greg >> >> On Jun 27, 2018, at 12:49 PM,

Re: [M100] nn - getting back involved.

Let me check i think I have at least one still On Thu, Jun 28, 2018 at 5:42 PM Randall Kindig wrote: > The RAM boards show out of stock, Greg > > On Jun 27, 2018, at 12:49 PM, Gregory McGill > wrote: > > I sell both already assembled and tested on arcadeshopper.com > > On Wed, Jun 27, 2018 at

Re: [M100] Low power check

Thanks for the tip. I just tried that one but I get 128 for both. It almost seems like that flag is an indicator for the power switch. Though I don't know what use that is. On Thu, Jun 28, 2018, at 8:14 PM, John Gardner wrote: > Take a look at p. 5-30 in the 8201a Svc Manual, figs. 5-47 &

Re: [M100] Tandy 200 power button replacement

I have a scrap 200 with a bad "=" and "del" key, and the power button has too high of a resistance. I was planning on trying to repair them since I have the 3 keys desoldered, dismantled and put in a baggy. Since I'm probably never going to fix this keyboard, would you want the power button

Re: [M100] Low power check

Take a look at p. 5-30 in the 8201a Svc Manual, figs. 5-47 & 5-48. On 6/28/18, Kurt McCullum wrote: > I wish I could say it works. but I have two 8201s here. One with a low > battery and one without. Both show 208 when I try > print inp(216) > > It was worth a try. I'd be interested if anyone

Re: [M100] Low power check

I wish I could say it works. but I have two 8201s here. One with a low battery and one without. Both show 208 when I try print inp(216) It was worth a try. I'd be interested if anyone else figures this out. Kurt On Thu, Jun 28, 2018, at 11:53 AM, MikeS wrote: >  > Yeah; how could we have

Re: [M100] LoMem Mod?

Thanks! I'll look into it. Not sure I'll get much use out of it, but it's there if I need to! On Sun, Jun 24, 2018 at 10:23 AM, Stephen Adolph wrote: > The T200 has this capability to hide software below the first Basic > program. It is an alternative to home software. > > The m100 does not

Re: [M100] nn - getting back involved.

The RAM boards show out of stock, Greg > On Jun 27, 2018, at 12:49 PM, Gregory McGill wrote: > > I sell both already assembled and tested on arcadeshopper.com > > > On Wed, Jun 27, 2018 at 9:00 AM Fugu ME100 > wrote: > There are at

Re: [M100] nn - getting back involved.

- Original Message - From: Brian White To: m...@bitchin100.com Sent: Wednesday, June 27, 2018 2:59 PM Subject: Re: [M100] nn - getting back involved. ... > Also, the rearranged pinout for Model 100 main rom is different from the > rearranged pinout for the option rom! ...

Re: [M100] nn - getting back involved.

- Original Message - From: Brian White To: m...@bitchin100.com Sent: Wednesday, June 27, 2018 2:59 PM Subject: Re: [M100] nn - getting back involved. This will get a little confusing because we're talking about both main rom and option rom at the same time, so watch for

Re: [M100] Low power check

Yeah; how could we have missed that /LPS signal all this time... Thanks, Kurt! - Original Message - From: Stephen Adolph To: m...@bitchin100.com Sent: Thursday, June 28, 2018 1:58 PM Subject: Re: [M100] Low power check Wow. Very nice. Learn something new every day.

Re: [M100] Low power check

Thanks Kurt, Away from the 100 at the moment, but I’ll check it to confirm later tonight. -Will On Thu, Jun 28, 2018 at 1:41 PM Kurt McCullum wrote: > Will, > > Found it in the Robert Covington's M100 ports/registers file. Port D0 > (208) is where the low power signal is. The file indicates

Re: [M100] Low power check

Wow. Very nice. Learn something new every day. On Thursday, June 28, 2018, Kurt McCullum wrote: > Will, > > Found it in the Robert Covington's M100 ports/registers file. Port D0 > (208) is where the low power signal is. The file indicates this is the same > for both the 100 and 200. > > PRINT

Re: [M100] Low power check

Will, Found it in the Robert Covington's M100 ports/registers file. Port D0 (208) is where the low power signal is. The file indicates this is the same for both the 100 and 200. PRINT INP(208) That command should give you the status of the power. Bit 7 is the indicator so the value will change

Re: [M100] Low power check

It's actually a INP(216) command not a PEEK(216). I didn't realize that when I first posted. But the memory locations on the 200 would be different than the NEC. So for the NEC, in BASIC the following command would show the value: PRINT INP(216) Kurt On Thu, Jun 28, 2018, at 9:53 AM, William

Re: [M100] Low power check

FYI... I just tried the PEEK (216) on my Model 100 and it returned 85 with both the battery light on and off. -Will On Thu, Jun 28, 2018 at 12:42 PM Kurt McCullum wrote: > That's what I was afraid of. However, I did find something that is worth a > try when I get home tonight. In the NEC 8201

Re: [M100] Low power check

oh, neat. let me know. On Thu, Jun 28, 2018 at 12:42 PM, Kurt McCullum wrote: > That's what I was afraid of. However, I did find something that is worth a > try when I get home tonight. In the NEC 8201 technical manual (yes I read > these things) on page 256, it looks like bit 7 of memory

Re: [M100] Low power check

That's what I was afraid of. However, I did find something that is worth a try when I get home tonight. In the NEC 8201 technical manual (yes I read these things) on page 256, it looks like bit 7 of memory location D8 (216) is set when there is a low power signal. If that is correct, a PEAK(216)

Re: [M100] Low power check

no, I don't think so. there is no A/D function or alarm point that is readable. would have been a good idea. On Thu, Jun 28, 2018 at 12:11 PM, Kurt McCullum wrote: > Is there a PEEK I can do in BASIC to see if the low power light is on. I > would assume that the 100/200/NEC all have

[M100] Low power check

Is there a PEEK I can do in BASIC to see if the low power light is on. I would assume that the 100/200/NEC all have different locations in memory but is this possible? Kurt