Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-09 Thread Dargar
Ahh! I see! Well, that removes the danger of missinterpretation at the cost of increased bandwidth as you say. Sampling only a couple of times a second means that the bandwidth wont be a problem in and of itself, however, we are running the PIC controller on at a very low clock rate (32.kHz) and t

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-09 Thread Erik
Dargar <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>... > Hu. Interesting. > The biggest disadvantage I can see with this is that it feels more > complex. I'm in the process of learning and I feel like it is easier > to "understand" what I'm doing if I use a measure-identifier.

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-08 Thread Dargar
Hu. Interesting. The biggest disadvantage I can see with this is that it feels more complex. I'm in the process of learning and I feel like it is easier to "understand" what I'm doing if I use a measure-identifier. I see that having a certain telegram format where the second data is, say, T2,

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-08 Thread Erik
> > The nano satellite will "talk" on RS-232 9600 baud and since I'm > programming the PIC MCU I can make up my own protocol. > > I'm thinking something like: > Groundstation sends this: ?Temperature1 > And the satellite then replies: !Temperature1[Data]EndofData > > I will have 10 different pro

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-07 Thread Dargar
Thank you Brian Powell! Together with Greg McKaskle you have provided tremendous help. I have figured out the star system thing, and have upgraded you both to four stars since all your replies taken into consideration makes it a four star from my point of view, even if you hadn't managed to get "s

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-07 Thread Dargar
You cant edit messages? Oh well. I forgot to answer your question Brian and the answer is 10 bits of data/request, so by having at least 3 characters, the data can never be equal to the header or footer. :) To save on bandwidth I will probably cut it down to 3 characters for the final implementat

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-05 Thread Brian Powell
Before I forget to ask, will you just be reading back individual values, or will you get several values for any probes? I.e., will you ever get something like this... !Temp1987654321EndOfData (where "98" is the first point of 16-bits, "76" the next, etc.) or will it always just be a single point

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-05 Thread Dargar
I'm sorry Brian, but the "rate this answer" doesn't show on your latest reply? As for the query thing, you're right, it doesn't make sense to be able to do both I guess. So either I'll have the computer request each data by sending "?Temp1" requests and listen for the replies, or else I will h

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-04 Thread Brian Powell
So it sounds like you want to send back a sequence of two-byte binary data samples. Thus, you'll use the Type Cast function. (When I talked about ASCII, I meant that encoded the value "142" as three ASCII characters, '1', '4' and '2'. It sounds like you are not going to encode your data this way

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-04 Thread Dargar
Hi Brian and thanks for your feedback. A few comments: I'm "tagging" the data, because I want to be able to sample and send in a loop from the satellite side, without querying for the data. But I also want to be able to query specifically for data manually. I don't know what I will end up doing i

Re: Filtering out and sending data to the correct graph depending on data identifier

2004-02-04 Thread Brian Powell
Regarding your string parsing... Maybe I don't understand your protocol, but it looks to me like it's just a simple query/response protocol. So I'm not sure what you mean when you talk about a continuous stream of data. It seems like you'd just send "?Temperature1\n" and immediately do a VISA Re

Filtering out and sending data to the correct graph depending on data identifier

2004-02-03 Thread Dargar
Hi! I'm a student and I'm working with LabView 7 for the first time. I'm looking for tutorials or hints from you on how to solve the following problem: I have managed to set up serial comm. so I get a string, I can log data to a file and I can show the raw data in a text display.. now.. I'm talkin