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I received my ARC32 and I must say I like it, this really is a step ahead of everthing else I have used to control servo's and the Studio software is user friendly and looks good.

I am using Studio Version 2.0.0.7 and I have read through the posts here and on Lynxmotion's forum concerning the changes to the Serial commands and I have been using this code to do some testing on a few servo's and works as expected, waits for the data then sets the servo postion and speed then toggles the status LED. I send 5000,250 + CR and I receive Pos1 = 5000, Spd1 = 250 in the terminal window.

I then tried the HSerin with a Label and time out value and send 5000 + CR like this.

I do not receive any data back so I set up the Status LED just as a visual feedback of when the data was received and tried differant time out values but the LED flash rate stays the same I thought with a larger time out value the flash rate would change as the HSerin waits longer for the data does 5000 = 5 secs?.

I also tried some testing with Serin and received some not as expected results here is some code that I was trying one section at a time.


I also tried the Serin with a Time out value and a label but received the same results as before with the HSerin time out test.

I have been through the manuals old and new and I am over looking something simple maybe a push in the right direction would be helpful.

Thanks
John

Hi John,

I believe the new documents for hserin are wrong and we are waiting for an update. The timeout value I believe is in .5us not in ms. so your wait of 5000 is only waiting 2.5ms which is not very long! I believe the serin command is described this way

Kurt

The timing is in half microsecond increments. So if you have some milliseconds interval in mind, multiply that value by 1000 (one thousand times) then multiply by two. Or, simply, multiply by 2000.

So, if you want 500 milliseconds (half a second) for a timeout, multiply 500 by 2000 to arrive at a working value of 100,000.

One second is 1000 milliseconds, so your working value is 1000*1000*2 = 2,000,000.
HTH!

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Thank you for the fast reply's, I have increased the time out value and HSerin is working as expected.

I found this code on Lynxmotion's forum (I changed slightly for my needs) from Acidtech and it works great...


I thought the Serin command worked like this in the past I Bowerred this from the latest manual page 162.


Using this code if I sent 250 + CR from my terminal I should receive Spd1 = 250 back correct? All I receive back is Spd1 = 2.


Thanks
John

Are you sending 250 + CR or are you sending "250" + cr?

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I am sending "250" + CR (ascii codes 50 53 48 13) only differance between the terminal I was using and Terminal 1 in Basic Micro Studio is my terminal sends data on carriage return were Terminal 1 sends data on keypress. I have tried this in the Basic Micro Studio Terminal 1 and Terminal 2.

For this example should I receive the same data back "250" from Serin as I do from HSerin? I Send "250" + Cr (50 53 48 13).
The HSerin returned HW Spd1 = 250
The Serin returned SP Spd1 = 2



Thanks
John

When you use our terminal window does it work correctly? Just getting back 2 from the your test program could indicate there is some garbage between bytes being sent. Also can you add some delay between bytes being sent from your terminal program?

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Basic Micro - Robotic Technology Evolved

I do normally use your terminal as it is already open and ready to go, only when I need to send control characters will I switch terminals.

Using your Terminal the HSerin example works as expected, the Serin example will immediately respond with SP Spd1 = 2 at the first key press 2. I will continue testing with your terminal only to eliminate any possibility that the terminal program I am using maybe at fault.

Thanks
John

If the serin command is returning immediately after you press "2" then it must be seeing another non-numeric charcater coming right after it(eg garbage/noise). Do you have a scope? Also are you using the USB port on the ARC32?

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Basic Micro - Robotic Technology Evolved

Sending "on keypress" vs CR is actually quite a bit different! Also affects how you write your buffered (if it is) I/O.

I use a variety of terminal programs. T2, DockLight, and LynxTerm all come in handy. I really have a hard time trying to set up a particular WiFi module over it's serial "back door".

Alan KM6VV

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I tried the USB Port with the same results the Serin example will immediately respond with Spd1 = 2 at the first key press 2 using your Terminal. I do have a scope but I do not have the software to pull the captured data from it.


I tried this example on a couple sets of ports and captured some data with a logic analyzer.

Please email me with a bug report. I'll run a test on it. nathan@basicmicro.com

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Email sent.

Thanks
John