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Old 10th May 2013, 12:40 PM   #2751
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Quote:
Originally Posted by iancanada View Post
If it is possible, try to monitor the battery voltage by a passive voltage meter to avoid any damage caused by over discharge.
I found a small and cool looking voltmeter HERE.

Great to integrate in a front panel.

What do you think...
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Old 10th May 2013, 12:46 PM   #2752
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Hi Ian

while still trying hard to understand your i570 protocol for the Arduino code, I am trying to verify the communication port of the i570 is working. I connected it to the RS232 port of my PC and use hyper-terminal to monitor its output but see nothing.

Could you advise the comment in ASCII for requesting the sampling frequency?
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Old 10th May 2013, 01:35 PM   #2753
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Originally Posted by dvb-projekt View Post
I found a small and cool looking voltmeter HERE.

Great to integrate in a front panel.

What do you think...
not passive and fullscale is 200mV, so you will need to add something to accurately attenuate the voltage to feed to it. looks cool though ...

my god its expensive!

Last edited by qusp; 10th May 2013 at 01:37 PM.
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Old 10th May 2013, 01:41 PM   #2754
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Quote:
Originally Posted by bigpandahk View Post
Hi Ian

while still trying hard to understand your i570 protocol for the Arduino code, I am trying to verify the communication port of the i570 is working. I connected it to the RS232 port of my PC and use hyper-terminal to monitor its output but see nothing.

Could you advise the comment in ASCII for requesting the sampling frequency?
The protocol doesnt allow that.


The protocol send event data whenever the fifo has a change.

Change the fifo input while you read the serial port, compare what you receive with the information Ian has given. I don't think it is fair for Ian to be answering these questions.
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Old 10th May 2013, 02:01 PM   #2755
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When I connect the Arduino to the i570, the i570 doesn't select the correct clock for the BIII. Normally, the three LEDs for Fs shall be on when playing music. With the Arduino connected, only the 512 is ON. No lock on BIII.
If I connect it to the PC RS232 port, it keep on sending some data and all the LED for the MCLK flashing. Also no lock.
Thanks for your advise, I will try some other method to see if I can solve the problem.
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Old 10th May 2013, 04:45 PM   #2756
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Quote:
Originally Posted by bigpandahk View Post
Hi Ian

I am trying to read the sampling frequency from i570 and display it on GLCD. Is there any simple instruction to do it? I don't understand how to use your code.
Hi bigpandahk,

I would suggest you first trying to program your controller to listen to the message sent from Si570 clock board.

Once you get to know what its talking about, it will be very easy for you to figure out how to display and control it.

The protocol I gave was originally from Si570 driver source code, you can use them directly in your C/C++ code by removing the //

Ian
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Old 10th May 2013, 04:58 PM   #2757
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Default Battery Voltage Monitor

Simple Above/Below voltage monitor:
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Old 10th May 2013, 10:49 PM   #2758
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Quote:
Originally Posted by dvb-projekt View Post
I found a small and cool looking voltmeter HERE.

Great to integrate in a front panel.

What do you think...
Yes, it looks cool. With a couple of hundreds K resistors and internal battery/power supply, I don't think it will introduce anything.

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Old 10th May 2013, 10:51 PM   #2759
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Quote:
Originally Posted by Avro Arrow View Post
Simple Above/Below voltage monitor:
That's another nice solution. Very easy to implement. All components a passive, it's worth to give a try.

Ian
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Old 10th May 2013, 11:31 PM   #2760
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Quote:
Originally Posted by iancanada View Post
Hi bigpandahk,

I would suggest you first trying to program your controller to listen to the message sent from Si570 clock board.

Once you get to know what its talking about, it will be very easy for you to figure out how to display and control it.

The protocol I gave was originally from Si570 driver source code, you can use them directly in your C/C++ code by removing the //

Ian
Thanks Ian

That's what I've done. Will learn more from the WEB and try.
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