High Performance WM8741 Upsampling DAC New Version build thread (show 'n tell too) - Page 14 - diyAudio
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Old 26th March 2012, 04:32 AM   #131
TheGimp is offline TheGimp  United States
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I'm trying to get the Arduino up and running. while I wait to get the remaining ICs I need, and get a data source running. The SONY CWM460 I was hoping to use is rife with problems.

I guess I'm too old school, but I keep trying to set up an environment and batch files.
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Old 26th March 2012, 11:40 AM   #132
Turbon is offline Turbon  Sweden
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I wonder what version of the Aurdino environment this is tested on? Aurdino 1.0 just creates a long log file of errors trying to verify/compile...

Anyone who succeeded? I will crosspost this to the GB area.

Brgds
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Old 27th March 2012, 02:10 PM   #133
Turbon is offline Turbon  Sweden
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Default Connected the DAC to one of my O2's

The first one internally coupled sounded thin and needs a buffer in between.

Brgds
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File Type: jpg INTERNAL_O2_DAC.JPG (546.3 KB, 236 views)
File Type: jpg LINE_O2_DAC.JPG (562.1 KB, 207 views)
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Old 27th March 2012, 04:26 PM   #134
tcpoint is offline tcpoint  United States
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Post the log file of errors.
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Old 27th March 2012, 04:44 PM   #135
Turbon is offline Turbon  Sweden
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Quote:
Originally Posted by tcpoint View Post
Post the log file of errors.
Yes, I will have to revert to the original files first. The ones I am working with now ain't good anymore...

Brgds
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Old 27th March 2012, 05:14 PM   #136
TheGimp is offline TheGimp  United States
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I"m running Arduino 1.0 zip date 11/28/2011 7:33pm.

I think I have it up and running as I can talk to the Uno, and run a simple file for a test.

I've got the file "Arduino UNO Code.txt" dated 1/15/2012 7:05pm, is this what you are building with?

Since there is no revision number in the code it is difficult to tell for sure.

Turbon, when you post a file, please put a revision number in it and your name as editor so we can track the file and be sure we all are working on the same file.

Thanks.

Sven
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Old 27th March 2012, 05:52 PM   #137
Turbon is offline Turbon  Sweden
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OK, reverting to basics.

I run Aurdino 1.0 and compiled and loaded the following:

---
/*
Blink
Turns on an LED on for two seconds, then off for half a second, repeatedly.

This example code is in the public domain.
*/
void setup() {
// initialize the digital pin as an output.
// Pin 13 has an LED connected on most Arduino boards:
pinMode(13, OUTPUT);
}
void loop() {
digitalWrite(13, HIGH); // set the LED on
delay(2000); // wait for 2 seconds
digitalWrite(13, LOW); // set the LED off
delay(500); // wait for half a second
}
---

Works like charm.

Now load the LCD library as stated in the aurdino code from heartwinters email and try to compile the code - bang crash... Does not compile and there I am...

Brgds
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Old 28th March 2012, 01:58 AM   #138
TheGimp is offline TheGimp  United States
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You are doing better than me. I've got a parallel LCD/keyboard combo and tried to compile and download the "Hello World" sketch.

I can't get past

Binary sketch size: 2520 bytes (of a 32256 byte maximum)
avrdude: stk500_getsync(): not in sync: resp=0x00

I've got a serial LCD also but haven't found the spi driver yet.
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Old 28th March 2012, 07:13 PM   #139
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I got a question.

I really like the O2, but there is some modification I would like:

On the front of the amp, I would like the powerswitch to be, volume knob and one headphone output.

On the back of the amp, I would like the power connection, audio input and another headphone output(so when I'm gonna use the same headphone, I would rather connect it back than the front.

Like this; objective2 headphone amp - Hardware Canucks

Anyone done that before? I've tried to search and see if someone could make one for me, but without luck.
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Old 28th March 2012, 09:52 PM   #140
Turbon is offline Turbon  Sweden
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Hmmm, your question everlong should be asked in the O2 thread...

But anyway, the link you referred to shows the larger enclosure with the pcb somewhere near the top. The builder has then done some internal wiring to the new connectors at the bottom of the box. As I see it you better connect one pair of headphones at the time - otherwise they will interfere with the other in more than one way... But ask your question in the O2 thread - a lot of cunning people there.

Brgds
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