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years ago...(shh, don't ask...) I'd get caught same way, as MPLAB's default was 'debug'. When I called Microchip, the SW eng was surprised I never used 'debug'...
That's right, in the real world it's ...

when you say you compiled with MPLAB, did you set the 'build configuration' to 'release' ?
You are right: "Release" should have been set. Now the .hex files (generated with Mplab and CCS Co ...

Yes. It was fixed in 5.072.

Understand, 5.066, is over six years old. 5.040, seven. You were using
very old faulty compilers.... Sad

Thanks Ttelmah,
But I tried to use MPLAB 8.92 with ccs 5.11 ...

Hi all,

I tested under ccs compiler v. 5.115, it works!

I have now seen https://www.ccsinfo.com/devices.php?page=versioninfo.
I will try with a compiler from Microchip.
Thanks everyone for all the advice. I think the post can be closed.

I use now another CCS compiler, v. 5040, but RA0 is the same: no signal.

2) dump the listing and confirm that the proper register bits are set (enable and output )

The VREFCON1 register is set by setup_dac(DAC_OUTPUT | DAC_VSS_VDD) to A0.

2) dump the listing and confirm that the proper register bits are set (enable and output )

Thank you temtronic.
I don't use the op-amp as a buffer, I visualize the signal on RA0 with the oscillo ...

I tested with led: led toggle with 650ms period, so the program is in the while(1) loop.

My PICKIT3 is totally disconnected when 18f14k22 is running, I remove the cable from the ICSP connector! MCLR is 1 when uC is running.

Thanks Ttelmah for reply.
CCS Compiler version is 5.066
I run the program under MPLAB v. 8.92 (CCS Compiler) and test it step by step. The program is in the while(1) loop: it does dac_write(i) 32 ti ...

curious..
downloaded the datasheet... 20 pin device, seems DAC1OUT pin is RA0 which is ALSO used as PGD ( programming pin ).

If this is correct, have you disconnected your programmer from the PIC ...

and you have the delay as shown?.
Yes. Now delay is 1000.

Thanks Ttelmah,
I'm using a Hantek DSO4254C oscilloscope, with 1Mohm/20pF probes.
I insert the modification with A0 analog channel and it behaves the same, it does not send a sawtooth signal at the ...

Thank you Ttelmah for reply.
I modified the DAC test but I still have no signal on the analog output.

#include <18F14K22.h>
#use delay(internal = 4MHZ)

void main(void)
& ...