Hi Rob, Thank you for posting that. I'll definitely take a look at it.
Regards, Mike On Saturday, November 28, 2020 at 2:04:07 AM UTC-5 [email protected] wrote: > Hi Mike, > > I used a 10-bit DAC with PIC16F1765 in my Digital Controlled Power Supply: > Digital Controlled Linear Power Supply : 6 Steps (with Pictures) - > Instructables > <https://www.instructables.com/Digital-Controlled-Linear-Power-Supply/> > > I used two functions. > > ; Initialize the 10-bit Digital to Analog Converter (DAC) > procedure dac_init() is > ; Enable, right justified, output enable, use VDD as reference, VRef- > to VSS. > DAC1CON0 = 0b1010_0000 ; VDD reference. > dac_set(MIN_DAC_VALUE) ; Output at minimum > end procedure > > ; Write the given value to the 10-bit DAC. > procedure dac_set(word in value) is > DAC1REF = value > DACLD_DAC1LD = TRUE > while DACLD_DAC1LD loop > ; Wait for DAC to complete transfer. > end loop > end procedure > > This was a very fruitful project for JAL since I extracted two JAL > libraries from it, one to control a digital potentiometer and one to write > data into HEF (this PIC does not have EEPROM but HEF instead) 😊 > > Hope this helps. > > Kind regards, > > Rob > > > ------------------------------ > *Van:* 'Mike' via jallib <[email protected]> > *Verzonden:* zaterdag 28 november 2020 03:37 > *Aan:* jallib <[email protected]> > *Onderwerp:* [jallib] PIC16F1778 10-bit DAC, anyone? > > I'm trying to get the 10-bit DAC of the PIC16F1778 working and am not > being successful. Has anyone used this, or similar? I'm scoping the > output pin and getting nothing. Below is my code. Any push in the right > direction is appreciated. > > Regards, > Mike > > > -- > include 16f1778 -- target PICmicro > -- > pragma target clock 8_000_000 -- oscillator frequency > -- > pragma target OSC INTOSC_NOCLKOUT -- internal oscillator > pragma target PLLEN DISABLED -- PLL off > pragma target CLKOUTEN DISABLED -- no clock output > pragma target WDT DISABLED -- watchdog off > pragma target BROWNOUT DISABLED -- no brownout reset > pragma target FCMEN DISABLED -- no clock monitoring > pragma target IESO DISABLED -- no int/ext osc > switching > pragma target LVP DISABLED -- low voltage > programming off > pragma target MCLR INTERNAL -- internal reset > -- > -- > OSCCON_SCS = 0 -- select primary oscillator > OSCCON_IRCF = 0b1110 -- 8 MHz > OSCCON_SPLLEN = FALSE -- software PLL off > -- > enable_digital_io() -- make all pins digital I/O > -- > LATA = 0 > LATB = 0 > LATC = 0 > TRISA = 0 > TRISB = 0 > TRISC = 0 > > DAC1REFL = 0 > DAC1REFH = 0 > DAC1CON0 = 0b1010_0000 -- DAC on and output to the pin > -- > var byte c = 0 > -- > forever loop > for 255 using c loop > DAC1REFL = c > DACLD_DAC1LD = true > _usec_delay(100_000) > end loop > end loop > -- > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jallib/58400326-e940-49be-894a-87edbc767a72n%40googlegroups.com > > <https://groups.google.com/d/msgid/jallib/58400326-e940-49be-894a-87edbc767a72n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "jallib" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jallib/6926468a-b1e4-45c0-8059-ac75880ec625n%40googlegroups.com.
