DSPIC30F4012 v230 Source Code

[6666]

Andrew is this what you are looking for ?
and I think you have to use the pickit2 software to use UART function

Found it

If you are only burning the hex files and want to use the inbuilt UART tool ( serial comms ) to talk to the UNIP chip ( saves wiring up an LCD ) get the pickit software here ....

http://ww1.microchip.com/downloads/e...0Setup%20A.zip

[6666]

Hi All
got myself a AUTHENTIC Microchip™ PICkit™ 2 USB Programmer. Part # PG164120

will see what happens now with these 4012's

[moscadondres]

Thank you for reply,my work is wrong i must begin again,i'll tell you,can you tell me the characteristic of FS18G,best regards.

[mickstv]

Thank you for reply,my work is wrong i must begin again,i'll tell you,can you tell me the characteristic of FS18G,best regards.

I would be guessing the spelling is wrong, but if you change it to SF18G you'll find a result in google.


http://www.google.com/url?q=http://w...ahDclxCWbhgV3g


EDIT I'm just using 1N4007 at the moment

Mick

[6666]

Finally some success in REPROGRAMMING these 4012's

[6666]

Would anybody have a picture of the input signal that goes to pin 5 which is the ADC input ?

thanks
6666

[mickstv]

Would anybody have a picture of the input signal that goes to pin 5 which is the ADC input ?

thanks
6666

Hi 6666, I haven't got that far yet but I do remember some info in another thread. I would be guessing 2.5 volts as 0 because from memory the display shows +/-2.5

The analogue IN can accept a voltage from 0 to 5 volts and is approximately 17 bit accurate ( yes 17 real bits ..... ) The analogue input expects to see a signal that consists of a relatively stable base voltage that varies as targets are passed over ... so it is a motion detector.

http://www.geotech1.com/forums/showp...6&postcount=36

[6666]

Hi 6666, I haven't got that far yet but I do remember some info in another thread. I would be guessing 2.5 volts as 0 because from memory the display shows +/-2.5


http://www.geotech1.com/forums/showp...6&postcount=36

Thanks Mick
have copied the info on the linked page
I have 4 4012's programmed now
there is some problem with the ISCP adapter I bought
the simple rs232 works 100% when you try to reprogram
I have written to the manufacture
cheers

[moodz]

Would anybody have a picture of the input signal that goes to pin 5 which is the ADC input ?

thanks
6666

The "No target" voltage to the ADC input can be anywhwere from 0 to 5 volts ... however somewhere between 1 and 4 volts gives you some headroom for the signal to move up or down ( if descrim is required then the voltage might move up for ferrous and down for non ferrous ).

The input voltage to the ADC must already have been filtered and ground balanced.

moodz

[hdphilip]

moodz on a pcb

hello,

here's a few pictures of my project so far...

i used a pickit 3 to program the devices. in programing the chips, i found that becuse the
code protect bit is set, the Verify function will display an error!!!!

example:

Address: 00000000 Expected Value: 00040100 Received Value: 00000000
Verify failed

The fact that the Received Value has changed from the eprom blank state indicated
the chip is programed!

Also, another important fact!

i was able to program the chip on the power supply by the pickit 3,
HOWEVER for the cicuirt to operate, IT MUST HAVE A GOOD 5 VOLT SOURCE.


Philip

[6666]

Good work Philip

[hdphilip]

i did have to increase the supply to 5.2 volts to keep the dspic locking up.. this held true on the 4011 also....

[6666]

Hi
I have had a 4012 running for about 1 hour with no LCD connected
still was pulsing ok
I see on the other thread your uC is drawing 250 ma
maybe moodz could think about reducing the clocking a bit, for a xtal that's easy to get
(more calculations )
or we need a switch to turn off the lcd

[hdphilip]

6666

I'm thinking he's trying to get everything possible from the dspic's so I'm going to add a resistor to the ground of the 7805 just to get the added .2 volts, easy fix.

next item to build is a front end, going to make a board for that too.


philip

[6666]

Thats an easy fix
I am just thinking of being out in the field
and battery life
will be interested in your front end
any clue as to which way you will go ?