Search found 7 matches

by Roberto Serra
Tue Feb 02, 2010 3:45 pm
Forum: Flowcode V4
Topic: Help with SPI Legacy
Replies: 7
Views: 4854

Re: Help with SPI Legacy

I think there was a miss-undertanding, the program work only in simulation, the real problem is when I program the PIC;

in this case it don't work.

can someone sugest me hypothesis?
by Roberto Serra
Thu Jan 28, 2010 3:55 pm
Forum: Flowcode V4
Topic: Help with SPI Legacy
Replies: 7
Views: 4854

Re: Help with SPI Legacy

ok, understand.... but ......

why my do not work??

I don't see the characters transit from PIC to ISD....

I attached my last file.....
by Roberto Serra
Wed Jan 27, 2010 11:25 am
Forum: Flowcode V4
Topic: Help with SPI Legacy
Replies: 7
Views: 4854

Re: Help with SPI Legacy

Thanks for your answare, I search somethink about bus seep on the datasheet but I don find anythink...

ISD4002 datasheet is here:
http://pdf1.alldatasheet.com/datasheet-pdf/view/82452/ETC/ISD4002.html
PIC18F2520 datasheet is here:
http://pdf1.alldatasheet.com/datasheet-pdf/view/112663/MICROCHIP ...
by Roberto Serra
Wed Jan 13, 2010 10:17 am
Forum: Flowcode V4
Topic: Help with SPI Legacy
Replies: 7
Views: 4854

Re: Help with SPI Legacy

SS it must be set to zero and it's ok;
RAC it's a pin for complex operation that I don't use;
INT is a pin for the interrupt.... and is used for the answare of the request sent, but it doesn't change state, so I think that the requests are not recived.....
can the problem be in the timing of the ...
by Roberto Serra
Tue Jan 12, 2010 7:24 am
Forum: Flowcode V4
Topic: Help with SPI Legacy
Replies: 7
Views: 4854

Help with SPI Legacy

Hello,
I'm working with a PIC18F2520 and a ISD4002(Single-Chip Voice Record/Playback Device);
they use the SPI protocol (MISO, MOSI, SCLK, SS, INT, RAC) for ISD and (SDA, SDO, SCK/SCL, SS, INT0, RC0) for PIC.

At the moment my test program is simple, press a button, PIC send 2 byte for the REC ...
by Roberto Serra
Thu Dec 10, 2009 8:54 am
Forum: Flowcode V4
Topic: RS232 doesn't work me well
Replies: 3
Views: 3235

Re: RS232 doesn't work me well

Hello, I follow your suggestion.
RS232 is set to 9600 and the HyperTerminal too.
The transmission was recived but not always was good.
I try to change the boud rate with a little difference (9595-9605) but the best results are with 9600.
For the clock I'm using a 10MHz quartz oscillator, without PLL ...
by Roberto Serra
Wed Dec 09, 2009 8:06 am
Forum: Flowcode V4
Topic: RS232 doesn't work me well
Replies: 3
Views: 3235

RS232 doesn't work me well

I, my name is Roberto,

this is the first time I write in a forum, so sorry if this is the second time that someone ask help fot the same problem, but I looked in the Historical event list and Ididn't find the answare for my question...


I'm using Flowcode 4.2.3.58 and a pic18F6722.
I built all the ...