PSoC™ 5, 3 & 1 Forum Discussions

I'm working with a PSoC 1 evaluation board.

It has only available 2 analog outputs.

More advanced deviced has only 4 analog outputs.

So I think, what matters the analog blocks we have if after all we have a few analog outputs?

Can I use the digital outputs as analog outputs?

Thanks

 Ganesh/ Group,

I am using PSoC Express, a MiniProg and a CY3280 Capsense Development kit/card.

I have been having trouble getting the program (*.HEX) into the chip.

I just read your article about the most common solution to this problem.

I don't even think it was my problem, but I tried P1(5) and P1(7) instead of (0) and (1), for Clk and Dta.

Still, "Unable to locate device".

Any other suggestions?

CD

I input a 6bits_code_min=0dec or 6b_code_max=62dec value into the DAC6 by means WriteStall API and I get unexpected Voutput value.

Theoretically the DAC6 datasheets told us:

Vout=(Vrefhi-AGND)*ACap/FCap+AGND

Taking into account my reference Vdd/2+/-BandGap I must to have:

Vout(max)=3.76V

Vout(min)=2.5V

Instead of this I obtain a more or less a  Vout=3.7 V  and after that the value is going down until reach

aproximattely 2.5V. I put the analog outputs in High Z.

The C code is simple:

#include

"PSoCAPI.h" // PSoC API definitions for all User Modules

}/*while*/ /*main*/

Anyone could tell me what's going on?  Thanks

}

 Dear Forum, 

I'm using a  CY3280-BK1 capsense development kit, and I'm trying to program a CY7C24794.  

I'm using a PSoC MiniProg to plug into the board from the PC and I was using P1(0) and P1(1) for clock and data and that wasn't working, so after reading some of the forum topics, I tried (5) and (7) instead, but that's not doing it.

I get "Unable to Locate Device."

Thanks about the Enoa parameter. The datasheets states:       

ENOA Noise at 1 kHz (Power = Medium, Opamp Bias = High) – 100 – nV/rt-Hz       

But anyway, I introduce  a sinusoid into a PGA follower  (Gain=1) and apart  I monitories the input and output in the First column and I get the image 1, obtaining the expected.       

Input=Output (Port 0_3)       

(Vsin input= 500Hz 1Vpp and 1Voffset)       

When I did the same in the second row I got a noisy sinusoid  output.  The output is equal to the input but the noise is much higher than the specifications told in the datasheet, so I still thinking my part is damaged.       

Image 3 shows the add noise is around 800KHz and 1MHz.

Is damaged my part?

        By the way, I have a RC filter in my Port 0_5  board outout.       

Could it produce the noise?

I have had great experience with the PSoc 1 family. I understand we are still using Beta software for development. The PSoc 3 and PSoc 5 is basicaly not very user friendly. There is very few snippents of code sample in C. I tried to get better than 16 bit accuracy on the Psoc 3. It appears to be a board layout problem.

I wish to continue with PSoc 3 and 5 SDKS. But is not very user friendly at this time. Is there any time in the future when the PSoc 3 and Psoc 5 will look like the Psoc 1 family.

Thanks

Philip