PSoC™ 5, 3 & 1 Forum Discussions

cy3280-srm is a radial slider kit, it has some related project with different chips, such as 20x34, 21x34, 20x66, 24x96.

This is another example project working with 22x45 and SRM kit.

Somebody may need it.

 Hello, 

Looking at the performance of the AMux(8->1) and DelSig ADC. The project seems to work but the channels influence each other. 

My code looks like this: 

 countMA = 0; // rests Moving average count

        AMux_1_Init();

        AMux_1_Select(0);

                volts = ADC_CountsTo_mVolts( ADC_GetResult32() );

        AMux_1_Init();

        AMux_1_Select(1);

               volts1 = ADC_CountsTo_mVolts( ADC_GetResult32() );

....

Up to 8th input. 

If I read the same pin on 8 - always set AMux_1_Select(1) it seems stable, but when I switch I get strange results. 

I think I need to reset the ADC when I switch pin inputs or reset the buffers? ( trying to do this with AMux_1_Init()  )

Any ideas to test? 

Thank you! 

Hi, 

when I try to program a code example on multifunction expansion card with FTSK programmer, I always receive the next programming log:

 Hello,

 I know that the PSoc5 is a USB device which is why I'm looking to use the MAX3421E as the USB host via a SPI interface.

My question is whether anyone else has done this and can point me to some of the necessary driver code to control the MAX3421.

Ideally I want to use HID and Isochronous transfers (it is to drive headphones that may or may not have volume control buttons etc.) but I'd rather not start from scratch.

I have seen code for Arduinos and soem linux implementaitons that cna be used with the MAX3421 but I was wondering if anyin e had ported these or other code the the PSoc5 and could give me a few pointers or a head start?

Thanks

Susan

  I was able to get a 12 bit dac working with the PSOC.  Painful, but here is how it worked:

   I connected up to a 12 bit dac from the PSoC using the SPI Master unit.

   The 12 bit dac requires the Load signal to go low and then high when the data should be loaded.  You can only send 12 bits at a time to the DAC, 16 bits does not work.

   I was able to accomplish this by connecting tx_interrupt through a NOT gate to a pin.  I then set the "Interrupt on Byte/Word transfer Complete" checkbox.

   I then set the bits to send to 12 bits.

   With this, you do a write to the transmit registe to get things primed.

uint16 *sp=sineBuffer;

 SPI_Master_WriteTxData(sp[index++]);

   Then, in  a forever loop, using a sine wave buffer for a test, (the buffer is placed in pointer sp):

for(;;)
    {
        /* Place your application code here. */
        if (SPI_Master_ReadTxStatus() & SPI_Master_STS_SPI_DONE) {
            SPI_Master_WriteTxData(sp[index++]);
            if (index >7 ) {
                index=0;
                sp=sineBuffer;
            }
        }
       
    }

   Now the interesting part.  DMA does not appear to work with a 12 bit SPI, unless I'm missing something. I suppose you could write two 8 bit bytes at incrementing addresses, but the DMA unit does not appear to want to do this unless it is always incrementing, and we only want to write to the transmit register.

Hi, 

I want to change the duty cycle of manchester encoded data(8 bits using SPIM). I am giving this data to clock the PWM component. But not getting the correct output. 

Please share some ideas to acheive this. 

Thanks