PSoC™ 5, 3 & 1 Forum Discussions

I am trying to design some flexible I/O, for example a pin could be configured at runtime to be a input, output, PWM or ADC.  In the pin datasheet it states:

"An analog Pins component may also support digital input or output connections, or both, as well
as bidirectional connections. It is possible to short together digital output and analog signals on
the same pin. This can be useful in some applications; however, it is an advanced topic and
should be used with care."

This seems to indicate this is possible, but when I tried to hook up a port of pins that configured as both analog and digital to an Analog Hardware Multiplexer, I get the following error:

"mpr.M0098:Signal "Port4_0 is expected to connect to an analog pin but instead connect to Port_4(0).  Please fix the connection."

Am I going about this the wrong way?  Is there more documentation about the "advanced topic" of having a pin be both digital and analog?

I have set up a PWM module running at 40khz, and wired the interrupt output to an ISR as shown in the attached file.

The problem is that execution nevert reaches the interrupt handler...

I have called the initialisation functions for the PWM module and I know that the PWM is up and running fine. I have also called <ISR>_Start() which internally calls <ISR>_Enable... Did a single step debug to ensure that these functions are indeed called. The PWM is working fine since I have checked it on a 'scope. Cant figure out what I'm missing... Also, what is to be expected if I tie the Interrupt output of the PWM Block to a digital output pin?

Thanks!

Hello,

I'm in need of some suggestions for this issue. We are currently using the cy8c29866 for a thermocouple reader system.

It does its job great, but we have some issues with protection circuitry involved. The protection circuits we employ are to clamp or block 240vac. The problem is, due to the system using a 2.5bias analog ground, the protection circuits are rendered useless.

Is there a way that the psoc can read into the insamp without this 2.5v bias on the analog in?

Thanks.

PS, we are using the three op amp insamp module @ 48 gain and a del-sig @13bit

Hello,

    Good Morning!

I am doing on Powerline communication using CYCPLC20- 28PVXI. In coding, when i use the function PLT_Start(), its equivalent asm says this function switches the modem to receiver. I want to use modem to transmitt. How can i make the PLT_Start function to start the transmitter?

Hi,

I just bought 5 pieces of CY8CLED16P01-28PVXI and I solder it on my design circuit based on the CY3276 application notes. I implement the PLT user module in PSoC Designer and install on the chip. I use a simple transmitting code given by the example from PLC application notes. However, the chip won't transmit any data out from the FSK_OUT pin and so as the other four new pieces. The following attachment is my sample code. May I know what is the problem?

Thanks and your help is much appreciated.

Regards,

mel

 Hi,

I`m using CY8C27443 and i try to connect microphone and speaker to it. I`ve connected microphone to P01 then i used pga. Pga`s input is set on P01 and i`ve used analog bus which is connected  to P03 where speaker is. But only thing i`ve got is some noise. What could be the reason?? And is it possible that i will get normal voise?

Hi all,

I need to wire up something using timers and counters with the following behaviour:

* Output goes low if the input sees two rising edges occur 20us or less apart.

* Output goes high on any other input edge.

Can anyone suggest how I might do this?

Many thanks in advance.

Hugo Elias

The circuit I have designed to drive the transmit line makes it difficult to use the transmit enable pin.  Could I use the configuration bit to turn off the Analog output buffer inside the chip instead?  Something like this:

ABF_CR0 &= ~ABUF0EN;

ABF_CR0 |= ABUF0EN;

Where would these statements be placed?  I can't seem to find the code that controls the transmit enable.