PSoC™ 5, 3 & 1 Forum Discussions

 Hi,

My requirement is to output data in microseconds, and I am using many timer interrupts to achieve it in my code. The result is unexpected jitters in the o/p. It's definately not a good approach to have implementation inside ISR's, however i cannot think of anything else to achieve this timing. Any suggestions ??

Note : The max tolerance allowed in the system is 2us. (Simple function execution take 1us)

HW : PSOC5LP, Creator 3.0

Screenshot : 5 timers are being used, Timer_Period_0 works fine, but Timer_Period_1 has varying intervals of 496, 504, 496, 504. I am not able to understand this behavior. Any help will be highly appreciated.

I found following code in forums

It's a code for filtering process

can any body explaing any line of this code?

I want to give input from psoc5lp's input pin to DFB but I think in this code inputs are fixed in data ramA

I attached the code

 The PSoC 3 CY8C38 Family Datasheet says:

I have a project that needs to output a 125 kHz signal, modulated by 2400 Baud data stream.

Before I reort to bit-bashing the application, I thought I would see if there might be a simpler way to do this uing internal components. 

The physical output needs to have the 125 kHz ASK modulated waveform appearing in in a push-pull fashion on 2 pins (one pin is high whiel other is low. This is ok, I can use a NOT gate for second pin.

When the system is not sending data, I need an ENABLE output.

I was hoping I could have an enable function internally that set a 125 kHz generator of some sort running (clock/PWM ?)

as well as the enable signal appearing on a digital output. The generator output would appear at 2 pins when enabled and producce hi/low transitions at 125 kHz (one pin will produce high/low and other low/high).

Then some way of applying a stream of Data (2400 Baud) to modulate the generator on and off.

Any ideas much appreciated

thsnks

I "m using Psoc1 CY8C28452 device . Everything complied level as long as used digital blocks. But when use any analog user module and write to compile with any one instruction from its datasheet I get a message that "undefined function". Can anybody help?

 I am working with PSOC 3, and I am using internal EEprom block that I can scan serial number to.  

What I would like to achieve is that when I down load a hex file via PSOC programmer, I would like to get prompted to scan a serial number.  Does any one have an idea?

Thanks!

I found following code in forums

It's a code for filtering process

can any bode explaing any line of this code?

I want to give input from psoc5lp's input pin to DFB but I think in this code inputs are fixed in data ramA

I attached the code

I have an unusual problem with reading the correct value from the CyResetStatus variable. I start the watchdog and then delay much longer than the alloted time. My system resets and I place a breakpoint on the first line in 'main'. I have a bootloader timeout of 2 seconds, which I assume is called but then resets the micro after the timeout is exceeded and places the program counter back to the application where my breakpoint is at. 

I have read several docs that point me to using this variable, but the reset status variable always returns 0xA0? The top most bit is being set in the bootloader  I think, but the watchdog timeout bit is never being set. Any ideas?

Thanks

I'm working on a project where I'd like to have a counter increment with a base other than 1, i.e.:

 A = A+Base

So far I've used a PulseConverter and TFF to convert the single pulse to Base pulses into a Counter UDB component, which sort of works, but of course takes Base clock cycles to increment.

Any better solutions?

I'm currently looking at the UDB Editor to see if I can make one there directly.

thanks,

A.