PSoC™ 5, 3 & 1 Forum Discussions

hi happy users of this strange device

For students or schools, if you cannot afford the big kit, have a look at this.

gonzalj.chez-alice.fr/TPpsoc3/TPpsoc3.html

regards jean

I am measuring the change in a 300pF capacator. I have taked precautions to drive the shield with the feedback from my voltage follower. The capacator will change a maximum of 80pF for temperature and fumidity. For test pruproses I am using a 500hz clock through a series resistor(10m) through the 300 pF capacator. I am able to get very good RC curves. I have tried the camparator with and without clock sync.

After my comparator what is the best way to measure the pulse width time? I am trying to achieve 200 to 800 Hertz.

Thank You.

Hi,
i'm playing around with the ADC on the PSOC3, i've got the CY8CKIT-030. My Problem is even if i connect my input GPIO (P4.6) to VSSA, the rawvalue is very rough. It jumps around between bit 30 and bit 40, i expect a more stable value. Is it possible to get the noise smaller, so that it is stable on +-1 bit?
Sure a external voltage reference will help, i will try that, but isnt it possible to get more stability with the internal reference and without a filter?

I'm using:
-resolution: 16 Bit
-conversion mode: 2
-rate 2000sps
-input mode: single
-buffer gain: 1
-buffer mode: rail to rail
-Vref: internal bypassed on P0.3
-clock: internal

my code:

void main()
 {
Initial();

while(forever)
{
ADC_StartConvert();
ADC_IsEndConversion(ADC_WAIT_FOR_RESULT);
Rawdata = ADC_GetResult32();

sprintf(Buffer, "%ld", Rawdata);
UART_PutString (Buffer);
UART_PutCRLF(0x20);
}
}

so i get my rawdata displayed in my terminal.

Thanks

Hello! Chip used CY7C68034. Please tell me how to change the project CY3686FW, that it was possible to receive data from an external device (such as an audio codec or GPS receiver) and record them in memory NAND. Sorry for the translation.

hello,

I am working with a CY8C201A0 chip powered by 5V and i would like to know the maximum electrical specifications in GPIO (configured to drive a LED in my case). I don't understand well the difference between 20mA source curent and 60mA sink current on even and odd ports pins that is specified in the datasheet page 21 (attach file).

If someone can let me know clearly the input/output current in each GPIO and simultaneously in any GPIO (MAX).

I hope i am clear enough, and thanking you in advance for your consideration.

Regards.

 a simple question, I understand the concept of PLDs (programmable logic devices) but how can an analogue block be configured?? I am not asking about how to do it in PSOC creator but rather on the technology that creates the block.

Let me start by giving you some background on my device, my device is battery operated, when the battery is in its turned on when its not its off, I use a RTC to keep track of the amount of time that passes between uses of my device, it has an independent battery to keep the RTC powered. I'm currently using a M41T94MQ6E (RTC with 44B of Ram that communicates through SPI) and a 25AA320A (32K memory storage) for my RTC information storage.

Is it possible to replace all that functionality on the CY8C5568AXI-060? I basically need to know when my device is turned on and how much time passes between the periods where its turned off. I have a small coil cell battery on my board that powers the RTC when the primary battery is not in the device.