PSoC™ 5, 3 & 1 Forum Discussions
Frequency measurement can be done in PSoC in 2 ways:
1. Capture method for measuring the frequency works only for lower frequencies (< 50 KHz (depends on CPU clock)) because as the time-period of the signal becomes comparable to that of CPU clock , the program flow gets stuck in ISR routine due interrupt within an interrupt.
2. So, for measuring high frequencies use a timer of tick 1 sec and count the pulses using a counter.
Hello,
This post is regarding issues arising due to multiple GPIO Interrupts ocuuring from different GPIO pins in PSoC 1.
In one of the projects, there are 3 GPIO pins of PSoC 1 are used to recieve the output of three different sensors. The interrupts of each GPIO Pin is enabled . Once the interrupt from one of the GPIO pin is received the interrupts from other pins are not getting detected.
Note: The output of the sensor initially remains high. It goes low when ever there is a event and remains there untill the event completes and then it becomes high. The interrupt type for GPIO pin is selected as falling edge. The events on the 3 sensors occur sequentially one after the another.
Any Suggestions on why this issue is arising and how to solve the issue?
Show LessAntonio De Lima Fernandes, one of our application engineers, just wrote a great app note on how to trim you IMO and ILO to get more accuracy. Take a look at the short post in our blog for more information.
Mark
Show LessAntonio De Lima Fernandes, one of our application engineers, just wrote a great app note on how to trim you IMO and ILO to get more accuracy. Take a look at the short post in our blog for more information.
Mark
Show LessI am using the cy8c20546-24pvxi for touch sensing on my keyboard. even after implementing a Watchdog my psoc is hanging at unpredictable times. Kindly leme know asap what the issue can be. Is thr any possibility that the watchdog timer also hangs if the internal ILO/IMO hangs? It is urgent. Expecting a reply asap.
Gee
Show LessHello ALL
How to conclude wheteher the device is programmed or not....i am talking PSoC lying on the floor and want to check whether it is programmed or not
Show LessHi ppl,
A very wondeful app note on digital deisgn. A must read for digital designers on PSoC.
http://www.cypress.com/?docID=38749.
Show Less