P0 is the A/D input, and is conencted to the pot (R7) wiper on J7,
pin 4. Thats to allow varying the pot and transmitting the A/D result of
the pot wiper voltage via the UART.
UART is just connected to P2 and P2
Your question is seems difficult to answer but.
Have you learn about Electronics, Signal processing?
Every signal need to handle step by step.
For this example, There are signal and modules,
Each module has each role.
A signal is the voltage of that get from VR.
First step is PGA due to amplify the signal.
Next is ADC, DelSig that convert analog voltage into digital value.
The digital value(it mean voltage of VR) can transfer by UART to the PC, etc.
The analog value(VR voltage) can't transfer by UART directly,
This is a reason of your question why.
Are you able to get something from this?
Best way to understand that is
To be work with this example, and Measure signal step by step,
And finally accept signal by the PC.
That is I guess. Feel free ask again.
@PSoC73: I apologize for not responding sooner. I had not realised that it was just an instruction pertaining to hardware connections at that time. Thank you anyway for replying.
Hi every body! Help me!!!
I have a prolem when PSoC conect to PC via RS232 circuit (UART).
- PSoC recieve data from PC send (char,string...).
- If PSoC receive character 'a', turn on led; else turn off led.
Currently, hardware is fine. But code not work as i need!
I checked configuration PSoC, code of my project.
I upload my project for every body.
Can you help me, please?
I do this project because i will do project:
-P0.4 receive data (char, string...) from pC.
-P0.5 forward data that P0.4 received to PC.
Sorry! My project here.
Just a check, you have a RS232 transceiver connected to your PSOC
to develop RS232 levels for the PC serial interface ?
Also I see you are driving LED by setting port to high, implying LED wired from Vss to
a series R to pin. The pin cannot source as much current as sink, better you connect LED
to Vdd to series R to port, and turn it on driving pin to "0", Vss.
About RS232 circuit which i used: it is good because i coded a example to test.
I'm using a voltage-level shifter between PC-Tx and PSoC-Rx lines by IC MAX232.
PC <->USB to COM <->RS232 circuit (using MAX232)<->PSoC CY8C24123A.
- P0.4 (RX of PSoC) connect pin 12 max232.
- P0.5 (TX of PSoC) connect pin 11 max232.
It is not a good idea to have the LED on the same port as the UART when you are writing to the data register!!!
Better use an LED-component which will use a shgadow-register internally.
I will try connect led to another pin (not in PORT0), conect to PORT1 (P1.1 or P1.0, because I'm using PSoC CY8C24123A).
Can you send a project(communication between PSoC1 and PC, UART) for me if you had, please?
Many thanks for your help!
On the opening page of PSOC designer is a link, ~ 1/2 way down page, "Launch
Example Browser", and there are several UART projects you can try out/modify.