PSoC™ 5, 3 & 1 Forum Discussions
Hello,
In one of my projects, I am using GPIO pins to drive a ULN2003 Darlington transistor array. The transistor array drives some LED lamps and two relay coils.
When power is first applied to the circuit, all the lamps and the relays come on for about 100mS then go into their initial states (low for all in this case).
Is there any way I can force the GPIO pins to be low even on power up? If it requires a hardware change, I am open to that because I need to do a board spin anyway.
I do not know if the paragraph below is relevent, but...
My digital power supply uses 3.3 volts and the analog system uses 5 volts (along with VDDIO3 and VDDIO0). The relays switch mains voltage so I do not want interment turn on. The power supply for the system uses 3 linear regulators. A 24 volt power transformer feeds a 12 volt regulator. The 12 volt power feeds the LEDs and relay coils which are switched by the ULN2003 chip. The 12 volt regulator feeds a 5 volt and 3.3 volt regulator for the logic digital and analog power supplies. There are two 6800uF capacitors on the power input to allow for delayed power off.
Show LessMy psoc5lp's pins supplied by VDDIO3 cannot output.But their input function is notmal. I have checked the pins of VDDIO3 and VSSD. It's voltage is normal. I want to find a solution.
Show LessHi friends
I'm working with CY8KIT-050 development board (CY8C5868AXI-LP035 device) I want to make the PLL output frequency of 80 MHz. But I'm getting an error.
Please see the image
What could be the problem?
Show LessI am using a psoc5lp.The Creator cannot recognize this device. When programming psoc5lp,I see a error“this device was recognized,but PSoC Creator does not support using it at this time”.
Show LessHello,
I am working on a GPS clock using CY8CKIT-059. I have decided to use RTC block because of its DST support. I see in auto-generated code that it has a precious pulse-per-second ISR for internal purposes. Is there any way to get this PPS signal, to execute some code every second?
One easy solution would be to place clock display update to main function - to uninterrupted code, but I would like to keep this for better purposes than updating display many times per second. It would be statically driven nixie tubes. Also I don't want to put sleep just to lower update rate.
Thanks for reply,
Stanislav
Show LessHello,
I want to create an USB device with two virtual COM ports and one custom interface. Since a VCP consumes three endpoints, two endpoints will remain for the custom interface.
I want to control the custom interface by CYUSB.DLL which is part of the SuiteUSB package.
So, my question is if anybody can help how to setup the USB_FS component the right way and how to create the correct INF file.
Regards,
Ralf
Show LessHello i am coding about usb uart component in psoc5lp. I have a proplem: kit psoc5lp not conneted with PC (window 7 32 bit).This is image about my flase.
Show LessHello Everyone,
I hav configured two gpio pins from Psoc3 one for Reset and another for Power On likewise in the below attached i wrote my simple main inorder to reset the logic actually my device will turn on only if the Reset pin held low for few seconds and then go back to high so inorder to achieve this logic i have intially set the high for RESET pin and then it will be high for few seconds then it should go (RESET pin) to logic low for 2 seconds after that it should go again logic high
so finally which brings hte logic of reset the device and it will restart again but my problem is above logic is not working as expected coudl anyone please suggest me what mistake did i made in the below code or please suggest me some alternative ways to implement the logic in PSOC3
int main()
{
Switch_int_Start();
isr_100ms_Start();
CyGlobalIntEnable;
RESET_Write(1);
PWR_ON_Write(0);
Enable_3V8_Write(0);
CyDelay(5000);
RESET_Write(0);
CyDelay(2000);
RESET_Write(1);
}
Any help would be greatly aprreciated
Thank you
prabhu
Show LessHello,
I'm attempting to verify my PSoC 5LP Bootloader/Bootloadable firmware using the CY8CKIT-059 Prototyping Kit. I'm using the Host UART Bootloader program launched via the PSoC 3.3 Creator's Tool drop-down. The download process appears to work fine, but the downloaded application is not being executed automatically after the download completes. If I reset the board manually, the newly downloaded application executes as expected. My concern is that we are planning to include the host bootloader software in our application, and we would prefer that the download process completes without user intervention. Can someone help me determine if I am doing something wrong, or give me some advice as to how to make this process automatic?
Thanks.
Show LessI use MiniProg3 + PSoC programmer to program my device board (CY8C 20336A), the firmware can be "burned", the programmer indicate it "success", but when I "read" by programmer, it display "xx xx xx ... ". What's wrong with me? I try to "erase all" and read, it display "00 00 00 ...", so it seams work. BTW, I use "power cycle" + "ISSP" + "3.3v".
Show Less