PSoC™ 4 Forum Discussions

I tried to do the ota according to the documents of the laboratory that i have and let here but these are focused on BLE as well as its libraries however I wish to do it through UART Could help me with this I send my workspace so that they could guide me how I must continue to achieve this.

First off, I would like to say I am new here and my apologies if I am posting this in the wrong place.

So quick back story, I bought 2 CY8CKIT-049-42xx PSoC 4 Prototyping Kits and they just arrived in the mail.  I have never used PSoC or any Cypress offerings before.  So far I have built my own project and got the LED on board to blink however fast I want and with whatever duty cycle I choose to get familiarized with the PSoC Creator 3.1.  (So far I love it, it took me 30 mins of just reading the kit guide to get started from start to finish of my own project.  Very well documented, anyone with some C experience can probably teach themselves this.  Excellent, 11/10, would recommend)

After that I tried to get my wireless PS2 Controllers running on this (I have already run them on the MSP430 from TI).  I love the SPI Master block so far, being able to set it to LSB First is great since the PS2 controller is little endian.  However the problems start to occur when I upload the code.  I grab a scope and check my Clk line, working great, so is Attention (SS/CS) and Command (MOSI).  However my Data line (MISO) is floating at about 4v.  The data being sent to the PS2 controller is correct on the scope, and its being run just in digital mode currently, so I am sending 5 bytes to it (0x01, 0x42, 0x00, 0xFF, 0xFF) and it should be returning (0xFF, 0x41, 0x5A) for the first 3 bytes (which I normally check but am not currently so that the transfer isn't interupted so I could check the data being sent) and then button data for the last 2 bytes.

I have tried slowing the clock I have attached to the SPI Master block as I know these PS2 controllers are somewhat finicky with timing.  Some places say they will run a bit below 100kHz all the way to a bit above 500kHz.  The ones I have from using the MSP430 seem to like to run between 350kHz and 500kHz and I have the external clock set to 850kHz so the Clk they get should be 475kHz, which it seems to be.  But I also know these controllers seem to like a small delay between bytes, and there is absolutely none.  Is there a way to code in a delay between each byte using the SPI Master?

I am using this link for reference;

http://store.curiousinventor.com/guides/PS2

Or if you have any other ideas, please let me know as well!  As easy as this seems and as quickly as I have taken to it, I am sure there is tons to learn still.

Code I am using to get it to send the data correctly so far is as follows; SPI Master setup with CPHA and CPOL both = 1.  RX and TX buffers both set to 5.  Data bits set to 8.

#include <project.h>

int i;

char button_Data[21];

char poll_Data[] = {0x01,0x42,0x00,0xFF,0xFF};
char check_Digital[] = {0xFF,0x41,0x5A};

int main()
{
    for(;;)
    {
        SPIM_WriteTxData(poll_Data[0]);
        SPIM_WriteTxData(poll_Data[1]);
        SPIM_WriteTxData(poll_Data[2]);
        SPIM_WriteTxData(poll_Data[3]);
        SPIM_WriteTxData(poll_Data[4]);
        SPIM_Start();
        for(i=0;i<5;i++)
        {
            CyDelayCycles(25);
            button_Data = SPIM_ReadRxData();   
        }
        SPIM_Stop();
        CyDelayCycles(150);
    }
    /* CyGlobalIntEnable; */ /* Uncomment this line to enable global interrupts. */
    return 0;
}
/* [] END OF FILE */

I'm using CYBLE-022001-00 and would like to configure pins P1.5 and P1.4 as either UART or GPIOs during runtime. Depending on the configuration of the board, I need those pins to be either GPIO or UART pins. The cydwr editor will not let me assign the same pins to both the UART and the GPIOs.