PSoC™ 4 Forum Discussions

I configure two EZ-Serial BLE modules. One as Central and one as Perif.

I wire the Central w/ HW handshake and enable it with baud=115200 and F=01. I leave the Perif as no handshake with baud=57600.

I can now ZMODEM a file from Central to Perif and the Central BLE will throttle the file data coming in to it from PC1 so that the Perif can finish sending out is lower baud stream to PC2.

If I try to reverse roles w/ Perif wired w/ HW handshake, 115200 baud and F=01... then Central w/ no handshake and 57600 baud.. I can not ZMODEM from Perif to Central.

I am not seeing timely BLE transfers from Central back to Perif. They seem to get backlogged and after 30sec or something, they sometimes finally get sent in a group transmit. I can not sniff RF... I'm simply looking at the BLE Rx/Tx on each end... so I don't know which module is getting confused.

Is ZMODEM w/flow control not possible from a Perif to a Central? NOTE: Even if I run the Central @ 115200, ZMODEM also fails... and handshake lines are always inactive on the Perif.

I'm working with a proc 4 device and a LIS3DH accelerometer. I've stripped down my code to do the most basic thing to demonstrate my problem. I read the "who am I" register (0x0F) of the accelerometer. The response is 0x33 and that's just what I get if I let the psoc read it once, twice or even 10 times. But if I read it (or other registers more than ten times the proc hangs. I'm watching everything on the I2C bus with a logic analyzer. I can tell it hangs because it doesn't get to the LED section at the end.

Thanks for any help with this...

Kevin

#include <project.h>

uint32 i;
uint8 userArray[6] = {0x01,0x02,0x03,0x04,0x05,0x06};
uint8 status;
uint8 I2C_WRITE_XFER_MODE = 0x00u;
uint8 I2C_I2CMSTR_NO_ERROR;
uint32 LIS3DH_ADDRESS = 0x18 ;

int main()
{   CyGlobalIntEnable;
    LED_Green_Write(0);

//    UART_Start();
//    UART_UartPutString("The first words out...");
    
   I2C_Start(); //Start the I2C component
          

    
    I2C_I2CMasterSendStart(LIS3DH_ADDRESS, I2C_I2C_WRITE_XFER_MODE);
    
 //   I2C_I2CMasterWriteByte(0x20);
 //   I2C_I2CMasterWriteByte(0x97);
 //   I2C_I2CMasterSendStop();
    
    
    
    for(i=0; i<10; i++)
        {
         
         I2C_I2CMasterSendStart(LIS3DH_ADDRESS, I2C_I2C_WRITE_XFER_MODE);
         I2C_I2CMasterWriteByte(0x0F);
         I2C_I2CMasterSendStop();

         I2C_I2CMasterSendStart(LIS3DH_ADDRESS, I2C_I2C_READ_XFER_MODE);
         userArray = I2C_I2CMasterReadByte(I2C_I2C_ACK_DATA);
         I2C_I2CMasterSendStop();

        }
        
    LED_Blue_Write(0);
    LED_Green_Write(1);
        
    I2C_I2CMasterSendStop(); /* Send Stop */
    
   
    
    
}

/* [] END OF FILE */

Hello,

I have to build a project with IAR (version 7.80.4 using a commercial license). The project is set-up with PSoC Creator 4.1 and then connected to IAR via the Project->Export to IDE. Since adding the CapSense [v4.0] component I get the following error:

Error[Li016]: size limit exceeded. The application needs 0x1a29a (107 162) bytes, which is greater than the limit of 0x8000 (32 768) bytes.
            The limit is due to license "ARM.EW.LINKER" from "CapSense_SmartSense_SL_v3_10.o(Capsense_P4Library_IAR.a)" (and 1 other module).

It seems like a component (Capsense_P4Library_IAR.a) was put together with the Kickstart edition of IAR? 

After taking out the CapSense component everything is fine in IAR and the application still needs more than 100kbytes.

What can I do to make it work (I have to use IAR instead of PSoC creator)? 

Thanks

Thomas