PSoC™ 4 Forum Discussions

Hi, 

I need a one shot 30 sec timer in my project with an interrupt on terminal count. 
I think the timer component is configured correctly and it works as expected (counts for 30 sec and fires interrupt), when I attach the interrupt component to the "tc" output of the timer. 
However, if I attach the interrupt component to the "interrupt" output, the interrupt never get fired (the ISR method is never being entered) although the counter counts down to zero and stops counting as expected being a one shot timer. 

What do I miss? 

Here is my design (part): https://www.dropbox.com/s/1ndrfp3wzxlobil/one-shot-timer.png?dl=0 
Here is my timer config: https://www.dropbox.com/s/zx4625z1thdabub/one-shot-timer-conf.png?dl=0 

Here is my code, attached you will find my test project as well: 

    

#include <stdio.h> 
#include "project.h" 

    

void readData(); 
void logMsg(); 
static char logMsgLine[255]; 
static uint8 isr_flag_timer_tc = 0; 

    

/** 
* Timer ISR 
*/ 
CY_ISR( Timer_Int_Handler ) 
{ 
if (Timer_ReadStatusRegister() & Timer_STATUS_TC_INT_MASK) { 
isr_flag_timer_tc = 1; 
} 
sprintf(logMsgLine, "Interrupt %d looking for %d\n\r", Timer_ReadStatusRegister(), Timer_STATUS_TC_INT_MASK); 
logMsg( logMsgLine ); 
} 

    

int main(void) 
{ 

    

CyGlobalIntEnable; /* Enable global interrupts. */ 

    

UART_Start(); 

    

Timer_Int_StartEx( Timer_Int_Handler ); 

    

for(;;) 
{ 
readData(); 
} 

    

} 

    

void readData(){ 

    

// Start the 30 sec timer 
isr_flag_timer_tc = 0; // will be set to 1 on tc interrupt 
Timer_Start(); 
Timer_Trigger_Write( 1 ); 

    

// loop until 30 sec timer terminal count 
while(!isr_flag_timer_tc){ 
// do something until 30 sec are over 
sprintf(logMsgLine, " timer count %d\n\r", Timer_ReadCounter()); 
logMsg( logMsgLine ); 
CyDelay(1000); 
} 

    

if (isr_flag_timer_tc) { 
isr_flag_timer_tc = 0; 
// stop timer 
Timer_Stop(); 
} 

    

} 

    

/** 
* write a message to some terminal/chanel 
*/ 
void logMsg(char* msg) 
{ 
UART_UartPutString( msg ); 
} 

    

/* [] END OF FILE */

   

Hi.

I would like to get some SWO trace from CY8CKIT-046 PSoC® 4 L-Series Pioneer Kit.  I'm Seggert jlink (ultra+) and J-link gdb server.

Is there any instructions how to configure the printf output to swo? I've checked this, but I don't have Keil or IAR workbench.:

http://www.cypress.com/knowledge-base-article/using-embedded-trace-macrocell-etm-kba90952

Hi all,

   I wrote firmware for CY8C4247-AZI controller for Capsense buttons. in that i used Capsense_CSD component design file.I want to use same code to CY8C4045AZI controller. But in component design capsense_CSD is not available. how to add Capsense_CSD component in PSOC 4000s controllers.Please let me know any solution to avoid this.

Hi,

I have CY8CKIT-145-40XX PSoC 4000s prototyping kit.

Original idea was to read e.g. slider position directly from memory via EzI2C. To enable that, I updated the original CapSense V3.0 component to V3.1 to be able to export register map. I trialed the code functionality with Tuner and everything worked as usual.

To get better understanding what is transferred via I2C I was probing the communicating protocol directly with jump wires and logic analyzer. I was surprised that in every read, the whole registrymap is read through I2C, including somewhat irrelevant info such as device and config ID's..

Anyhow, I hooked Arduino as Master and tried to read directly from address SLD_POSITION 0x54, by setting pointer by writing to the same address, but alas, the reading starts always from registy position CONFIG_ID 0x00 position no matter what. I also used Bridge Control Panel without any better results. I start to get data from 0x00.

Have I understood something incorrectly? In EZI2C_Slave_V1-90_Datasheet.pdf document, at page 15,  It is said in the first sentence of last paragraph "Read operations always begin at the offset data pointer provided by the most recent write operation".

As an attachment, I added a screenshot from Bridge Control Panel demonstrating the writing/reading I tried to do.

Hello Community, 

I want to write to my server 0x01 to activate the notifications, but when I send the command i got an error: 

CYBLE_ERROR_INVALID_OPERATION

The strange part is when I try to write again, the code works, Im able to to print out the value from the server on my computer via master UART.

I attached the file

thanks David C

I have a strange problem that my MacBook could connect with the LightBlue software, while my PC is also OK with CySmart and the USB dongle.  However, when using an iPhone or Samsung S7 to connect and read my BLE peripheral, it would either not able to connect, or disconnect after a few seconds. 

Is there anything special about timeout etc that I should change and check? 

Current I am testing with the cycling example.  The last messages output from the UART is:

CYBLE_EVT_GATT_DISCONNECT_IND

CYBLE_EVT_GAP_DEVICE_DISCONNECTED

CYBLE_EVT_GAPP_ADVERTISEMENT_START_STOP, state: 3

Not quite sure how I could debug the problem. Please help me, thank you!

Hi

So, I have run out of pins on the CYBLE-014008 module. I need another digital output pin.

Is it possible to change the function of an assigned pin (say a DAC output) at runtime? Or even use the SWDIO as a GPIO pin whilst retaining SWD?

Thanks.