RTOS/CC2640R2F: Read and Writing to 8 Pins Simultaneously . PIN_setPortOutputValue PIN_getPortOutputValue Example code needed.

Muhammad Abdur Rehman Khawaja

Part Number: CC2640R2F
Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI-RTOS

Hi,

I hope you are doing well. I need to set 8 pins in open drain + pull up mode and Set it output. Can I read write port? Which pins I can use as port? any example code?

Thanks

over 6 years ago

0 YiKai Chen over 6 years ago

Guru 735685 points

Try to refer to gpiointerrupt example at dev.ti.com/.../

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

But I can't see the usage of

PIN_getPortOutputValue

I need to see example code in which both of above functions are used.

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Intellectual 375 points

I am trying to read data on parallel port and sending it on uart. Trying to develop parallel to serial interface.

Parallel Pins Config, Wanted to set open drain ,pull up, and set as OUTPUT

PIN_Config parallelPinTable[] = 
{
    ParallelBit0  | PIN_GPIO_OUTPUT_EN | PIN_INPUT_EN | PIN_OPENDRAIN,
    ParallelBit1  | PIN_GPIO_OUTPUT_EN | PIN_INPUT_EN | PIN_OPENDRAIN,
    ParallelBit2  | PIN_GPIO_OUTPUT_EN | PIN_INPUT_EN | PIN_OPENDRAIN,
    ParallelBit3  | PIN_GPIO_OUTPUT_EN | PIN_INPUT_EN | PIN_OPENDRAIN,
    ParallelBit4  | PIN_GPIO_OUTPUT_EN | PIN_INPUT_EN | PIN_OPENDRAIN,
    ParallelBit5  | PIN_GPIO_OUTPUT_EN | PIN_INPUT_EN | PIN_OPENDRAIN,
    ParallelBit6  | PIN_GPIO_OUTPUT_EN | PIN_INPUT_EN | PIN_OPENDRAIN,
    ParallelBit7  | PIN_GPIO_OUTPUT_EN | PIN_INPUT_EN | PIN_OPENDRAIN,
    PIN_TERMINATE
};

If I use interrupt call. 
UART_writePolling doesnt output any data

and
UART_write output data once and program gets stuck.

void buttonCallbackFxn(PIN_Handle handle, PIN_Id pinId) {
  
     currVal =  PIN_getPortInputValue(ParallelPinHandle);
     valueRead=true;
UART_writePolling(uart, &currVal, 1);  // Does not outputs any data

or

 UART_write(uart, &currVal, 1);   //Programs gets stuck

}

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

I suspect there is something wrong with your UART init, are you sure you have correct uart handle? If you set a breakpoint on the line "valueRead=true;" and check currVal, what do your see the value of currVal?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

in main function

int main(void)
{

   Task_Params taskParams;
     
    /* Call board init functions */
    Board_initGeneral();
    Board_initUART();
    const char echoPrompt[] = "\fEchoing characters:\r\n";

    /* Create a UART with data processing off. */
    UART_Params_init(&uartParams);
    uartParams.writeDataMode = UART_DATA_BINARY;
    uartParams.readDataMode = UART_DATA_BINARY;
    uartParams.readReturnMode = UART_RETURN_FULL;
    uartParams.readEcho = UART_ECHO_OFF;
    uartParams.baudRate = 9600;
    uart = UART_open(Board_UART0, &uartParams);

    if (uart == NULL) {
        System_abort("Error opening the UART");
    }

For me issue seems due to uart interrupt call inside interrupt routine.

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Intellectual 375 points

I am using CCS Cloud, Unable to load the any example project in Desktop CCS

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

I suggest you to use Desktop CCS and UARTecho example imported from CCS->Resource Explorer.

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

Error 1
"Can't find a source file at "/db/vtree/ademars/git_trees/avala-v/src/ti/sysbios/family/arm/m3/Hwi.c"
Locate the file or edit the source lookup path to include its location.
"

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Intellectual 375 points

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

Can you do a screen shot to show me where you set breakpoint?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

It complete one interrupts routine

On second button press it execute first breakpoint but it get hangs on UART_Write, doesnt stops at that breakpoint

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

Do you set a breakpoint on the line "valueRead=true;" and check currVal?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

Second Iteration

third iteration

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

If you display currVal in hex format in watch window, what do you see?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Intellectual 375 points

Is this right?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Intellectual 375 points

I think issue is interrupt call within interrupt routine.

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

So, it actually has value 0x27 and I suppose if you dircrely output this value to UART, it won't show its hex value.

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

There is one more thing I noticed is the button call back function fire once on button press

but with above line uncommented it fires twice.

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

You can use scope to check if there are two triggers in your GPI pin first.

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

I doubt that, I can't verify as I dont have scope at the moment. But I highly doubt that its happening

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

Which SDK example is your project based on? If you use original example, do you still see the same issue?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

I used pinInterrupt example combined with uart echo example.

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

If you run pinInterrupt example without modification, do you see the same issue?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

Main issue is not its firing the interrupt twice or more, Main issue is why it just send data once and then get stucks. May be system cannot handle multiple interrupt call?

Main thing I wanted to do is to read port data and write to uart. Is is possible?

0 YiKai Chen over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Guru 735685 points

Yes, that’s possible. Do you check if you get correct UART handle before you use it to output message to UART? By the way, do you call UART_Init in the beginning?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to YiKai Chen

Intellectual 375 points

Yes I have called, somehow the issue is not happening now, Need to discuss the PIN_getPortInputValue and PIN_getPortOutputValue
It seems it read all 32 pins despite of what configuration is set on pin Handle.

Is it possible to read and write same 8 pins at two different condition?

as I explained I wanted to develop uart to parallel read/write, any idea what steps to follow?

ParallelBit2 | PIN_GPIO_OUTPUT_EN | PIN_INPUT_EN | PIN_OPENDRAIN|PIN_PULLUP,

is this OK or need to modify?

0 TER over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

TI__Guru**** 317180 points

This thread has a fair number of posts and it difficult to see the current status. I understand from your last post that you have issues with PIN_getPortInputValue and PIN_getPortOutputValue. Could you share a full code that shows how you setup the pintable and how you use the functions?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to TER

Intellectual 375 points

You can understand by the title of the post that whats my objective.
"Read and Writing to 8 Pins Simultaneously . PIN_setPortOutputValue PIN_getPortOutputValue Example code needed."

So I need a code which can read and write 8 pin using above functions. Its hard for me understand through the documentation of TI RTOS provided.

I tried code earlier and also provided here in the forum and most of the time was spent debugging irrelevant issues.

So I think its better to ask expert here to help me with a code which can do the job.

Can you help me?

0 Muhammad Abdur Rehman Khawaja over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

Intellectual 375 points

Regarding UART issue I have created separate thread so It can be handle separately.

0 TER over 6 years ago in reply to Muhammad Abdur Rehman Khawaja

TI__Guru**** 317180 points

I tested the code below based on the documentation in the PIN.h documentation:

/*
 * Copyright (c) 2015-2018, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 *  ======== empty.c ========
 */

/* For usleep() */
#include <unistd.h>
#include <stdint.h>
#include <stddef.h>

/* Driver Header files */
//#include <ti/drivers/GPIO.h>
// #include <ti/drivers/I2C.h>
// #include <ti/drivers/SPI.h>
// #include <ti/drivers/UART.h>
// #include <ti/drivers/Watchdog.h>
#include <ti/drivers/PIN.h>
#include <ti/drivers/pin/PINCC26XX.h>

/* Board Header file */
#include "Board.h"

/* Pin driver handles */
static PIN_Handle portHandle;
static PIN_State portPinState;

PIN_Config portPinTable[] = {
    CC1310_LAUNCHXL_DIO12 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL | PIN_DRVSTR_MAX,
    CC1310_LAUNCHXL_DIO15 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL | PIN_DRVSTR_MAX,
    CC1310_LAUNCHXL_DIO21 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL | PIN_DRVSTR_MAX,
    CC1310_LAUNCHXL_DIO22 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL | PIN_DRVSTR_MAX,
    PIN_TERMINATE
};


/*
 *  ======== mainThread ========
 */
void *mainThread(void *arg0)
{
    /* 1 second delay */
    uint32_t time = 1;

    /* Call driver init functions */
    //GPIO_init();
    // I2C_init();
    // SPI_init();
    // UART_init();
    // Watchdog_init();

    // Get handle to this collection of pins
    portHandle = PIN_open(&portPinState, portPinTable);

    PIN_setPortOutputValue(&portPinState, 0);

    while (1) {
        sleep(time);
        //GPIO_toggle(Board_GPIO_LED0);
    }
}

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RTOS/CC2640R2F: Read and Writing to 8 Pins Simultaneously . PIN_setPortOutputValue PIN_getPortOutputValue Example code needed.

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