Need following code edited to do the following. This is using Code Composer Studio for the CS3220s Launchpad. I just need the requirements listed below to be completed. Please message if more info is needed.

-Use only one byte of RAM for the serial buffer ( char input; ).

-Use only one byte of RAM for the state ( unsigned char state; ).

-Receive only one character at a time from the UART and it is not buffered.

-Turn on an LED when a user types ON into the console.

-Turn off the LED when a user types OFF into the console.

Code:

/*

* Copyright (c) 2015-2020, 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.

*/

/*

* ======== uartecho.c ========

*/

#include <stdint.h>

#include <stddef.h>

/* Driver Header files */

#include <ti/drivers/GPIO.h>

#include <ti/drivers/UART.h>

/* Driver configuration */

#include "ti_drivers_config.h"

/*

* ======== mainThread ========

*/

void *mainThread(void *arg0)

{

char input;

const char echoPrompt[] = "Echoing characters:\r\n";

UART_Handle uart;

UART_Params uartParams;

/* Call driver init functions */

GPIO_init();

UART_init();

/* Configure the LED pin */

GPIO_setConfig(CONFIG_GPIO_LED_0, GPIO_CFG_OUT_STD | GPIO_CFG_OUT_LOW);

/* 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.baudRate = 115200;

uart = UART_open(CONFIG_UART_0, &uartParams);

if (uart == NULL) {

/* UART_open() failed */

while (1);

}

/* Turn on user LED to indicate successful initialization */

GPIO_write(CONFIG_GPIO_LED_0, CONFIG_GPIO_LED_ON);

UART_write(uart, echoPrompt, sizeof(echoPrompt));

/* Loop forever echoing */

while (1) {

UART_read(uart, &input, 1);

UART_write(uart, &input, 1);

}

}