/* --COPYRIGHT--,BSD_EX
* Copyright (c) 2016, 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.
*
*******************************************************************************
*
* MSP430 CODE EXAMPLE DISCLAIMER
*
* MSP430 code examples are self-contained low-level programs that typically
* demonstrate a single peripheral function or device feature in a highly
* concise manner. For this the code may rely on the device's power-on default
* register values and settings such as the clock configuration and care must
* be taken when combining code from several examples to avoid potential side
* effects. Also see www.ti.com/grace for a GUI- and www.ti.com/msp430ware
* for an API functional library-approach to peripheral configuration.
*
* --/COPYRIGHT--
//******************************************************************************
// MSP430FR235x Demo - eUSCI_A0 UART echo at 4800 baud using BRCLK = 32768Hz.
//
// Description: This demo echoes back characters received via a PC serial port.
// ACLK is used as UART clock source and the device is put in LPM3.
// Note that level shifter hardware is needed to shift between RS232 and MSP
// voltage levels.
//
// The example code shows proper initialization of registers
// and interrupts to receive and transmit data.
// To test code in LPM3, disconnect the debugger.
//
// ACLK = REFO = 32768Hz, MCLK = SMCLK = DCODIV ~1MHz.
//
// MSP430FR2355
// -----------------
// /|\| |
// | | |
// --|RST |
// | |
// | |
// | P4.3/UCA1TXD|----> PC (echo)
// | P4.2/UCA1RXD|<---- PC
// | |
//
// Darren Lu
// Texas Instruments Inc.
// Oct. 2016
// Built with IAR Embedded Workbench v6.50 & Code Composer Studio v6.2
//******************************************************************************
#include <msp430.h>
void Init_GPIO();
int main(void)
{
WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer
// Configure GPIO
Init_GPIO();
PM5CTL0 &= ~LOCKLPM5; // Disable the GPIO power-on default high-impedance mode
// to activate 1previously configured port settings
// Configure UART pins
P4SEL0 |= BIT2 | BIT3; // set 2-UART pin as second function
// Configure UART
UCA1CTLW0 |= UCSWRST;
UCA1CTLW0 |= UCSSEL_1; // set ACLK as BRCLK
// Baud Rate calculation. Referred to UG 17.3.10
// (1) N=32768/4800=6.827
// (2) OS16=0, UCBRx=INT(N)=6
// (4) Fractional portion = 0.827. Refered to UG Table 17-4, UCBRSx=0xEE.
UCA1BR0 = 6; // INT(32768/4800)
UCA1BR1 = 0x00;
UCA1MCTLW = 0xEE00;
UCA1CTLW0 &= ~UCSWRST; // Initialize eUSCI
UCA1IE |= UCRXIE; // Enable USCI_A0 RX interrupt
__bis_SR_register(LPM3_bits|GIE); // Enter LPM3, interrupts enabled
__no_operation(); // For debugger
}
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=USCI_A1_VECTOR
__interrupt void USCI_A1_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(USCI_A1_VECTOR))) USCI_A1_ISR (void)
#else
#error Compiler not supported!
#endif
{
switch(__even_in_range(UCA1IV,USCI_UART_UCTXCPTIFG))
{
case USCI_NONE: break;
case USCI_UART_UCRXIFG:
while(!(UCA1IFG&UCTXIFG));
UCA1TXBUF = UCA1RXBUF;
__no_operation();
break;
case USCI_UART_UCTXIFG: break;
case USCI_UART_UCSTTIFG: break;
case USCI_UART_UCTXCPTIFG: break;
default: break;
}
}
void Init_GPIO()
{
P1DIR = 0xFF; P2DIR = 0xFF;
P1REN = 0xFF; P2REN = 0xFF;
P1OUT = 0x00; P2OUT = 0x00;
}*/
/* --COPYRIGHT--,BSD_EX
* Copyright (c) 2016, 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.
*
*******************************************************************************
*
* MSP430 CODE EXAMPLE DISCLAIMER
*
* MSP430 code examples are self-contained low-level programs that typically
* demonstrate a single peripheral function or device feature in a highly
* concise manner. For this the code may rely on the device's power-on default
* register values and settings such as the clock configuration and care must
* be taken when combining code from several examples to avoid potential side
* effects. Also see www.ti.com/grace for a GUI- and www.ti.com/msp430ware
* for an API functional library-approach to peripheral configuration.
*
* --/COPYRIGHT--*/
//******************************************************************************
// MSP430FR235x Demo - eUSCI_A0 UART echo at 4800 baud using BRCLK = 32768Hz.
//
// Description: This demo echoes back characters received via a PC serial port.
// ACLK is used as UART clock source and the device is put in LPM3.
// Note that level shifter hardware is needed to shift between RS232 and MSP
// voltage levels.
//
// The example code shows proper initialization of registers
// and interrupts to receive and transmit data.
// To test code in LPM3, disconnect the debugger.
//
// ACLK = REFO = 32768Hz, MCLK = SMCLK = DCODIV ~1MHz.
//
// MSP430FR2355
// -----------------
// /|\| |
// | | |
// --|RST |
// | |
// | |
// | P4.3/UCA1TXD|----> PC (echo)
// | P4.2/UCA1RXD|<---- PC
// | |
// Rata de transfer: 4800 bps
//******************************************************************************
#include <msp430.h>
void Init_GPIO();
unsigned char data=120; //'x' x mic
unsigned char sir[5]={'T','e','m','p',':',10};
unsigned int i=0;
int main(void)
{
WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer
// Configure GPIO
Init_GPIO();
// config P4.1
P4OUT |= BIT1; // Configure P1.3 as pulled-up
P4REN |= BIT1; // P1.3 pull-up register enable
P4IES |= BIT1; // P1.3 Hi/Low edge
P4IE |= BIT1; // P1.3 interrupt enabled
// operation at 24MHz(beyond 8MHz) _before_ configuring the clock system.
FRCTL0 = FRCTLPW | NWAITS_2;
__bis_SR_register(SCG0); // disable FLL
CSCTL3 |= SELREF__REFOCLK; // Set REFO as FLL reference source
CSCTL0 = 0; // clear DCO and MOD registers
CSCTL1 |= DCORSEL_7; // Set DCO = 24MHz
CSCTL2 = FLLD_0 + 731; // DCOCLKDIV = 24MHz
__delay_cycles(3);
__bic_SR_register(SCG0); // enable FLL
while(CSCTL7 & (FLLUNLOCK0 | FLLUNLOCK1)); // FLL locked
CSCTL4 = SELMS__DCOCLKDIV | SELA__REFOCLK; // set default REFO(~32768Hz) as ACLK source, ACLK = 32768Hz
// default DCOCLKDIV as MCLK and SMCLK source
P1DIR |= BIT0 | BIT1 | BIT2; // set ACLK SMCLK and LED pin as output
P1SEL1 |= BIT0 | BIT1; // set ACLK and SMCLK pin as second function
PM5CTL0 &= ~LOCKLPM5; // Disable the GPIO power-on default high-impedance mode
// clear P4.1 // to activate 1previously configured port settings
P4IFG &= ~BIT1;
// Configure UART pins
P4SEL0 |= BIT2 | BIT3; // set 2-UART pin as second function
// Configure UART
UCA1CTLW0 |= UCSWRST;
UCA1CTLW0 |= UCSSEL_2; // set SMCLK
// Baud Rate calculation. Referred to UG 17.3.10
// (1) N=24000000/115200=208.33
// (3) OS16=1, UCBRx = 13;
//(4)UCBRFx=0
//UCBRSx=0x49
//Registri
UCA1BR0 = 13; // INT(32768/4800)
UCA1BR1 = 0x00; // UCA1BRW = 13 = 0x000D;
UCA1MCTLW = 0x4901;
UCA1CTLW0 &= ~UCSWRST; // Initialize eUSCI
UCA1IE |= UCRXIE; // Enable USCI_A0 RX interrupt
__bis_SR_register(LPM3_bits|GIE); // Enter LPM3, interrupts enabled
__no_operation(); // For debugger
}
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=USCI_A1_VECTOR
__interrupt void USCI_A1_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(USCI_A1_VECTOR))) USCI_A1_ISR (void)
#else
#error Compiler not supported!
#endif
{
switch(__even_in_range(UCA1IV,USCI_UART_UCTXCPTIFG))
{
case USCI_NONE: break;
case USCI_UART_UCRXIFG:
while(!(UCA1IFG&UCTXIFG));
data=UCA1RXBUF;
UCA1TXBUF = UCA1RXBUF;
__no_operation();
break;
case USCI_UART_UCTXIFG: break;
case USCI_UART_UCSTTIFG: break;
case USCI_UART_UCTXCPTIFG: break;
default: break;
}
}
// Port 4 interrupt service routine
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=PORT4_VECTOR
__interrupt void Port_4(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(PORT4_VECTOR))) Port_4 (void)
#else
#error Compiler not supported!
#endif
{
P4IFG &= ~BIT1; // Clear P1.3 IFG
/* while(!(UCA1IFG&UCTXIFG));// este o transmisie activa?
UCA1TXBUF = data;// incarca 'x' in registrul de transmisie
*/
//for(i=0;i<7;i++)
// {
while(!(UCA1IFG&UCTXIFG));// este o transmisie activa?
UCA1TXBUF = sir[i];// data; incarca 'x' in registrul de transmisie
// }
// i=0;
__bic_SR_register_on_exit(LPM3_bits); // Exit LPM3
}
void Init_GPIO()
{
P1DIR = 0xFF; P2DIR = 0xFF;
P1REN = 0xFF; P2REN = 0xFF;
P1OUT = 0x00; P2OUT = 0x00;
}
