Tool/software:
Hello Team,
please help to fix the issue in sending data over uart, i am using MSP430fr6047 EVM board, rev A with Rev B chip.
#include <msp430.h>
#define UART_TX_PORT_SEL0 P2SEL0
#define UART_TX_PORT_SEL1 P2SEL1
#define UART_TX_PIN BIT0
#define UART_RX_PIN BIT1
void uart_init(void);
void uart_send_string(const char *str);
int main(void)
{
WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer
PM5CTL0 &= ~LOCKLPM5; // Enable GPIO
// Configure pins for UART
UART_TX_PORT_SEL0 |= UART_TX_PIN | UART_RX_PIN;
UART_TX_PORT_SEL1 &= ~(UART_TX_PIN | UART_RX_PIN);
uart_init();
while (1) {
uart_send_string("Hello MSP430 UART!\r\n");
__delay_cycles(1000000); // ~1 s delay @ 1 MHz
}
}
void uart_init(void)
{
UCA0CTLW0 |= UCSWRST; // Hold in reset
UCA0CTLW0 |= UCSSEL__SMCLK; // SMCLK
UCA0BRW = 104; // 1 MHz / 9600 ≈ 104
UCA0MCTLW = UCOS16 | UCBRF_2 | 0xD600; // Modulation settings for 9600
UCA0CTLW0 &= ~UCSWRST; // Initialize USCI
}
void uart_send_string(const char *str)
{
while (*str) {
while (!(UCA0IFG & UCTXIFG)); // Wait for TX ready
UCA0TXBUF = *str++;
}
}
Thank you.
Venkatarramana
