Initialize PORTB for UART1 with 9600 baud rate

This commit is contained in:
Sanyog Nevase Nevase 2024-11-07 13:17:34 +05:30
parent 1a6248ef11
commit e52ff2bad3
1 changed files with 19 additions and 0 deletions

19
main.c
View File

@ -19,4 +19,23 @@ void GPIO_PORT_F_init(void)
}
void GPIO_PORT_B_init(void)
{
SYSCTL_RCGCGPIO_R |= 0x02; // ENABLE CLOCK FOR GPIOB
SYSCTL_RCGCUART_R |= 0x02; // ENABLE CLOCK FOR UART1
GPIO_PORTB_DEN_R |= 0x03; // DIGITAL ENABLE FOR PB0 AND PB1
GPIO_PORTB_AFSEL_R |= 0x03; // ENABLE ALTERNATE FUNCTION ON PB0,PB1
GPIO_PORTB_PCTL_R = (GPIO_PORTB_PCTL_R & 0xFFFFFF00) | 0x00000011; // Set PB0, PB1 for UART
UART1_CTL_R &= ~0x01; // DISABLE UART1 DURING SETUP
UART1_IBRD_R = 104; // Set integer part of baud rate (for 9600 baud at 16 MHz clock)
UART1_FBRD_R = 11; // Set fractional part of baud rate
UART1_LCRH_R = 0x62; // 8-bit, odd parity, 1 stop bit
UART1_CC_R = 0x00; // Use system clock
UART1_CTL_R |= 0x301; // Enable UART1, RX, and TX
}