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Initial commit of cc2430 cpu port files. Currently used by /platform/sensinode.

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This commit is contained in:
zdshelby 2009-09-08 20:07:35 +00:00
parent c4ae18e37b
commit c9954072c9
19 changed files with 3434 additions and 0 deletions
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187
cpu/cc2430/dev/uart.c Normal file
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#include <stdlib.h>
#include <string.h>
#include "cc2430_sfr.h"
#include "dev/leds.h"
#include "dev/uart.h"
static int (*uart0_input_handler)(unsigned char c);
static int (*uart1_input_handler)(unsigned char c);
/*---------------------------------------------------------------------------*/
void
uart0_init(uint32_t speed)
{
if(speed != 115200) {
return;
}
#ifdef UART0_ALTERNATIVE_2
PERCFG |= U0CFG; /*alternative port 2 = P1.5-2*/
#ifdef UART0_RTSCTS
P1SEL |= 0x3C; /*peripheral select for TX and RX, RTS, CTS*/
#else
P1SEL |= 0x30; /*peripheral select for TX and RX*/
P1 &= ~0x08; /*RTS down*/
#endif
P1DIR |= 0x28; /*RTS, TX out*/
P1DIR &= ~0x14; /*CTS & RX in*/
#else
PERCFG &= ~U0CFG; /*alternative port 1 = P0.5-2*/
#ifdef UART0_RTSCTS
P0SEL |= 0x3C; /*peripheral select for TX and RX, RTS, CTS*/
#else
P0SEL |= 0x0C; /*peripheral select for TX and RX*/
P0 &= ~0x20; /*RTS down*/
#endif
P0DIR |= 0x28; /*RTS & TX out*/
P0DIR &= ~0x14; /*CTS & RX in*/
#endif
if(speed == 115200) {
U0BAUD=216; /*115200*/
U0GCR =11; /*LSB first and 115200*/
}
if(speed == 38400) {
U0BAUD=59; /*38400*/
U0GCR =10; /*LSB first and 38400*/
}
if(speed == 9600) {
U0BAUD= 59; /* 9600 */
U0GCR = 8; /*LSB first and 9600*/
}
#ifdef UART0_RTSCTS
U0UCR = 0x42; /*defaults: 8N1, RTS/CTS, high stop bit*/
#else
U0UCR = 0x02; /*defaults: 8N1, no flow control, high stop bit*/
#endif
U0CSR = U_MODE | U_RE | U_TXB; /*UART mode, receiver enable, TX done*/
/*set priority group of group 3 to highest, so the UART won't miss bytes*/
IP1 |= IP1_3;
IP0 |= IP0_3;
IEN0_URX0IE = 1;
}
/*---------------------------------------------------------------------------*/
/* Write one byte over the UART. */
void
uart0_writeb(uint8_t byte)
{
IRCON2_UTX0IF = 0;
U0BUF = byte;
while(!IRCON2_UTX0IF); /* Wait until byte has been transmitted. */
IRCON2_UTX0IF = 0;
}
/*---------------------------------------------------------------------------*/
void
uart0_set_input(int (*input)(unsigned char c))
{
uart0_input_handler = input;
}
/*---------------------------------------------------------------------------*/
void
uart0_rxISR(void) __interrupt (URX0_VECTOR)
{
TCON_URX0IF = 0;
if(uart0_input_handler != NULL) {
uart0_input_handler(U0BUF);
}
}
/*---------------------------------------------------------------------------*/
void
uart0_txISR( void ) __interrupt (UTX0_VECTOR)
{
}
/*---------------------------------------------------------------------------*/
/* UART1 initialization */
void
uart1_init(uint32_t speed)
{
#ifdef UART1_ALTERNATIVE_1
PERCFG &= ~U1CFG; /*alternative port 1 = P0.5-2*/
#ifdef UART1_RTSCTS
P0SEL |= 0x3C; /*peripheral select for TX and RX, RTS, CTS*/
#else
P0SEL |= 0x30; /*peripheral select for TX and RX*/
P0 &= ~0x08; /*RTS down*/
#endif
P0DIR |= 0x18; /*RTS, TX out*/
P0DIR &= ~0x24; /*CTS, RX in*/
#else
PERCFG |= U1CFG; /*alternative port 2 = P1.7-4*/
#ifdef UART1_RTSCTS
P1SEL |= 0xF0; /*peripheral select for TX and RX*/
#else
P1SEL |= 0xC0; /*peripheral select for TX and RX*/
P1 &= ~0x20; /*RTS down*/
#endif
P1DIR |= 0x60; /*RTS, TX out*/
P1DIR &= ~0x90; /*CTS, RX in*/
#endif
if(speed == 115200) {
U1BAUD=216; /*115200*/
U1GCR =11; /*LSB first and 115200*/
}
if(speed == 38400) {
U1BAUD=59; /*38400*/
U1GCR =10; /*LSB first and 38400*/
}
if(speed == 9600) {
U1BAUD= 59; /* 9600 */
U1GCR = 8; /*LSB first and 9600*/
}
#ifdef UART1_RTSCTS
U1UCR = 0x42; /*defaults: 8N1, RTS/CTS, high stop bit*/
#else
U1UCR = 0x02; /*defaults: 8N1, no flow control, high stop bit*/
#endif
U1CSR = U_MODE | U_RE | U_TXB; /*UART mode, receiver enable, TX done*/
/*set priority group of group 3 to highest, so the UART won't miss bytes*/
IP1 |= IP1_3;
IP0 |= IP0_3;
IEN0_URX1IE = 1; /* Enable the RX interrupt */
}
/*---------------------------------------------------------------------------*/
/* Write one byte over the UART. */
void
uart1_writeb(uint8_t byte)
{
IRCON2_UTX1IF = 0;
U1BUF = byte;
while(!IRCON2_UTX1IF); /* Wait until byte has been transmitted. */
IRCON2_UTX1IF = 0;
}
/*---------------------------------------------------------------------------*/
void
uart1_set_input(int (*input)(unsigned char c))
{
uart1_input_handler = input;
}
/*---------------------------------------------------------------------------*/
void
uart1_rxISR(void) __interrupt (URX1_VECTOR)
{
TCON_URX1IF = 0;
if(uart1_input_handler != NULL) {
uart1_input_handler(U1BUF);
}
}
/*---------------------------------------------------------------------------*/
void
uart1_txISR( void ) __interrupt (UTX1_VECTOR)
{
}
/*---------------------------------------------------------------------------*/