git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1102 35acf78f-673a-0410-8e92-d51de3d6d3f4
gdisirio
parent
9d359d8a3b
commit
b19be5d31d
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@ -48,8 +48,9 @@ CSRC = ${PORTSRC} \
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${KERNSRC} \
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${KERNSRC} \
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${TESTSRC} \
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${TESTSRC} \
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../../os/io/pal.c \
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../../os/io/pal.c \
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../../os/ports/GCC/MSP430/pal_lld.c \
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../../os/io/serial.c \
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../../os/ports/GCC/MSP430/msp430_serial.c \
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../../os/io/platforms/MSP430/pal_lld.c \
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../../os/io/platforms/MSP430/serial_lld.c \
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../../os/various/evtimer.c \
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../../os/various/evtimer.c \
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board.c main.c
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board.c main.c
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@ -61,6 +62,7 @@ ASMSRC = $(PORTASM)
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INCDIR = $(PORTINC) $(KERNINC) $(TESTINC) \
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INCDIR = $(PORTINC) $(KERNINC) $(TESTINC) \
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../../os/io \
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../../os/io \
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../../os/io/platforms/MSP430 \
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../../os/various
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../../os/various
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#
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#
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@ -19,11 +19,11 @@
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#include <ch.h>
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#include <ch.h>
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#include <pal.h>
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#include <pal.h>
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#include <serial.h>
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#include <signal.h>
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#include <signal.h>
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#include "board.h"
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#include "board.h"
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#include "msp430_serial.h"
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/*
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/*
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* Digital I/O ports static configuration as defined in @p board.h.
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* Digital I/O ports static configuration as defined in @p board.h.
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@ -75,7 +75,7 @@ void hwinit(void) {
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/*
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/*
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* Other subsystems.
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* Other subsystems.
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*/
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*/
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serial_init();
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sdInit();
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}
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}
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CH_IRQ_HANDLER(TIMERA0_VECTOR) {
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CH_IRQ_HANDLER(TIMERA0_VECTOR) {
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@ -19,10 +19,10 @@
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#include <ch.h>
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#include <ch.h>
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#include <pal.h>
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#include <pal.h>
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#include <serial.h>
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#include <test.h>
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#include <test.h>
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#include "board.h"
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#include "board.h"
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#include "msp430_serial.h"
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/*
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/*
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* Red LEDs blinker thread, times are in milliseconds.
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* Red LEDs blinker thread, times are in milliseconds.
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@ -49,6 +49,11 @@ int main(int argc, char **argv) {
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*/
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*/
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hwinit();
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hwinit();
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/*
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* Activates the communication port 1 using the driver default configuration.
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*/
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sdStart(&COM1, NULL);
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/*
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/*
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* The main() function becomes a thread here then the interrupts are
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* The main() function becomes a thread here then the interrupts are
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* enabled and ChibiOS/RT goes live.
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* enabled and ChibiOS/RT goes live.
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@ -138,10 +138,10 @@ typedef struct {
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/*===========================================================================*/
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/*===========================================================================*/
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/** @cond never*/
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/** @cond never*/
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#if defined(USE_SAM7X_USART0)
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#if USE_SAM7X_USART0
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extern SerialDriver COM1;
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extern SerialDriver COM1;
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#endif
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#endif
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#if defined(USE_SAM7X_USART1)
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#if USE_SAM7X_USART1
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extern SerialDriver COM2;
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extern SerialDriver COM2;
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#endif
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#endif
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@ -0,0 +1,292 @@
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/*
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ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file templates/serial_lld.c
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* @brief Serial Driver subsystem low level driver source template
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* @addtogroup SERIAL_LLD
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* @{
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*/
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#include <ch.h>
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#include <serial.h>
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#include <signal.h>
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#include "board.h"
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#if USE_MSP430_USART0 || defined(__DOXYGEN__)
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/** @brief USART0 serial driver identifier.*/
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SerialDriver COM1;
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#endif
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#if USE_MSP430_USART1 || defined(__DOXYGEN__)
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/** @brief USART1 serial driver identifier.*/
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SerialDriver COM2;
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#endif
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/** @brief Driver default configuration.*/
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static const SerialDriverConfig default_config = {
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UBR(DEFAULT_USART_BITRATE),
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0,
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CHAR
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};
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/*===========================================================================*/
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/* Low Level Driver local functions. */
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/*===========================================================================*/
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static void set_error(uint8_t urctl, SerialDriver *sdp) {
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sdflags_t sts = 0;
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if (urctl & OE)
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sts |= SD_OVERRUN_ERROR;
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if (urctl & PE)
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sts |= SD_PARITY_ERROR;
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if (urctl & FE)
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sts |= SD_FRAMING_ERROR;
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if (urctl & BRK)
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sts |= SD_BREAK_DETECTED;
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chSysLockFromIsr();
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sdAddFlagsI(sdp, sts);
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chSysUnlockFromIsr();
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}
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#if USE_MSP430_USART0 || defined(__DOXYGEN__)
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static void notify1(void) {
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if (!(U0IE & UTXIE0)) {
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chSysLockFromIsr();
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U0TXBUF = (uint8_t)sdRequestDataI(&COM1);
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chSysUnlockFromIsr();
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U0IE |= UTXIE0;
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}
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}
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/**
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* @brief USART0 initialization.
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* @param[in] config the architecture-dependent serial driver configuration
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*/
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void usart0_init(const SerialDriverConfig *config) {
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U0CTL = SWRST; /* Resets the USART, it should already be.*/
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/* USART init */
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U0TCTL = SSEL0 | SSEL1; /* SMCLK as clock source.*/
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U0MCTL = config->mod; /* Modulator.*/
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U0BR1 = (uint8_t)(config->div >> 8); /* Divider high.*/
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U0BR0 = (uint8_t)(config->div >> 0); /* Divider low.*/
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/* Clear USART status.*/
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(void)U0RXBUF;
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U0RCTL = 0;
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/* USART enable.*/
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U0ME |= UTXE0 + URXE0; /* Enables the USART.*/
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U0CTL = config->ctl & ~SWRST; /* Various settings, clears reset state.*/
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U0IE |= URXIE0; /* Enables RX interrupt.*/
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}
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/**
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* @brief USART0 de-initialization.
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*/
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void usart0_deinit(void) {
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U0IE &= ~URXIE0;
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U0CTL = SWRST;
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}
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#endif /* USE_MSP430_USART0 */
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#if USE_MSP430_USART1 || defined(__DOXYGEN__)
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static void notify2(void) {
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if (!(U1IE & UTXIE1)) {
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U1TXBUF = (uint8_t)sdRequestDataI(&COM2);
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U1IE |= UTXIE1;
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}
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}
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/**
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* @brief USART1 initialization.
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* @param[in] config the architecture-dependent serial driver configuration
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*/
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void usart1_init(const SerialDriverConfig *config) {
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U1CTL = SWRST; /* Resets the USART, it should already be.*/
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/* USART init.*/
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U1TCTL = SSEL0 | SSEL1; /* SMCLK as clock source.*/
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U1MCTL = config->mod; /* Modulator.*/
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U1BR1 = (uint8_t)(config->div >> 8); /* Divider high.*/
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U1BR0 = (uint8_t)(config->div >> 0); /* Divider low.*/
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/* Clear USART status.*/
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(void)U0RXBUF;
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U1RCTL = 0;
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/* USART enable.*/
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U1ME |= UTXE0 + URXE0; /* Enables the USART.*/
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U1CTL = config->ctl & ~SWRST; /* Various settings, clears reset state.*/
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U1IE |= URXIE0; /* Enables RX interrupt.*/
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}
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/**
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* @brief USART1 de-initialization.
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*/
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void usart1_deinit(void) {
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U1IE &= ~URXIE0;
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U1CTL = SWRST;
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}
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#endif /* USE_MSP430_USART1 */
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/*===========================================================================*/
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/* Low Level Driver interrupt handlers. */
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/*===========================================================================*/
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#if USE_MSP430_USART0 || defined(__DOXYGEN__)
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CH_IRQ_HANDLER(USART0TX_VECTOR) {
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msg_t b;
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CH_IRQ_PROLOGUE();
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chSysLockFromIsr();
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b = sdRequestDataI(&COM1);
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chSysUnlockFromIsr();
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if (b < Q_OK)
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U0IE &= ~UTXIE0;
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else
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U0TXBUF = b;
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CH_IRQ_EPILOGUE();
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}
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CH_IRQ_HANDLER(USART0RX_VECTOR) {
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uint8_t urctl;
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CH_IRQ_PROLOGUE();
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if ((urctl = U0RCTL) & RXERR)
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set_error(urctl, &COM1);
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chSysLockFromIsr();
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sdIncomingDataI(&COM1, U0RXBUF);
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chSysUnlockFromIsr();
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CH_IRQ_EPILOGUE();
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}
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#endif /* USE_MSP430_USART0 */
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#if USE_MSP430_USART1 || defined(__DOXYGEN__)
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CH_IRQ_HANDLER(USART1TX_VECTOR) {
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msg_t b;
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CH_IRQ_PROLOGUE();
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chSysLockFromIsr();
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b = sdRequestDataI(&COM2);
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chSysUnlockFromIsr();
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if (b < Q_OK)
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U1IE &= ~UTXIE1;
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else
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U1TXBUF = b;
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CH_IRQ_EPILOGUE();
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}
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CH_IRQ_HANDLER(USART1RX_VECTOR) {
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uint8_t urctl;
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CH_IRQ_PROLOGUE();
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if ((urctl = U1RCTL) & RXERR)
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set_error(urctl, &COM2);
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chSysLockFromIsr();
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sdIncomingDataI(&COM2, U1RXBUF);
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chSysUnlockFromIsr();
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CH_IRQ_EPILOGUE();
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}
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#endif /* USE_MSP430_USART1 */
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/*===========================================================================*/
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/* Low Level Driver exported functions. */
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/*===========================================================================*/
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/**
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* Low level serial driver initialization.
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*/
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void sd_lld_init(void) {
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#if USE_MSP430_USART0
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sdObjectInit(&COM1, NULL, notify1);
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/* I/O pins for USART0.*/
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P3SEL |= BV(4) + BV(5);
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#endif
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#if USE_MSP430_USART1
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sdObjectInit(&COM2, NULL, notify2);
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/* I/O pins for USART1.*/
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P3SEL |= BV(6) + BV(7);
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#endif
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}
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/**
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* @brief Low level serial driver configuration and (re)start.
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*
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* @param[in] sdp pointer to a @p SerialDriver object
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* @param[in] config the architecture-dependent serial driver configuration.
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* If this parameter is set to @p NULL then a default
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* configuration is used.
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*/
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void sd_lld_start(SerialDriver *sdp, const SerialDriverConfig *config) {
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if (config == NULL)
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config = &default_config;
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#if USE_MSP430_USART0
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if (&COM1 == sdp) {
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usart0_init(config);
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return;
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}
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#endif
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#if USE_MSP430_USART1
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if (&COM2 == sdp) {
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usart1_init(config);
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return;
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}
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#endif
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}
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/**
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* @brief Low level serial driver stop.
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* @details De-initializes the USART, stops the associated clock, resets the
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* interrupt vector.
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*
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* @param[in] sdp pointer to a @p SerialDriver object
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*/
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void sd_lld_stop(SerialDriver *sdp) {
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#if USE_MSP430_USART0
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if (&COM1 == sdp) {
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usart0_deinit();
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return;
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}
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#endif
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#if USE_MSP430_USART1
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if (&COM2 == sdp) {
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usart1_deinit();
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return;
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}
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#endif
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}
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/** @} */
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@ -0,0 +1,163 @@
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/*
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||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @file templates/serial_lld.h
|
||||||
|
* @brief Serial Driver subsystem low level driver header template
|
||||||
|
* @addtogroup SERIAL_LLD
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _SERIAL_LLD_H_
|
||||||
|
#define _SERIAL_LLD_H_
|
||||||
|
|
||||||
|
/*===========================================================================*/
|
||||||
|
/* Driver pre-compile time settings. */
|
||||||
|
/*===========================================================================*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Serial buffers size.
|
||||||
|
* @details Configuration parameter, you can change the depth of the queue
|
||||||
|
* buffers depending on the requirements of your application.
|
||||||
|
* @note The default is 32 bytes for both the transmission and receive buffers.
|
||||||
|
*/
|
||||||
|
#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
|
||||||
|
#define SERIAL_BUFFERS_SIZE 32
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Default bit rate.
|
||||||
|
* @details Configuration parameter, at startup the UARTs are configured at
|
||||||
|
* this speed.
|
||||||
|
*/
|
||||||
|
#if !defined(DEFAULT_USART_BITRATE) || defined(__DOXYGEN__)
|
||||||
|
#define DEFAULT_USART_BITRATE 38400
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief USART0 driver enable switch.
|
||||||
|
* @details If set to @p TRUE the support for USART0 is included.
|
||||||
|
* @note The default is @p TRUE.
|
||||||
|
*/
|
||||||
|
#if !defined(USE_MSP430_USART0) || defined(__DOXYGEN__)
|
||||||
|
#define USE_MSP430_USART0 TRUE
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief USART1 driver enable switch.
|
||||||
|
* @details If set to @p TRUE the support for USART1 is included.
|
||||||
|
* @note The default is @p FALSE.
|
||||||
|
*/
|
||||||
|
#if !defined(USE_MSP430_USART1) || defined(__DOXYGEN__)
|
||||||
|
#define USE_MSP430_USART1 FALSE
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/*===========================================================================*/
|
||||||
|
/* Unsupported event flags and custom events. */
|
||||||
|
/*===========================================================================*/
|
||||||
|
|
||||||
|
/*===========================================================================*/
|
||||||
|
/* Driver data structures and types. */
|
||||||
|
/*===========================================================================*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Serial Driver condition flags type.
|
||||||
|
*/
|
||||||
|
typedef uint8_t sdflags_t;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief @p SerialDriver specific data.
|
||||||
|
*/
|
||||||
|
struct _serial_driver_data {
|
||||||
|
/**
|
||||||
|
* Input queue, incoming data can be read from this input queue by
|
||||||
|
* using the queues APIs.
|
||||||
|
*/
|
||||||
|
InputQueue iqueue;
|
||||||
|
/**
|
||||||
|
* Output queue, outgoing data can be written to this output queue by
|
||||||
|
* using the queues APIs.
|
||||||
|
*/
|
||||||
|
OutputQueue oqueue;
|
||||||
|
/**
|
||||||
|
* Status Change @p EventSource. This event is generated when one or more
|
||||||
|
* condition flags change.
|
||||||
|
*/
|
||||||
|
EventSource sevent;
|
||||||
|
/**
|
||||||
|
* I/O driver status flags.
|
||||||
|
*/
|
||||||
|
sdflags_t flags;
|
||||||
|
/**
|
||||||
|
* Input circular buffer.
|
||||||
|
*/
|
||||||
|
uint8_t ib[SERIAL_BUFFERS_SIZE];
|
||||||
|
/**
|
||||||
|
* Output circular buffer.
|
||||||
|
*/
|
||||||
|
uint8_t ob[SERIAL_BUFFERS_SIZE];
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Macro for baud rate computation.
|
||||||
|
* @note Make sure the final baud rate is within tolerance.
|
||||||
|
*/
|
||||||
|
#define UBR(b) (SMCLK / (b))
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Generic Serial Driver static initializer.
|
||||||
|
* @details An instance of this structure must be passed to @p sdStart()
|
||||||
|
* in order to configure and start a serial driver operations.
|
||||||
|
*
|
||||||
|
* @note This structure content is architecture dependent, each driver
|
||||||
|
* implementation defines its own version and the custom static
|
||||||
|
* initializers.
|
||||||
|
*/
|
||||||
|
typedef struct {
|
||||||
|
uint16_t div;
|
||||||
|
uint8_t mod;
|
||||||
|
uint8_t ctl;
|
||||||
|
} SerialDriverConfig;
|
||||||
|
|
||||||
|
/*===========================================================================*/
|
||||||
|
/* External declarations. */
|
||||||
|
/*===========================================================================*/
|
||||||
|
|
||||||
|
/** @cond never*/
|
||||||
|
#if USE_MSP430_USART0
|
||||||
|
extern SerialDriver COM1;
|
||||||
|
#endif
|
||||||
|
#if USE_MSP430_USART1
|
||||||
|
extern SerialDriver COM2;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
void sd_lld_init(void);
|
||||||
|
void sd_lld_start(SerialDriver *sdp, const SerialDriverConfig *config);
|
||||||
|
void sd_lld_stop(SerialDriver *sdp);
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
/** @endcond*/
|
||||||
|
|
||||||
|
#endif /* _SERIAL_LLD_H_ */
|
||||||
|
|
||||||
|
/** @} */
|
||||||
|
|
@ -1,216 +0,0 @@
|
||||||
/*
|
|
||||||
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
|
||||||
|
|
||||||
This file is part of ChibiOS/RT.
|
|
||||||
|
|
||||||
ChibiOS/RT is free software; you can redistribute it and/or modify
|
|
||||||
it under the terms of the GNU General Public License as published by
|
|
||||||
the Free Software Foundation; either version 3 of the License, or
|
|
||||||
(at your option) any later version.
|
|
||||||
|
|
||||||
ChibiOS/RT is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
GNU General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU General Public License
|
|
||||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file MSP430/msp430_serial.c
|
|
||||||
* @brief MSP430 Serial driver code.
|
|
||||||
* @addtogroup MSP430_SERIAL
|
|
||||||
* @{
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <ch.h>
|
|
||||||
#include <signal.h>
|
|
||||||
|
|
||||||
#include "board.h"
|
|
||||||
#include "msp430_serial.h"
|
|
||||||
|
|
||||||
static void SetError(uint8_t urctl, FullDuplexDriver *com) {
|
|
||||||
dflags_t sts = 0;
|
|
||||||
|
|
||||||
if (urctl & OE)
|
|
||||||
sts |= SD_OVERRUN_ERROR;
|
|
||||||
if (urctl & PE)
|
|
||||||
sts |= SD_PARITY_ERROR;
|
|
||||||
if (urctl & FE)
|
|
||||||
sts |= SD_FRAMING_ERROR;
|
|
||||||
if (urctl & BRK)
|
|
||||||
sts |= SD_BREAK_DETECTED;
|
|
||||||
chSysLockFromIsr();
|
|
||||||
chFDDAddFlagsI(com, sts);
|
|
||||||
chSysUnlockFromIsr();
|
|
||||||
}
|
|
||||||
|
|
||||||
#if USE_MSP430_USART0 || defined(__DOXYGEN__)
|
|
||||||
|
|
||||||
/** @brief USART0 serial driver identifier.*/
|
|
||||||
FullDuplexDriver COM1;
|
|
||||||
|
|
||||||
static uint8_t ib1[SERIAL_BUFFERS_SIZE];
|
|
||||||
static uint8_t ob1[SERIAL_BUFFERS_SIZE];
|
|
||||||
|
|
||||||
CH_IRQ_HANDLER(USART0TX_VECTOR) {
|
|
||||||
msg_t b;
|
|
||||||
|
|
||||||
CH_IRQ_PROLOGUE();
|
|
||||||
|
|
||||||
chSysLockFromIsr();
|
|
||||||
b = chFDDRequestDataI(&COM1);
|
|
||||||
chSysUnlockFromIsr();
|
|
||||||
if (b < Q_OK)
|
|
||||||
U0IE &= ~UTXIE0;
|
|
||||||
else
|
|
||||||
U0TXBUF = b;
|
|
||||||
|
|
||||||
CH_IRQ_EPILOGUE();
|
|
||||||
}
|
|
||||||
|
|
||||||
CH_IRQ_HANDLER(USART0RX_VECTOR) {
|
|
||||||
uint8_t urctl;
|
|
||||||
|
|
||||||
CH_IRQ_PROLOGUE();
|
|
||||||
|
|
||||||
if ((urctl = U0RCTL) & RXERR)
|
|
||||||
SetError(urctl, &COM1);
|
|
||||||
chSysLockFromIsr();
|
|
||||||
chFDDIncomingDataI(&COM1, U0RXBUF);
|
|
||||||
chSysUnlockFromIsr();
|
|
||||||
|
|
||||||
CH_IRQ_EPILOGUE();
|
|
||||||
}
|
|
||||||
|
|
||||||
static void OutNotify1(void) {
|
|
||||||
|
|
||||||
if (!(U0IE & UTXIE0)) {
|
|
||||||
chSysLockFromIsr();
|
|
||||||
U0TXBUF = (uint8_t)chFDDRequestDataI(&COM1);
|
|
||||||
chSysUnlockFromIsr();
|
|
||||||
U0IE |= UTXIE0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief USART0 setup.
|
|
||||||
* @details This function must be invoked with interrupts disabled.
|
|
||||||
* @param div The divider value as calculated by the @p UBR() macro.
|
|
||||||
* @param mod The value for the @p U0MCTL register.
|
|
||||||
* @param ctl The value for the @p U0CTL register.
|
|
||||||
* @note Does not reset the I/O queues.
|
|
||||||
*/
|
|
||||||
void usart0_setup(uint16_t div, uint8_t mod, uint8_t ctl) {
|
|
||||||
|
|
||||||
U0CTL = SWRST; /* Resets the USART, it should already be */
|
|
||||||
/* USART init */
|
|
||||||
U0TCTL = SSEL0 | SSEL1; /* SMCLK as clock source */
|
|
||||||
U0MCTL = mod; /* Modulator */
|
|
||||||
U0BR1 = (uint8_t)(div >> 8); /* Divider high */
|
|
||||||
U0BR0 = (uint8_t)(div >> 0); /* Divider low */
|
|
||||||
/* Clear USART status */
|
|
||||||
(void)U0RXBUF;
|
|
||||||
U0RCTL = 0;
|
|
||||||
/* USART enable */
|
|
||||||
P3SEL |= BV(4) + BV(5); /* I/O pins for USART 0 */
|
|
||||||
U0ME |= UTXE0 + URXE0; /* Enables the USART */
|
|
||||||
U0CTL = ctl & ~SWRST; /* Various settings, clears reset state */
|
|
||||||
U0IE |= URXIE0; /* Enables RX interrupt */
|
|
||||||
}
|
|
||||||
#endif /* USE_MSP430_USART0 */
|
|
||||||
|
|
||||||
#if USE_MSP430_USART1 || defined(__DOXYGEN__)
|
|
||||||
|
|
||||||
/** @brief USART1 serial driver identifier.*/
|
|
||||||
FullDuplexDriver COM2;
|
|
||||||
|
|
||||||
static uint8_t ib2[SERIAL_BUFFERS_SIZE];
|
|
||||||
static uint8_t ob2[SERIAL_BUFFERS_SIZE];
|
|
||||||
|
|
||||||
CH_IRQ_HANDLER(USART1TX_VECTOR) {
|
|
||||||
msg_t b;
|
|
||||||
|
|
||||||
CH_IRQ_PROLOGUE();
|
|
||||||
|
|
||||||
chSysLockFromIsr();
|
|
||||||
b = chFDDRequestDataI(&COM2);
|
|
||||||
chSysUnlockFromIsr();
|
|
||||||
if (b < Q_OK)
|
|
||||||
U1IE &= ~UTXIE1;
|
|
||||||
else
|
|
||||||
U1TXBUF = b;
|
|
||||||
|
|
||||||
CH_IRQ_EPILOGUE();
|
|
||||||
}
|
|
||||||
|
|
||||||
CH_IRQ_HANDLER(USART1RX_VECTOR) {
|
|
||||||
uint8_t urctl;
|
|
||||||
|
|
||||||
CH_IRQ_PROLOGUE();
|
|
||||||
|
|
||||||
if ((urctl = U1RCTL) & RXERR)
|
|
||||||
SetError(urctl, &COM2);
|
|
||||||
chSysLockFromIsr();
|
|
||||||
chFDDIncomingDataI(&COM2, U1RXBUF);
|
|
||||||
chSysUnlockFromIsr();
|
|
||||||
|
|
||||||
CH_IRQ_EPILOGUE();
|
|
||||||
}
|
|
||||||
|
|
||||||
static void OutNotify2(void) {
|
|
||||||
|
|
||||||
if (!(U1IE & UTXIE1)) {
|
|
||||||
U1TXBUF = (uint8_t)chFDDRequestDataI(&COM2);
|
|
||||||
U1IE |= UTXIE1;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief USART1 setup.
|
|
||||||
* @details This function must be invoked with interrupts disabled.
|
|
||||||
* @param[in] div the divider value as calculated by the @p UBR() macro
|
|
||||||
* @param[in] mod the value for the @p U1MCTL register
|
|
||||||
* @param[in] ctl the value for the @p U1CTL register.
|
|
||||||
* @note Must be invoked with interrupts disabled.
|
|
||||||
* @note Does not reset the I/O queues.
|
|
||||||
*/
|
|
||||||
void usart1_setup(uint16_t div, uint8_t mod, uint8_t ctl) {
|
|
||||||
|
|
||||||
U1CTL = SWRST; /* Resets the USART, it should already be */
|
|
||||||
/* USART init */
|
|
||||||
U1TCTL = SSEL0 | SSEL1; /* SMCLK as clock source */
|
|
||||||
U1MCTL = mod; /* Modulator */
|
|
||||||
U1BR1 = (uint8_t)(div >> 8); /* Divider high */
|
|
||||||
U1BR0 = (uint8_t)(div >> 0); /* Divider low */
|
|
||||||
/* Clear USART status */
|
|
||||||
(void)U0RXBUF;
|
|
||||||
U1RCTL = 0;
|
|
||||||
/* USART enable */
|
|
||||||
P3SEL |= BV(6) + BV(7); /* I/O pins for USART 1 */
|
|
||||||
U1ME |= UTXE0 + URXE0; /* Enables the USART */
|
|
||||||
U1CTL = ctl & ~SWRST; /* Various settings, clears reset state */
|
|
||||||
U1IE |= URXIE0; /* Enables RX interrupt */
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief Serial driver initialization.
|
|
||||||
* @note The serial ports are initialized at @p 38400-8-N-1 by default.
|
|
||||||
*/
|
|
||||||
void serial_init(void) {
|
|
||||||
|
|
||||||
/* I/O queues setup.*/
|
|
||||||
#if USE_MSP430_USART0
|
|
||||||
chFDDInit(&COM1, ib1, sizeof ib1, NULL, ob1, sizeof ob1, OutNotify1);
|
|
||||||
usart0_setup(UBR(DEFAULT_USART_BITRATE), 0, CHAR);
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#if USE_MSP430_USART1
|
|
||||||
chFDDInit(&COM2, ib2, sizeof ib2, NULL, ob2, sizeof ob2, OutNotify2);
|
|
||||||
usart1_setup(UBR(DEFAULT_USART_BITRATE), 0, CHAR);
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
|
|
||||||
/** @} */
|
|
||||||
|
|
@ -1,91 +0,0 @@
|
||||||
/*
|
|
||||||
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
|
||||||
|
|
||||||
This file is part of ChibiOS/RT.
|
|
||||||
|
|
||||||
ChibiOS/RT is free software; you can redistribute it and/or modify
|
|
||||||
it under the terms of the GNU General Public License as published by
|
|
||||||
the Free Software Foundation; either version 3 of the License, or
|
|
||||||
(at your option) any later version.
|
|
||||||
|
|
||||||
ChibiOS/RT is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
GNU General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU General Public License
|
|
||||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file MSP430/msp430_serial.h
|
|
||||||
* @brief MSP430 Serial driver macros and structures.
|
|
||||||
* @addtogroup MSP430_SERIAL
|
|
||||||
* @{
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef _MSP430_SERIAL_H_
|
|
||||||
#define _MSP430_SERIAL_H_
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief Serial buffers size.
|
|
||||||
* @details Configuration parameter, you can change the depth of the queue
|
|
||||||
* buffers depending on the requirements of your application.
|
|
||||||
* @note The default is 32 bytes for both the transmission and receive buffers.
|
|
||||||
*/
|
|
||||||
#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
|
|
||||||
#define SERIAL_BUFFERS_SIZE 32
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief Default bit rate.
|
|
||||||
* @details Configuration parameter, at startup the UARTs are configured at
|
|
||||||
* this speed.
|
|
||||||
* @note It is possible to use @p SetUART() in order to change the working
|
|
||||||
* parameters at runtime.
|
|
||||||
*/
|
|
||||||
#if !defined(DEFAULT_USART_BITRATE) || defined(__DOXYGEN__)
|
|
||||||
#define DEFAULT_USART_BITRATE 38400
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief USART0 driver enable switch.
|
|
||||||
* @details If set to @p TRUE the support for USART0 is included.
|
|
||||||
* @note The default is @p TRUE.
|
|
||||||
*/
|
|
||||||
#if !defined(USE_MSP430_USART0) || defined(__DOXYGEN__)
|
|
||||||
#define USE_MSP430_USART0 TRUE
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief USART1 driver enable switch.
|
|
||||||
* @details If set to @p TRUE the support for USART1 is included.
|
|
||||||
* @note The default is @p FALSE.
|
|
||||||
*/
|
|
||||||
#if !defined(USE_MSP430_USART1) || defined(__DOXYGEN__)
|
|
||||||
#define USE_MSP430_USART1 FALSE
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief Macro for baud rate computation.
|
|
||||||
* @note Make sure the final baud rate is within tolerance.
|
|
||||||
*/
|
|
||||||
#define UBR(b) (SMCLK / (b))
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
extern "C" {
|
|
||||||
#endif
|
|
||||||
void serial_init(void);
|
|
||||||
void usart0_setup(uint16_t div, uint8_t mod, uint8_t ctl);
|
|
||||||
void usart1_setup(uint16_t div, uint8_t mod, uint8_t ctl);
|
|
||||||
#ifdef __cplusplus
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** @cond never*/
|
|
||||||
extern FullDuplexDriver COM1, COM2;
|
|
||||||
/** @endcond*/
|
|
||||||
|
|
||||||
#endif /* _MSP430_SERIAL_H_ */
|
|
||||||
|
|
||||||
/** @} */
|
|
||||||
Loading…
Reference in New Issue