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-rw-r--r--testhal/LPC17xx/CAN/main.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/testhal/LPC17xx/CAN/main.c b/testhal/LPC17xx/CAN/main.c
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+++ b/testhal/LPC17xx/CAN/main.c
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+/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+struct can_instance {
+ CANDriver *canp;
+ uint32_t led;
+};
+
+static const struct can_instance can1 = {&CAND1, GPIO0_LED2_RED};
+static const struct can_instance can2 = {&CAND2, GPIO0_LED3_EXT}; /* Connect LED to board. */
+
+#if LPC17xx_CAN_USE_FILTER
+static const CANFilterExt cfe_id_table[2] = {
+ CANFilterExtEntry(0, 0x0ABCDEF0),
+ CANFilterExtEntry(1, 0x01234567)
+
+};
+
+static const CANFilterConfig canfcfg = {
+ 0,
+ NULL,
+ 0,
+ NULL,
+ 0,
+ NULL,
+ 0,
+ cfe_id_table,
+ 2,
+ NULL,
+ 0
+};
+#endif
+
+/*
+ * Operating mode
+ */
+static const CANConfig cancfg = {
+ 0,
+ CANBTR_SJW(0) | CANBTR_TESG2(1) |
+ CANBTR_TESG1(8) | CANBTR_BRP(20)
+};
+
+/*
+ * Receiver thread.
+ */
+static WORKING_AREA(can_rx1_wa, 256);
+static WORKING_AREA(can_rx2_wa, 256);
+static msg_t can_rx(void *p) {
+ struct can_instance *cip = p;
+ EventListener el;
+ CANRxFrame rxmsg;
+
+ (void)p;
+ chRegSetThreadName("receiver");
+ chEvtRegister(&cip->canp->rxfull_event, &el, 0);
+ while(!chThdShouldTerminate()) {
+ if (chEvtWaitAnyTimeout(ALL_EVENTS, MS2ST(100)) == 0)
+ continue;
+ while (canReceive(cip->canp, CAN_ANY_MAILBOX,
+ &rxmsg, TIME_IMMEDIATE) == RDY_OK) {
+ /* Process message.*/
+ palTogglePad(GPIO0, cip->led);
+ }
+ }
+ chEvtUnregister(&CAND1.rxfull_event, &el);
+ return 0;
+}
+
+/*
+ * Transmitter thread.
+ */
+static WORKING_AREA(can_tx_wa, 256);
+static msg_t can_tx(void * p) {
+ CANTxFrame txmsg_can1;
+ CANTxFrame txmsg_can2;
+
+ (void)p;
+ chRegSetThreadName("transmitter");
+ txmsg_can1.IDE = CAN_IDE_EXT;
+ txmsg_can1.EID = 0x01234567;
+ txmsg_can1.RTR = CAN_RTR_DATA;
+ txmsg_can1.DLC = 8;
+ txmsg_can1.data32[0] = 0x55AA55AA;
+ txmsg_can1.data32[1] = 0x00FF00FF;
+
+ txmsg_can2.IDE = CAN_IDE_EXT;
+ txmsg_can2.EID = 0x0ABCDEF0;
+ txmsg_can2.RTR = CAN_RTR_DATA;
+ txmsg_can2.DLC = 8;
+ txmsg_can2.data32[0] = 0x66AA66AA;
+ txmsg_can2.data32[1] = 0x44FF44FF;
+
+ while (!chThdShouldTerminate()) {
+ canTransmit(&CAND1, CAN_ANY_MAILBOX, &txmsg_can1, MS2ST(100));
+ canTransmit(&CAND2, CAN_ANY_MAILBOX, &txmsg_can2, MS2ST(100));
+ chThdSleepMilliseconds(500);
+ }
+ return 0;
+}
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+
+ /*
+ * System initializations.
+ * - HAL initialization, this also initializes the configured device drivers
+ * and performs the board-specific initializations.
+ * - Kernel initialization, the main() function becomes a thread and the
+ * RTOS is active.
+ */
+ halInit();
+ chSysInit();
+
+ /*
+ * Activates the CAN drivers 1 and 2.
+ */
+ canStart(&CAND1, &cancfg);
+ canStart(&CAND2, &cancfg);
+
+#if LPC17xx_CAN_USE_FILTER
+ canSetFilter(&canfcfg);
+#endif
+ /*
+ * Starting the transmitter and receiver threads.
+ */
+ chThdCreateStatic(can_rx1_wa, sizeof(can_rx1_wa), NORMALPRIO + 7,
+ can_rx, (void *)&can1);
+ chThdCreateStatic(can_rx2_wa, sizeof(can_rx2_wa), NORMALPRIO + 7,
+ can_rx, (void *)&can2);
+ chThdCreateStatic(can_tx_wa, sizeof(can_tx_wa), NORMALPRIO + 7,
+ can_tx, NULL);
+
+ /*
+ * Normal main() thread activity, in this demo it does nothing.
+ */
+ while (TRUE) {
+ chThdSleepMilliseconds(500);
+ }
+ return 0;
+}