Files
luban-lite-t3e-pro/bsp/examples_bare/test-can/test_can.c
刘可亮 0a13af6a1d V1.0.5
2024-06-04 19:00:30 +08:00

113 lines
3.0 KiB
C

/*
* Copyright (c) 2023-2024, ArtInChip Technology Co., Ltd
*
* SPDX-License-Identifier: Apache-2.0
*
* Authors: dwj <weijie.ding@artinchip.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <console.h>
#include <aic_common.h>
#include <aic_errno.h>
#include <aic_hal_can.h>
#define CAN_TEST_ID 0x123
volatile uint8_t rx_done = 0;
#define CAN_HELP \
"test_can <CAN BUS ID>:\n" \
"This program is used to test self-test mode of CAN\n" \
"You should connect TX and RX\n" \
"Example:\n" \
"test_can 0 test CAN0 self-test mode\n" \
"test_can 1 test CAN1 self-test mode\n"
void can_usage(void)
{
puts(CAN_HELP);
}
void can_rx_callback(can_handle * phandle, void *arg)
{
if ((long)arg == CAN_EVENT_RX_IND)
rx_done = 1;
}
static int test_can_example(int argc, char *argv[])
{
int idx;
can_handle can;
can_msg_t msg, rx_msg;
can_filter_config_t filter_config;
if (argc != 2)
{
can_usage();
return 0;
}
idx = atoi(argv[1]);
/* Initialize CAN */
hal_can_init(&can, idx);
/* Set can baudrate */
hal_can_ioctl(&can, CAN_IOCTL_SET_BAUDRATE, (void *)1000000UL);
/* Set can mode */
hal_can_ioctl(&can, CAN_IOCTL_SET_MODE, (void *)CAN_SELFTEST_MODE);
/* Configure interrupt routine */
aicos_request_irq(CAN0_IRQn + idx, hal_can_isr_handler,
0, NULL, (void *)&can);
hal_can_enable_interrupt(&can);
/* Set can callback */
hal_can_attach_callback(&can, can_rx_callback, NULL);
/* Set can filter, only frame with ID CAN_TEST_ID is received */
memset(&filter_config, 0, sizeof(filter_config));
filter_config.filter_mode = SINGLE_FILTER_MODE;
filter_config.is_eff = 0;
filter_config.rxcode.sfs.id_filter = CAN_TEST_ID;
filter_config.rxmask.sfs.id_filter = 0;
filter_config.rxmask.sfs.rtr_filter = 1;
filter_config.rxmask.sfs.data0_filter = 0xff;
filter_config.rxmask.sfs.data1_filter = 0xff;
hal_can_ioctl(&can, CAN_IOCTL_SET_FILTER, &filter_config);
/* Send CAN frame */
msg.id = CAN_TEST_ID;
msg.ide = 0;
msg.rtr = 0;
msg.dlc = 8;
msg.data[0] = 0x00;
msg.data[1] = 0x11;
msg.data[2] = 0x22;
msg.data[3] = 0x33;
msg.data[4] = 0x44;
msg.data[5] = 0x55;
msg.data[6] = 0x66;
msg.data[7] = 0x77;
hal_can_send_frame(&can, &msg, SELF_REQ);
/* Receive CAN frame*/
while (!rx_done)
{
}
rx_done = 0;
hal_can_receive_frame(&can, &rx_msg);
printf("self-test received msg:\n\t");
for (int i =0; i < rx_msg.dlc; i++)
{
printf("%02x ", rx_msg.data[i]);
}
printf("\n");
hal_can_detach_callback(&can);
hal_can_uninit(&can);
return 0;
}
CONSOLE_CMD(test_can, test_can_example, "CAN self-test example");