/* * Copyright (c) 2020 AIIT XUOS Lab * XiUOS is licensed under Mulan PSL v2. * You can use this software according to the terms and conditions of the Mulan PSL v2. * You may obtain a copy of Mulan PSL v2 at: * http://license.coscl.org.cn/MulanPSL2 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. * See the Mulan PSL v2 for more details. */ /** * @file: test_can.c * @brief: a application of can function * @version: 1.1 * @author: AIIT XUOS Lab * @date: 2023/2/17 */ #include #include #include #include #ifdef ADD_XIZI_FEATURES void TestCAN(void) { // config CAN pin(SCL:34.SDA:35) in menuconfig int can_fd = PrivOpen(CAN_DEV_DRIVER, O_RDWR); if (can_fd < 0) { printf("open can_fd fd error:%d\n", can_fd); return; } printf("CAN open successful!\n"); struct PrivIoctlCfg ioctl_cfg; ioctl_cfg.ioctl_driver_type = CAN_TYPE; struct CanDriverConfigure can_config; can_config.brp = 8U; can_config.tbs1 = 1U + 8U; can_config.tbs2 = 4U; can_config.tsjw = 4U; can_config.mode = 0U; ioctl_cfg.args = (void *)&can_config; if (0 != PrivIoctl(can_fd, OPE_INT, &ioctl_cfg)) { printf("init can fd error %d\n", can_fd); PrivClose(can_fd); return; } printf("CAN configure successful!\n"); uint8_t data_buff[64u] = "12344321"; struct CanSendConfigure frame_send; frame_send.ide=0; frame_send.stdid = 0x55; frame_send.rtr=0; frame_send.data_lenth=8; struct CanSendConfigure frame_recv; uint8_t recv_buff[64u] = {}; frame_recv.data = recv_buff; // CAN write while (1) { // PrivTaskDelay(500); // PrivWrite(can_fd, &frame_send, NONE); // PrivTaskDelay(500); PrivRead(can_fd, &frame_recv, NONE); // if any data has received,Then printf message if(frame_recv.data_lenth > 0){ printf("ID %08x : \n",frame_recv.exdid); for(int i = 0; i < frame_recv.data_lenth; i ++) { printf("0x%x ", frame_recv.data[i]); } printf("\n"); frame_send.data = recv_buff; PrivWrite(can_fd, &frame_send, NONE); } } PrivClose(can_fd); return; } PRIV_SHELL_CMD_FUNCTION(TestCAN, a can test sample, PRIV_SHELL_CMD_MAIN_ATTR); #endif