forked from xuos/xiuos
71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file: test_i2c.c
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* @brief: a application of i2c function
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* @version: 1.1
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* @author: AIIT XUOS Lab
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* @date: 2022/12/17
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*/
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#include <stdio.h>
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#include <string.h>
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#include <transform.h>
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#ifdef ADD_XIZI_FETURES
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#define I2C_SLAVE_ADDRESS 0x0012U
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void TestI2C(void)
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{
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// config IIC pin(SCL:34.SDA:35) in menuconfig
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int iic_fd = PrivOpen(I2C_DEV_DRIVER, O_RDWR);
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if (iic_fd < 0)
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{
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printf("open iic_fd fd error:%d\n", iic_fd);
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return;
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}
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printf("IIC open successful!\n");
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// init iic
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uint16 iic_address = I2C_SLAVE_ADDRESS;
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struct PrivIoctlCfg ioctl_cfg;
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ioctl_cfg.ioctl_driver_type = I2C_TYPE;
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ioctl_cfg.args = (void *)&iic_address;
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if (0 != PrivIoctl(iic_fd, OPE_INT, &ioctl_cfg))
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{
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printf("ioctl iic fd error %d\n", iic_fd);
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PrivClose(iic_fd);
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return;
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}
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printf("IIC configure successful!\n");
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// I2C read and write
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char tmp_buff[100];
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while (1)
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{
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PrivTaskDelay(1000);
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PrivWrite(iic_fd, "Hello World!\n", sizeof("Hello World!\n"));
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printf("msg send:%s\n", "Hello World!\n");
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PrivTaskDelay(1000);
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memset(tmp_buff, 0, sizeof(tmp_buff));
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PrivRead(iic_fd, tmp_buff, sizeof(tmp_buff));
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printf("msg recv:%s\n", tmp_buff);
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}
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PrivClose(iic_fd);
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return;
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}
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PRIV_SHELL_CMD_FUNCTION(TestI2C, a iic test sample, PRIV_SHELL_CMD_MAIN_ATTR);
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#endif |