/** * @file main.c * @brief * * Copyright (c) 2021 Bouffalolab team * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you 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 "bflb_platform.h" #include "hal_i2c.h" #include "hal_uart.h" int main(void) { i2c_msg_t msg1; uint8_t buf[2] = { 0 }; bflb_platform_init(0); i2c_register(I2C0_INDEX, "i2c"); struct device *i2c0 = device_find("i2c"); if (i2c0) { MSG("device find success\r\n"); device_open(i2c0, 0); } msg1.buf = buf; msg1.flags = SUB_ADDR_1BYTE | I2C_RD; msg1.len = 2; msg1.slaveaddr = 0xEE >> 1; msg1.subaddr = 0xaa; if (i2c_transfer(i2c0, &msg1, 1) == 0) { MSG("\r\n read:%0x\r\n", msg1.buf[0] << 8 | msg1.buf[1]); BL_CASE_SUCCESS; } else BL_CASE_FAIL; while (1) { bflb_platform_delay_ms(100); } }