/** * @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 msg[2]; uint8_t buf1[8] = { 1, 2, 3, 4, 5, 6, 7, 8 }; uint8_t buf2[8] = { 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); } msg[0].buf = buf1; msg[0].flags = SUB_ADDR_2BYTE | I2C_WR; msg[0].len = 8; msg[0].slaveaddr = 0x50; msg[0].subaddr = 0x00; msg[1].buf = buf2; msg[1].flags = SUB_ADDR_2BYTE | I2C_RD; msg[1].len = 8; msg[1].slaveaddr = 0x50; msg[1].subaddr = 0x00; if (i2c_transfer(i2c0, &msg[0], 1) == 1) { BL_CASE_FAIL; while (1) { } } bflb_platform_delay_ms(10); if (i2c_transfer(i2c0, &msg[1], 1) == 1) { BL_CASE_FAIL; while (1) { } } for (uint8_t i = 0; i < 8; i++) { if (buf1[i] != buf2[i]) { BL_CASE_FAIL; while (1) { } } } BL_CASE_SUCCESS; while (1) { bflb_platform_delay_ms(100); } }