#include "rtconfig.h" #if defined BSP_USING_I2C #include "drv_log.h" #include "drv_i2c.h" #include "fi2c.h" #include "fi2c_hw.h" #include "fio_mux.h" #include "fmio_hw.h" #include "fmio.h" #include "fparameters.h" static struct rt_i2c_bus_device *i2c_test_bus = RT_NULL; int i2c_sample(int argc, char *argv[]) { char name[RT_NAME_MAX]; #if defined(FIREFLY_DEMO_BOARD) rt_strncpy(name, "MIO1", RT_NAME_MAX); #endif #if defined(E2000D_DEMO_BOARD)||defined(E2000Q_DEMO_BOARD) rt_strncpy(name, "MIO15", RT_NAME_MAX); #endif i2c_test_bus = (struct rt_i2c_bus_device *)rt_device_find(name); rt_uint8_t read_buf[2] = {0x0, 0x0}; rt_uint8_t write_buf[2] = {0x0, 0x1}; if (i2c_test_bus == RT_NULL) { rt_kprintf("can't find %s device!\n", name); } else { rt_kprintf("find %s device!!!!\n", name); } struct rt_i2c_msg read_msgs; read_msgs.addr = 0x50; read_msgs.flags = RT_I2C_RD; read_msgs.buf = read_buf; read_msgs.len = 1; rt_i2c_transfer(i2c_test_bus, &read_msgs, 1); rt_kprintf("read_buf = %x\n", *read_msgs.buf); struct rt_i2c_msg write_msgs; write_msgs.addr = 0x50; write_msgs.flags = RT_I2C_WR; write_msgs.buf = write_buf; write_msgs.len = 1; rt_i2c_transfer(i2c_test_bus, &write_msgs, 1); read_buf[0] = 0x02; rt_i2c_transfer(i2c_test_bus, &read_msgs, 1); rt_kprintf("read_buf = %x\n", *read_msgs.buf); return RT_EOK; } MSH_CMD_EXPORT(i2c_sample, i2c device sample); #endif