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HaaS EDU K1设备资源 之 IIC
阅读量:118 次
发布时间:2019-02-26

本文共 958 字,大约阅读时间需要 3 分钟。

IIC??????PHILIPS??????????????????????????????????????SDA????SCL?????????????????400kbps???

IIC?????????????????????????????????????

  • ?????SCL????????????SDA???????????????????????
  • ?????SCL??????????????SDA?????????????????????
  • ????????????8????????????????????????????????????????????????????????

HaaS1000??????I2C?????????????????1.4Mbps???I2C??????????GPIO???????

HAL???AliOS Things???MCU?????????????????include/aos/hal?????????platform/mcu/haas1000/hal/?

HAL??????API?

  • hal_i2c_init??????I2C???
  • hal_i2c_master_send???????????????
  • hal_i2c_master_recv???????????????
  • hal_i2c_slave_send????????????????
  • hal_i2c_slave_recv????????????????
  • hal_i2c_mem_write?????????????
  • hal_i2c_mem_read?????????????
  • hal_i2c_finalize?????I2C???

I2C???????

  • I2C_MODE_MASTER????
  • I2C_MODE_SLAVE?????
  • I2C_MEM_ADDR_SIZE_8BIT?8???
  • I2C_MEM_ADDR_SIZE_16BIT?16???
  • I2C_BUS_BIT_RATES_100K?400K?3400K?????
  • I2C_HAL_ADDRESS_WIDTH_7BIT?10BIT?????

HaaS EDU K1????I2C1?GPIO_P0_2?GPIO_P0_3??????

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