单独作为一个语句的意思是：当I2C的状态位不显示为忙的时候，执行（空），因为你直接加分号了，条件满足，也是空执行。何在一起的意思是：如果I2C状态是忙状态，那么一直空运行，如果不忙，则执行IF语句。
单独作为一个语句的意思是：当I2C的状态位不显示为忙的时候，执行（空），因为你直接加分号了，条件满足，也是空执行。何在一起的意思是：如果I2C状态是忙状态，那么一直空运行，如果不忙，则执行IF语句。while(I2C_state != STATE_IDLE);该语句是： 判断I2C_state（I2C状态）是否等于STATE_IDLE （...
在我的i2c总线中,我有4个板(STM32L4感应器),有时其中一个会阻塞总线,而其他的则会因此停止通信。当我重新设置阻塞公共汽车的那块时,所有的板都重新开始工作。 在我的调试中,当HAL_I2C_GetState(&hi2c3)返回HAL_I2C_STATE_BUSY_RX,甚至我的其他i2c函数HAL_I2C_Slave_Receive_IT和HAL_I2C_Slave_Transmit_I...
ipd: 0x80中的ipd很可能是指I2C通信过程中的某个内部状态或寄存器值。0x80是一个十六进制数,表示在发生超时错误时,某个与I2C通信相关的状态寄存器或数据寄存器中的值为128(十进制)。具体的含义可能依赖于具体的硬件实现和驱动程序的设计,没有更多上下文很难给出确切的解释。 3. 解释state: 3表示的状态是什么 st...
I2C Ducati 749/999 Tail Light I finished this project a while ago, but never documented it. This is a taillight I made for my 749 before I sold it. I currently have a 999 so maybe I will make another one someday, but the 999 rarely changes out of it’s track/race clothes. I...
* @I2C_DRV_ACPI_WAIVE_D0_PROBE: Don't put the device in D0 state for probe */ enum i2c_driver_flags { I2C_DRV_ACPI_WAIVE_D0_PROBE = BIT(0), }; /** * struct i2c_driver - represent an I2C device driver * @class: What kind of i2c device we instantiate (for detect) @@ -2...
//current state of the i2c master channel status Lpi2c_Ip_MasterStateType i2c0_dev_curr_state; Lpi2c_Ip_BaudRateType i2c0_init_baudrate = { //set baudrate struct (heavily affects frequency) // currently set to ~400kHz .Prescaler = LPI2C_MASTER_PRESC_DIV_8, // <-- change...
TheI2CDeviceandSPIDevicehelper classes make managing transaction state on a bus easy. For example, they manage locking the bus to prevent other concurrent access. For SPI devices, it manages the chip select and protocol changes such as mode. For I2C, it manages the device address. ...
I want to know when the TCA9539's I2C is disrupted, the GPIO will remain output level or reset to the power-on state? Thanks! Haibin, In the event of a time-out or improper operation, the system controller can reset the TCA9549-Q1 by assertin...
However, if there was any error occurred on bus, I2c_LPI2C_pfSlaveStateOperation[] would always point to I2c_LPI2C_SlaveError(). In this state, I2c_LPI2C_SlaveProcessAddress() would never be invoked. There is no chance to setup new I2C communication session . I tried...