HAL State structure definition.
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Enumerations |
| enum | HAL_I2C_StateTypeDef {
HAL_I2C_STATE_RESET = 0x00U,
HAL_I2C_STATE_READY = 0x20U,
HAL_I2C_STATE_BUSY = 0x24U,
HAL_I2C_STATE_BUSY_TX = 0x21U,
HAL_I2C_STATE_BUSY_RX = 0x22U,
HAL_I2C_STATE_LISTEN = 0x28U,
HAL_I2C_STATE_BUSY_TX_LISTEN = 0x29U,
HAL_I2C_STATE_BUSY_RX_LISTEN = 0x2AU,
HAL_I2C_STATE_ABORT = 0x60U,
HAL_I2C_STATE_TIMEOUT = 0xA0U,
HAL_I2C_STATE_ERROR = 0xE0U
} |
Detailed Description
HAL State structure definition.
- Note:
- HAL I2C State value coding follow below described bitmap :
b7-b6 Error information
00 : No Error
01 : Abort (Abort user request on going)
10 : Timeout
11 : Error
b5 Peripheral initialization status
0 : Reset (peripheral not initialized)
1 : Init done (peripheral initialized and ready to use. HAL I2C Init function called)
b4 (not used)
x : Should be set to 0
b3
0 : Ready or Busy (No Listen mode ongoing)
1 : Listen (peripheral in Address Listen Mode)
b2 Intrinsic process state
0 : Ready
1 : Busy (peripheral busy with some configuration or internal operations)
b1 Rx state
0 : Ready (no Rx operation ongoing)
1 : Busy (Rx operation ongoing)
b0 Tx state
0 : Ready (no Tx operation ongoing)
1 : Busy (Tx operation ongoing)
Enumeration Type Documentation
- Enumerator:
| HAL_I2C_STATE_RESET |
Peripheral is not yet Initialized
|
| HAL_I2C_STATE_READY |
Peripheral Initialized and ready for use
|
| HAL_I2C_STATE_BUSY |
An internal process is ongoing
|
| HAL_I2C_STATE_BUSY_TX |
Data Transmission process is ongoing
|
| HAL_I2C_STATE_BUSY_RX |
Data Reception process is ongoing
|
| HAL_I2C_STATE_LISTEN |
Address Listen Mode is ongoing
|
| HAL_I2C_STATE_BUSY_TX_LISTEN |
Address Listen Mode and Data Transmission process is ongoing
|
| HAL_I2C_STATE_BUSY_RX_LISTEN |
Address Listen Mode and Data Reception process is ongoing
|
| HAL_I2C_STATE_ABORT |
Abort user request ongoing
|
| HAL_I2C_STATE_TIMEOUT |
Timeout state
|
| HAL_I2C_STATE_ERROR |
Error
|
Definition at line 108 of file stm32l4xx_hal_i2c.h.
