Tasks priorities configuration
The following configuration constants relate to the µC/FTPs OS port. For many OSs, the µC/FTPs task priority will need to be explicitly configured for the particular OS (consult the specific OS’s documentation for more information).
| Panel |
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| title | Table - Kernel Configuration |
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| Constant | Description | Possible Values |
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| FTPs_OS_CFG_SERVER_TASK_PRIO | Allows code to be generated to check arguments for functions that can be called by the user and, for functions which are internal but receive arguments from an API that the user can call. | Must be >= 1 | FTPs_OS_CFG_CTRL_TASK_PRIO | Enable/disable μC/HTTPs debug information: Internal constants assigned to global variables. | Must be >= 1 |
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We recommend to configure the Network Protocol Stack task priorities & FTP server tasks priorities as follows:
NET_OS_CFG_IF_TX_DEALLOC_TASK_PRIO (Highest)
FTPs_OS_CFG_SERVER_TASK_PRIO
FTPs_OS_CFG_CTRL_TASK_PRIO ( ... )
NET_OS_CFG_TMR_TASK_PRIO ( ... )
NET_OS_CFG_IF_RX_TASK_PRIO (Lowest )
We recommend that the uC/TCP-IP Timer task and network interface Receive task be lowe priority lower priority than almost all other application tasks; but we recommend that the network interface Transmit De-allocation task be higher priority than all application tasks that use uC/TCP-IP network services.
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On ARM processors, experience has shown that configuring the task stacks to 1024 OS_STK entries (4,096 bytes) is sufficient for most applications. Certainly, the stack sizes may be examined and reduced accordingly once the run-time behavior of the device has been analyzed and additional stack space deemed to be unnecessary.
| Panel |
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| title | Table - Stack Size Configuration for FTPs Tasks |
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| Constant | Description | Possible Values |
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| FTPs_OS_CFG_SERVER_TASK_STK_SIZE | Allows code to be generated to check arguments for functions that can be called by the user and, for functions which are internal but receive arguments from an API that the user can call. | Must be >= 1
1024 | FTPs_OS_CFG_CTRL_TASK_STK_SIZE | Enable/disable μC/HTTPs debug information: Internal constants assigned to global variables. | Must be >= 1
1024 |
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