esp-idf/components/freemodbus/Kconfig
Alex Lisitsyn f0eb9985b9 examples: freemodbus port slave basic implementation
This example adds functionality to support basic communication in RS485 networks using Modbus protocol.
This example uses FreeModbus stack and regular UART driver API to communicate in RS485 half duplex mode.
Added initial support of modbus controller pure C api to access device parameters over Modbus transport.
Move freemodbus stack and port files into components folder
Move the modbus_controller interface into components idf folder
Source files updated after review.
Add modbus interface documentation docs/en/api-reference/protocols/modbus.rst
porttimer.c: fix bug with timer1 selected in the Kconfig
Add support of cmake system (added cmake files)

Closes https://github.com/espressif/esp-idf/issues/858
2018-10-17 12:47:12 +02:00

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menu "Modbus configuration"
config MB_UART_RXD
int "UART RXD pin number"
range 0 34
default 22
help
GPIO number for UART RX pin. See UART documentation for more information
about available pin numbers for UART.
config MB_UART_TXD
int "UART TXD pin number"
range 0 34
default 23
help
GPIO number for UART TX pin. See UART documentation for more information
about available pin numbers for UART.
config MB_UART_RTS
int "UART RTS pin number"
range 0 34
default 18
help
GPIO number for UART RTS pin. This pin is connected to
~RE/DE pin of RS485 transceiver to switch direction.
config MB_QUEUE_LENGTH
int "Modbus serial task queue length"
range 0 200
default 20
help
Modbus serial driver queue length. It is used by event queue task.
See the serial driver API for more information.
config MB_SERIAL_TASK_STACK_SIZE
int "Modbus serial task stack size"
range 768 8192
default 2048
help
Modbus serial task stack size for event queue task.
It may be adjusted when debugging is enabled (for example).
config MB_SERIAL_BUF_SIZE
int "Modbus serial task RX/TX buffer size"
range 0 2048
default 256
help
Modbus serial task RX and TX buffer size for UART driver initialization.
This buffer is used for modbus frame transfer. The Modbus protocol maximum
frame size is 256 bytes. Bigger size can be used for non standard implementations.
config MB_SERIAL_TASK_PRIO
int "Modbus serial task priority"
range 3 10
default 10
help
Modbus UART driver event task priority.
The priority of Modbus controller task is equal to (CONFIG_MB_SERIAL_TASK_PRIO - 1).
config MB_CONTROLLER_SLAVE_ID_SUPPORT
bool "Modbus controller slave ID support"
default n
help
Modbus slave ID support enable.
When enabled the Modbus <Report Slave ID> command is supported by stack.
config MB_CONTROLLER_SLAVE_ID
hex "Modbus controller slave ID"
range 0 4294967295
default 0x00112233
depends on MB_CONTROLLER_SLAVE_ID_SUPPORT
help
Modbus slave ID value to identify modbus device
in the network using <Report Slave ID> command.
Most significant byte of ID is used as short device ID and
other three bytes used as long ID.
config MB_CONTROLLER_NOTIFY_TIMEOUT
int "Modbus controller notification timeout (ms)"
range 0 200
default 20
help
Modbus controller notification timeout in milliseconds.
This timeout is used to send notification about accessed parameters.
config MB_CONTROLLER_NOTIFY_QUEUE_SIZE
int "Modbus controller notification queue size"
range 0 200
default 20
help
Modbus controller notification queue size.
The notification queue is used to get information about accessed parameters.
config MB_CONTROLLER_STACK_SIZE
int "Modbus controller stack size"
range 0 8192
default 4096
help
Modbus controller task stack size. The Stack size may be adjusted when
debug mode is used which requires more stack size (for example).
config MB_EVENT_QUEUE_TIMEOUT
int "Modbus stack event queue timeout (ms)"
range 0 500
default 20
help
Modbus stack event queue timeout in milliseconds. This may help to optimize
Modbus stack event processing time.
config MB_TIMER_PORT_ENABLED
bool "Modbus stack use timer for 3.5T symbol time measurement"
default y
help
If this option is set the Modbus stack uses timer for T3.5 time measurement.
Else the internal UART TOUT timeout is used for 3.5T symbol time measurement.
config MB_TIMER_GROUP
int "Modbus Timer group number"
range 0 1
depends on MB_TIMER_PORT_ENABLED
default 0
help
Modbus Timer group number that is used for timeout measurement.
config MB_TIMER_INDEX
int "Modbus Timer index in the group"
range 0 1
depends on MB_TIMER_PORT_ENABLED
default 0
help
Modbus Timer Index in the group that is used for timeout measurement.
endmenu