# # For a description of the syntax of this configuration file, # see the file kconfig-language.txt in the NuttX tools repository. # config EXAMPLES_FLOWC tristate "Serial flow control example" default n depends on SERIAL_TERMIOS ---help--- Enable the serial hardware flow control test. Serial termios support must be enabled. CONFIG_SERIAL_TERMIOS=y In addition, you will need these related serial driver settings (the actual values of the watermark setting may be tuned to suit your preferences) CONFIG_SERIAL_IFLOWCONTROL=y CONFIG_SERIAL_IFLOWCONTROL_WATERMARKS=y CONFIG_SERIAL_IFLOWCONTROL_LOWER_WATERMARK=25 CONFIG_SERIAL_IFLOWCONTROL_UPPER_WATERMARK=75 And for the CDC/ACM driver in particular: CONFIG_CDCACM_IFLOWCONTROL=y There are hooks in place for output flow control but these have not been exercised. if EXAMPLES_FLOWC config EXAMPLES_FLOWC_INPUT bool "Verify input flow control" default y # depends on SERIAL_IFLOWCONTROL config EXAMPLES_FLOWC_OUTPUT bool "Verify output flow control" default y # depends on SERIAL_OFLOWCONTROL config EXAMPLES_FLOWC_SENDER1 bool "Target1 is the sender" default n ---help--- By default Target1 is the receiver and the host PC (or Target2) is the sender. That is the configuration you would to test RX flow control on the target. config EXAMPLES_FLOWC_PROGNAME1 string "Target1 program name" default "flowc" if !EXAMPLES_FLOWC_TARGET2 default "flowc1" if EXAMPLES_FLOWC_TARGET2 ---help--- This is the name of the Target1 program that will be used when the NSH ELF program is installed. config EXAMPLES_FLOWC_PRIORITY1 int "Target1 task priority" default 100 config EXAMPLES_FLOWC_STACKSIZE1 int "Target1 stack size" default 2048 config EXAMPLES_FLOWC_TARGET2 bool "Second endpoint is a target" default n ---help--- By default, the host PC is configured as the second endpoint of the FLOWC test. If this option is selected, then the second endpoint will be built into the FLASH image as well. This means that you can use two target boards to run the test with no host PC involvement. if EXAMPLES_FLOWC_TARGET2 config EXAMPLES_FLOWC_PROGNAME2 string "Target2 program name" default "flowc2" ---help--- This is the name of the Target2 program that will be used when the NSH ELF program is installed. config EXAMPLES_FLOWC_PRIORITY2 int "Target2 task priority" default 100 config EXAMPLES_FLOWC_STACKSIZE2 int "Target2 stack size" default 2048 endif # EXAMPLES_FLOWC_TARGET2 config EXAMPLES_FLOWC_RECEIVER_BUFSIZE int "Receiver buffer size" default 64 config EXAMPLES_FLOWC_RECEIVER_DELAY int "Receiver read delay (msec)" default 100 config EXAMPLES_FLOWC_RECEVER_DEVNAME string "Default TTY device for receiver" default "/dev/ttyACM0" config EXAMPLES_FLOWC_SENDER_DEVNAME string "Default TTY device for sender" default "/dev/ttyACM0" endif # EXAMPLES_FLOWC