nebula.uart module

nebula.uart.escape_ansi(line)

class nebula.uart.uart(address=None, tftpserverip=None, fmc='fmcomms2', baudrate=115200, logfilename='uart.log', bootargs='console=ttyPS0,115200 root=/dev/mmcblk0p2 rw earlycon earlyprintk rootfstype=ext4 rootwait', dhcp=False, yamlfilename=None, board_name=None, period=30)

Bases: utils

UART Interface Handler

This class enables monitoring and sending commands over a UART interface. Monitoring is done using threads so monitor will not block.

Attributes

address

File descriptor of serial/COM interface

tftpserverip

IP address of TFTP server

logfilename

Filename to save output log of console

bootargs

Kernel bootargs

baudrate

Baudrate of UART interface in bits per second (default is 115200)

print_to_console

Print output of UART console. Output will appear in log file as well

boot()

Boot kernel from uboot menu

copy_reference(reference='BOOT.BIN.ORG', target='BOOT.BIN', done_string=None)

Using reference files

get_ip_address()

Read IP address of DUT using ip command from UART

get_local_mac_usbdev()

Read MAC Address of enumerated NIC on host from DUT (Pluto/M2K only)

get_uart_boot_message()

Read UART boot message on no-OS builds.

get_uart_command_for_linux(cmd, findstring)

Write command to UART and wait for a specific string

is_open()

load_system_uart(system_top_bit_filename, devtree_filename, kernel_filename)

Load complete system (bitstream, devtree, kernel) during uboot from UART (XMODEM)

load_system_uart_copy_to_sdcard(bootbin, devtree_filename, kernel_filename)

Load complete system (BOOT.BIN, devtree, kernel) during uboot from UART (XMODEM) and to SD card

load_system_uart_from_tftp()

Load complete system (bitstream, devtree, kernel) during uboot from TFTP

pipe_to_log_file(data, logappend=True, force=False)

Write data to log file

reinitialize_uart()

request_ip_dhcp(nic='eth0')

set_ip_static(address, nic='eth0')

start_log(logappend=False, force=False)

Trigger monitoring with UART interface

stop_log(force=False)

Stop monitoring with UART interface

update_boot_args()

Update kernel boot arguments during uboot

update_boot_files_from_running(system_top_bit_filename, devtree_filename, kernel_filename)

Load complete system (bitstream, devtree, kernel) during uboot from UART (XMODEM) from a running system

update_dev_tree()

Transfter devicetree over TFTP to system during uboot

update_fpga(skip_tftpload=False)

Transfter and load system_top.bit over TFTP to system during uboot

update_kernel()

Transfter kernel image over TFTP to system during uboot