from pwn import *

MSP430_EMU = args['MSP430_EMU']
MSP430_GDB = 'msp430-gdb'
BINARY = sys.argv[1]

emu = process([MSP430_EMU, '-g', BINARY])
dbg = process([MSP430_GDB, '-ex', 'target remote localhost:3713'])
dbg.sendline(b'continue')

print(emu.recvregex(b'> $').decode('utf-8'))

emu.sendline(b'12345678')  # any 8-char password does the trick
print(emu.recvall().decode('utf-8'))