I get the following output: on AOSP Target Device: # stty -F /dev/ttyMSM0 -a speed 115200 baud; rows 0; columns 0; line = 0; intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = <undef>; discard = <undef>; min = 1; time = 0; -parenb -parodd -cmspar cs8 -hupcl -cstopb cread clocal -crtscts ignbrk -brkint ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl -ixon -ixoff -iuclc -ixany -imaxbel -iutf8 -opost -olcuc -ocrnl -onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 -isig -icanon -iexten -echo -echoe -echok -echonl -noflsh -xcase -tostop -echoprt -echoctl -echoke -flusho -extproc on Ubuntu/Linux machine: speed 115200 baud; rows 0; columns 0; line = 0; intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; discard = ^O; min = 1; time = 0; -parenb -parodd -cmspar cs8 -hupcl -cstopb cread clocal -crtscts ignbrk -brkint ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl -ixon -ixoff -iuclc -ixany -imaxbel -iutf8 -opost -olcuc -ocrnl -onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 -isig -icanon -iexten -echo -echoe -echok -echonl -noflsh -xcase -tostop -echoprt -echoctl -echoke -flusho -extproc On Tue, Sep 10, 2024 at 5:39 AM Michael Richardson <mcr@xxxxxxxxxxxx> wrote: > > > Given that you have: > > local # Do not use modem control lines; assume a > > then pppd ought to tell the TTL to ignore DCD drops. > Is this a real serial connection, or actually serial over USB or PPPoE? > Looks like USB0. USB/TTL adapter I bet. Are other pins being used for > (JTAG) programming, reset? > > Maybe "stty -F /dev/ttyUSB0 -a" (as root) during your magic 6s. > Is clocal set? > >
