I am trying to connect to a raspberry pi zero (and a pi3) via uart and USB (USB to TTL YP-01)
I am connected to pin 8, pin 10 and a ground. tx -> rx, rx -> tx
I have tried everything on this url
How do I make serial work on the Raspberry Pi3 (PiZeroW, Pi4 or later models)
and I still get nothing in minicom
cmdline.txt:
dwc_otg.lpm_enable=0 console=tty1 console=ttyUSB1,9600 root=PARTUUID=aae5ae38-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
config.txt:
dtoverlay=pi3-disable-bt
enable_uart=1
ls /dev:
localhost: # ls /dev/
acpi_thermal_rel fuse log loop26 loop44 loop62 null snd tty2 tty38 tty56 ttyS16 ttyS6 vcs6 vfio
autofs gpiochip0 loop0 loop27 loop45 loop63 nvram stderr tty20 tty39 tty57 ttyS17 ttyS7 vcs7 vga_arbiter
block hidraw0 loop1 loop28 loop46 loop7 port stdin tty21 tty4 tty58 ttyS18 ttyS8 vcsa vhci
bsg hidraw1 loop10 loop29 loop47 loop8 ppp stdout tty22 tty40 tty59 ttyS19 ttyS9 vcsa1 vhost-net
btrfs-control hidraw2 loop11 loop3 loop48 loop9 psaux system tty23 tty41 tty6 ttyS2 ttyUSB0 vcsa10 vhost-vsock
bus HID-SENSOR-2000e1.2.auto loop12 loop30 loop49 loop-control ptmx tpm0 tty24 tty42 tty60 ttyS20 ttyUSB1 vcsa2 video0
char hpet loop13 loop31 loop5 lp0 pts tpmrm0 tty25 tty43 tty61 ttyS21 udmabuf vcsa3 video1
console hugepages loop14 loop32 loop50 lp1 random tty tty26 tty44 tty62 ttyS22 uhid vcsa4 watchdog
core hwrng loop15 loop33 loop51 lp2 rfkill tty0 tty27 tty45 tty63 ttyS23 uinput vcsa5 watchdog0
cpu iio:device0 loop16 loop34 loop52 lp3 rtc tty1 tty28 tty46 tty7 ttyS24 urandom vcsa6 wmi
cpu_dma_latency iio:device1 loop17 loop35 loop53 mapper rtc0 tty10 tty29 tty47 tty8 ttyS25 usb vcsa7 xconsole
cuse iio:device2 loop18 loop36 loop54 mcelog sda tty11 tty3 tty48 tty9 ttyS26 userio vcsu zero
disk iio:device3 loop19 loop37 loop55 media0 sda1 tty12 tty30 tty49 ttyS0 ttyS27 v4l vcsu1
dm-0 iio:device4 loop2 loop38 loop56 mei0 sda2 tty13 tty31 tty5 ttyS1 ttyS28 vcs vcsu10
dm-1 iio:device5 loop20 loop39 loop57 mem sda3 tty14 tty32 tty50 ttyS10 ttyS29 vcs1 vcsu2
dri initctl loop21 loop4 loop58 memory_bandwidth sda4 tty15 tty33 tty51 ttyS11 ttyS3 vcs10 vcsu3
drm_dp_aux0 input loop22 loop40 loop59 mqueue serial tty16 tty34 tty52 ttyS12 ttyS30 vcs2 vcsu4
fb0 kmsg loop23 loop41 loop6 net sg0 tty17 tty35 tty53 ttyS13 ttyS31 vcs3 vcsu5
fd kvm loop24 loop42 loop60 network_latency shm tty18 tty36 tty54 ttyS14 ttyS4 vcs4 vcsu6
full lightnvm loop25 loop43 loop61 network_throughput snapshot tty19 tty37 tty55 ttyS15 ttyS5 vcs5 vcsu7
connection string:
minicom -c on -D /dev/ttyUSB1
stty -F /dev/ttyUSB1:
speed 9600 baud; line = 0;
-brkint -imaxbel
What is the trick to bring up uart on a USB ttl?