Beaglebone green gateway

We are having a hard time getting the UART Groove port to communicate on RS485 dongle. Beaglebone Green Gateway.

I can’t even ping the rs485 uart grove port. Could you help me with this?

65.625458] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e7d000
[ 65.633096] pgd = ba82c288
[ 65.635816] [b6e7d000] *pgd=9b59c831, *pte=000f0183, *ppte=000f0a32
[ 65.866130] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e67000
[ 65.873770] pgd = cec51666
[ 65.876490] [b6e67000] *pgd=9c6bc831, *pte=000f0183, *ppte=000f0a32
[ 66.102585] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6ea2000
[ 66.110223] pgd = 8f3d894d
[ 66.112941] [b6ea2000] *pgd=9b129831, *pte=000f0183, *ppte=000f0a32
[ 66.331782] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e6a000
[ 66.339421] pgd = 3a0c028d
[ 66.342141] [b6e6a000] *pgd=99be4831, *pte=000f0183, *ppte=000f0a32
[ 66.656982] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e16000
[ 66.664620] pgd = eb9be3e9
[ 66.667339] [b6e16000] *pgd=9c61d831, *pte=000f0183, *ppte=000f0a32
[ 66.903594] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6dfc000
[ 66.911231] pgd = a175d94c
[ 66.913951] [b6dfc000] *pgd=99c4e831, *pte=000f0183, *ppte=000f0a32
[ 67.150921] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e23000
[ 67.158560] pgd = afa7b075
[ 67.161280] [b6e23000] *pgd=9b12c831, *pte=000f0183, *ppte=000f0a32
[ 67.383385] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e33000
[ 67.391021] pgd = 08aaa119
[ 67.393741] [b6e33000] *pgd=99bc3831, *pte=000f0183, *ppte=000f0a32
[ 67.665372] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6dfa000
[ 67.673010] pgd = 7a92930c
[ 67.675731] [b6dfa000] *pgd=99bac831, *pte=000f0183, *ppte=000f0a32
[ 68.541483] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6ec0000

U-Boot SPL 2019.04-00002-g07d5700e21 (Mar 06 2020 - 11:24:55 -0600)
Trying to boot from MMC1
Loading Environment from EXT4… ** File not found /boot/uboot.env **

** Unable to read “/boot/uboot.env” from mmc0:1 **

U-Boot 2019.04-00002-g07d5700e21 (Mar 06 2020 - 11:24:55 -0600), Build: jenkins-github_Bootloader-Builder-137

CPU : AM335X-GP rev 2.1
I2C: ready
DRAM: 512 MiB
No match for driver ‘omap_hsmmc’
No match for driver ‘omap_hsmmc’
Some drivers were not found
Reset Source: Global warm SW reset has occurred.
Reset Source: Power-on reset has occurred.
RTC 32KCLK Source: External.
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Loading Environment from EXT4… ** File not found /boot/uboot.env **

** Unable to read “/boot/uboot.env” from mmc0:1 **
Board: BeagleBone Black
not set. Validating first E-fuse MAC
BeagleBone Black:
Model: SeeedStudio BeagleBone Green Gateway:
BeagleBone: cape eeprom: i2c_probe: 0x54:
BeagleBone: cape eeprom: i2c_probe: 0x55:
BeagleBone: cape eeprom: i2c_probe: 0x56:
BeagleBone: cape eeprom: i2c_probe: 0x57:
Net: eth0: MII MODE
cpsw, usb_ether
Press SPACE to abort autoboot in 0 seconds
board_name=[A335BNLT] …
board_rev=[GG1A] …
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1…
gpio: pin 56 (gpio 56) value is 0
gpio: pin 55 (gpio 55) value is 0
gpio: pin 54 (gpio 54) value is 0
gpio: pin 53 (gpio 53) value is 1
switch to partitions #0, OK
mmc0 is current device
gpio: pin 54 (gpio 54) value is 1
Checking for: /uEnv.txt …
Checking for: /boot.scr …
Checking for: /boot/boot.scr …
Checking for: /boot/uEnv.txt …
gpio: pin 55 (gpio 55) value is 1
2066 bytes read in 53 ms (37.1 KiB/s)
Loaded environment from /boot/uEnv.txt
Checking if uname_r is set in /boot/uEnv.txt…
gpio: pin 56 (gpio 56) value is 1
Running uname_boot …
loading /boot/vmlinuz-4.19.94-ti-r42 …
10095592 bytes read in 678 ms (14.2 MiB/s)
debug: [enable_uboot_overlays=1] …
debug: [enable_uboot_cape_universal=1] …
debug: [uboot_base_dtb_univ=am335x-boneblack-uboot-univ.dtb] …
uboot_overlays: [uboot_base_dtb=am335x-boneblack-uboot-univ.dtb] …
uboot_overlays: Switching too: dtb=am335x-boneblack-uboot-univ.dtb …
loading /boot/dtbs/4.19.94-ti-r42/am335x-boneblack-uboot-univ.dtb …
162266 bytes read in 84 ms (1.8 MiB/s)
uboot_overlays: [fdt_buffer=0x60000] …
uboot_overlays: loading /lib/firmware/M-BB-BBGG-00A0.dtbo …
1931 bytes read in 2440 ms (0 Bytes/s)
uboot_overlays: loading /lib/firmware/BB-ADC-00A0.dtbo …
867 bytes read in 194 ms (3.9 KiB/s)
uboot_overlays: uboot loading of [/lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo] disabled by /boot/uEnv.txt [disable_uboot_overlay_emmc=1]…
uboot_overlays: loading /lib/firmware/BB-BBGG-WL1835-00A0.dtbo …
3504 bytes read in 906 ms (2.9 KiB/s)
loading /boot/initrd.img-4.19.94-ti-r42 …
7046460 bytes read in 490 ms (13.7 MiB/s)
debug: [console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet] …
debug: [bootz 0x82000000 0x88080000:6b853c 88000000] …

Flattened Device Tree blob at 88000000

Booting using the fdt blob at 0x88000000
Loading Ramdisk to 8f947000, end 8ffff53c … OK
Loading Device Tree to 8f8bb000, end 8f946fff … OK

Starting kernel …

[ 0.002178] timer_probe: no matching timers found
[ 0.196590] l4_wkup_cm:clk:0010:0: failed to disable
[ 1.558040] omap_voltage_late_init: Voltage driver support not added
rootfs: clean, 83564/476160 files, 818266/1944576 blocks

login:
login:
login:
login:
login:
login:
login:
login:
login: [ 64.766550] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e90000
[ 64.774188] pgd = f41f3b50
[ 64.776907] [b6e90000] *pgd=9b3ed831, *pte=000f0183, *ppte=000f0a32
[ 65.006325] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6dea000
[ 65.013963] pgd = a9f05a1b
[ 65.016683] [b6dea000] *pgd=9b30c831, *pte=000f0183, *ppte=000f0a32
[ 65.249079] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e3a000
[ 65.256718] pgd = 23560d34
[ 65.259437] [b6e3a000] *pgd=9b2a4831, *pte=000f0183, *ppte=000f0a32
[ 65.428811] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e69000
[ 65.436450] pgd = 4e4da9ed
[ 65.439170] [b6e69000] *pgd=9b3f8831, *pte=000f0183, *ppte=000f0a32
[ 65.667327] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6e3c000
[ 65.674968] pgd = afd4703e
[ 65.677687] [b6e3c000] *pgd=9b3d0831, *pte=000f0183, *ppte=000f0a32
[ 65.880557] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6eb8000
[ 65.888196] pgd = afd4703e
[ 65.890915] [b6eb8000] *pgd=9b27a831, *pte=000f0183, *ppte=000f0a32
[ 66.068247] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6ea0000
[ 66.075885] pgd = ff7fbaef
[ 66.078605] [b6ea0000] *pgd=99a20831, *pte=000f0183, *ppte=000f0a32
[ 66.287215] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6df2000
[ 66.294855] pgd = 6685a767
[ 66.297574] [b6df2000] *pgd=9b27a831, *pte=000f0183, *ppte=000f0a32
[ 66.524847] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6ddc000
[ 66.532487] pgd = c59e1077
[ 66.535207] [b6ddc000] *pgd=9b182831, *pte=000f0183, *ppte=000f0a32
[ 67.108807] Unhandled fault: external abort on non-linefetch (0x018) at 0xb6ebc000
[ 67.116447] pgd = 79a694d2
[ 67.119166] [b6ebc000] *pgd=9b3f6831, *pte=000f0183, *ppte=000f0a32
[ 87.531460] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[ 87.851046] PM: Cannot get wkup_m3_ipc handle

Can you provide the test program or the command you used? If you can also send me the connection mode of the hardware, I will help you analyze the problem faster.

Setting up the system. I will get in contact with you directly.