nkydv’s gists

nkydv / u-boot - i2c

Created May 26, 2023 04:53 — forked from tranthamp/u-boot - i2c

	# Select the i2c bus
	i2c dev <bus>
	i2c dev 0

	# Probe the device
	i2c probe <chip>
	i2c probe 0x60

	# Read from the device
	i2c read <chip> <chip address> <length> <memory address>

nkydv / am62a7_sdr104_n_ddr50.txt

Created March 21, 2023 10:49

	U-Boot SPL 2021.01-g2ee8efd654 (Feb 23 2023 - 22:21:26 +0000)
	SYSFW ABI: 3.1 (firmware rev 0x0008 '8.6.4--v08.06.04 (Chill Capybar')
	am62a_init: board_init_f done
	am62a_init: spl_boot_device: devstat = 0x243 bootmedia = 0x8 bootindex = 0
	Trying to boot from MMC2
	am62a_init: spl_boot_device: devstat = 0x243 bootmedia = 0x8 bootindex = 0
	Authentication passed
	am62a_init: spl_boot_device: devstat = 0x243 bootmedia = 0x8 bootindex = 0
	Authentication passed
	am62a_init: spl_boot_device: devstat = 0x243 bootmedia = 0x8 bootindex = 0

nkydv / am64x_ddr50.txt

Created March 21, 2023 10:48

	root@am64xx-evm:~# sync
	root@am64xx-evm:~# sync
	root@am64xx-evm:~#
	root@am64xx-evm:~#
	root@am64xx-evm:~#
	root@am64xx-evm:~#
	root@am64xx-evm:~# reboot
	Stopping Session c1 of user root.
	[ OK ] Removed slice system-dropbear.slice.
	[ OK ] Stopped target RPC Port Mapper.

nkydv / am64x_sdr104.txt

Created March 21, 2023 10:48

	U-Boot SPL 2021.01-g8de4494661 (Jun 24 2022 - 12:38:07 +0000)
	EEPROM not available at 80, trying to read at 81
	SYSFW ABI: 3.1 (firmware rev 0x0008 '8.4.1--v08.04.01 (Jolly Jellyfi')
	SPL initial stack usage: 13400 bytes
	Trying to boot from MMC2
	Starting ATF on ARM64 core...

	NOTICE: BL31: v2.6(release):v2.7-rc0-dirty
	NOTICE: BL31: Built : 11:26:33, Jun 24 2022
	I/TC:

nkydv / am62x_sdr104.txt

Last active March 21, 2023 10:50

	root@am62xx-evm:~# reoot
	-sh: reoot: command not found
	root@am62xx-evm:~# reboot
	Stopping Session c1 of user root.
	[ OK ] Stopped target Multi-User System.
	[ OK ] Stopped target Login Prompts.
	[ OK ] Stopped target RPC Port Mapper.
	[ OK ] Stopped target Timers.
	[ OK ] Stopped Daily rotation of log files.
	[ OK ] Stopped Daily Cleanup of Temporary Directories.

nkydv / am62x_ddr50.txt

Created March 21, 2023 10:46

	U-Boot SPL 2021.01-g072a9b409c (Feb 03 2023 - 15:56:00 +0000)
	SYSFW ABI: 3.1 (firmware rev 0x0008 '8.6.1--v08.06.01 (Chill Capybar')
	SPL initial stack usage: 13424 bytes
	Trying to boot from MMC2
	Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
	Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
	Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
	Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
	Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
	Loading Environment from MMC... *** Warning - No MMC card found, using def

nkydv / HALJIA USB Relay Module.py

Created October 11, 2022 09:16 — forked from RJ/HALJIA USB Relay Module.py

Python to control cheap USB relay from amazon: QinHeng Electronics HL-340 USB-Serial adapter

	# To run with pyusb debugging:
	#
	# PYUSB_DEBUG=debug python relay.py
	#
	# Grab the vendor and product codes from syslog when plugging in the relay:
	#
	# usb 3-1: New USB device found, idVendor=1a86, idProduct=7523
	#
	import time
	import usb.core