bcu (Board Control Utilities)

to build and run BCU in Windows:

first we need to have FTDI D2XX library installed:

1. go to https://www.ftdichip.com/Drivers/D2XX.htm
2. click "setup executable" and download the zip file
3. unzip the file and install the library

then we can download and build bcu:

$ git clone https://github.com/NXPmicro/bcu.git

open Board_Control_Utilities.sln with windows visual studio

ctr-shift+B to build the solution

ctr-f5 to run

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to build and run BCU in Linux:

first we need to obtain libftdi1-dev library:
$ sudo apt-get update
$ sudo apt-get install libftdi1-dev

then we can obtain and build bcu:

$ git clone https://github.com/NXPmicro/bcu.git

$ cd bcu

$ cmake .

$ make

$ sudo ./bcu command

linux user: please remember to run bcu with sudo to avoid permission issue

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list of available commands & their functions:

commands	descriptions
reset	reset the board
monitor	switch into a tui windows that monitors voltage, current and power consumption inside the board
lsgpio	show a list of available gpio pin
set_gpio [GPIO_NAME] [1/0]	set a GPIO_NAME pin to be high(1) or low(0). all GPIO_NAMEs are shown in lsgpio command
lsftdi	show the list of connected boards and the their location IDs
lsboard	list all supported board models
set_boot_mode [BOOTMODE]	set the boot mode as BOOTMODE
help	show list of available commands and their functions, as well as options
version	show version number

typical usage of bcu:

$ bcu command [-options]

some example:

1.set sd_wp gpio pin as high:
$ bcu set_gpio sd_wp 1

2.reset the i.MX8QMEVK board after 1 second:
$ bcu reset -board=iMX8QMEVK -delay=1000

3.hold sd_pwr pin low for 3 second:
$ bcu set_gpio sd_pwr 0 -hold=3000

4.set emmc as the booting device:
$ bcu set_boot_mode emmc

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general options for all commands:

options	descriptions
[-board=MODEL]	set the board model, list of avaliable models is shown in lsboards command
[-id=ID]	select the target board with location id(when there are multiple boards), the location id can be viewed by using command lsftdi

options for specfic command:

reset:

options	descriptions
[-delay=DURATION]	reset after DURATION ms
[BOOTMODE]	setting BOOTMODE as the booting method

monitor:

options	descriptions
[-dump]	dump data into a file, which can be imported to excel

set_gpio:

options	descriptions
[-delay=DURATION]	set after DURATION ms
[-hold=DURATION]	hold the output state for DURATION ms
[GPIO_NAME]	specify which gpio pin should be set, list of available gpio can be found using list gpio command
[0]	set the pin output low
[1]	set the pin output high
[-path=PATH]	for testing purpose only: set the gpio pin specified by path

set_boot_mode

options	descriptions
[BOOTMODE]	booting from emmc device

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Board support

i.MX8MP-EVK

initialization usage:

sudo ./bcu init [boot mode] -board=imx8mpevk

reset usage:

sudo ./bcu reset [boot mode] -board=imx8mpevk
RESET function does NOT dependent on initialization. Can be use alone.

boot mode select for imx8mpevk:

SW4[1/2/3/4]	cmd string	bootmode
0000	fuse	Internal Fuses
0001	usb	USB Serial Download
0010	emmc	EMMC/USDHC3
0011	sd	USDHC2
0100	nand_256	NAND 8-bit single device 256 page
0101	nand_512	NAND 8-bit single device 512 page
0110	qspi_3b_read	QSPI 3B Read
0111	qspi_hyperflash	QSPI Hyperflash 3.3V
1000	ecspi	ecSPI Boot
1110	infinite_loop	Infinite Loop Mode