Slide 1
Slide 1 text
Linux
Brain Hackers Meetup #
1
@puhitaku
Slide 2
Slide 2 text
Takumi Sueda @puhitaku
2020 9 SHARP Brain
Linux 10
Brain Hackers
Slide 3
Slide 3 text
3
Slide 4
Slide 4 text
SHARP Windows CE
CE exe (PE)
2011
TOSHIBA TMPA
9
10
CRAXBG (armv
4
l) +
64
MiB DRAM
Windows CE
2012 2020
NXP i.MX
2
8
(armv
5
tej) +
12
8
MiB DRAM
Windows CE
2021
NXP i.MX
7
ULP (armv
7
-a, armv
7
e-m) +
128
MiB DRAM
μITRON RTOS
: SHARP Brain
4
https://jp.sharp/edictionary/products/pwsh
1
_overviiew.html
Slide 5
Slide 5 text
puhitaku PW-SH
1
Linux
Brain Hackers + i.MX
28
Debian Brainux
Raspberry Pi
Brain Linux
PW-x
1
(i.MX
7
ULP)
@pepepper
11/20 Kernel/VM online part
4
: Brain Linux
5
https://jp.sharp/edictionary/products/pwsh
1
_overviiew.html
Slide 6
Slide 6 text
6
Slide 7
Slide 7 text
Windows Linux 7
https://jp.sharp/edictionary/products/pwsh
1
_overviiew.html
?
Linux
Slide 8
Slide 8 text
Windows Linux 8
https://jp.sharp/edictionary/products/pwsh
1
_overviiew.html
?
Windows CE
Slide 9
Slide 9 text
1
. Windows
1
. Windows
9
Slide 10
Slide 10 text
1
. Windows
ARM SoC
10
Slide 11
Slide 11 text
1
. Windows
A. Boot ROM
11
Slide 12
Slide 12 text
1
. Windows
A. Boot ROM
(i.MX
28
: On-chip ROM)
12
Slide 13
Slide 13 text
1
. Windows
ARM
DRAM ;
13
eMMC
DRAM
I
2
C
SPI
ARM
9
2 6
EJ-S
Core
Slide 14
Slide 14 text
1
. Windows
On-chip ROM On-chip RAM
On-chip ROM On-chip RAM
14
On-chip ROM
On-chip RAM
(SRAM)
ARM
9
2 6
EJ-S
Core
Slide 15
Slide 15 text
ARM
9
2 6
EJ-S
Core
1
. Windows
On-chip ROM
15
On-chip ROM
On-chip RAM
(SRAM)
🤔
ARM
USB slave (recovery)
I
2
C
SPI
SSP (eMMC / SD)
GPMI (NAND)
JTAG
Slide 16
Slide 16 text
ARM
9
2 6
EJ-S
Core
1
. Windows
Brain One-Time-Programmable ROM eMMC
I
2
C EEPROM eMMC
16
On-chip ROM
On-chip RAM
(SRAM)
😊
ARM
USB slave (recovery)
SSP (eMMC / SD)
SPI
I
2
C
GPMI (NAND)
JTAG
eMMC
Slide 17
Slide 17 text
1
. Windows
eMMC Program Image
DRAM (EBOOT)
17
😊
ARM
SSP (eMMC / SD)
Program Image
MBR
Program Image
Boot ROM
: Windows
DRAM init.
EBOOT
NK image
Slide 18
Slide 18 text
1
. Windows
EBOOT NK image Windows
DRAM
18
😊
ARM
SSP (eMMC / SD)
MBR
Program Image
DRAM init.
EBOOT
NK image
DRAM
EBOOT
On-chip ROM On-chip RAM
DRAM
NK image
EBOOT
Slide 19
Slide 19 text
1
. Windows
Windows CE
19
https://jp.sharp/edictionary/products/pwsh
1
_overviiew.html
Slide 20
Slide 20 text
1
. Windows 20
Boot ROM
Program
Image
EBOOT
Windows
Slide 21
Slide 21 text
2
. Windows
2
. Windows
21
Slide 22
Slide 22 text
2
. Windows 22
https://jp.sharp/edictionary/products/pwsh
1
_overviiew.html
?
Linux
Slide 23
Slide 23 text
2
. Windows
SHARP Windows CE
CE exe (PE)
2011
TOSHIBA TMPA
9
10
CRAXBG (armv
4
l) +
64
MiB DRAM
Windows CE
2012 2020
NXP i.MX
2
8
(armv
5
tej) +
12
8
MiB DRAM
Windows CE
2021
NXP i.MX
7
ULP (armv
7
-a, armv
7
e-m) +
128
MiB DRAM
μITRON RTOS
: SHARP Brain
23
https://jp.sharp/edictionary/products/pwsh
1
_overviiew.html
Slide 24
Slide 24 text
2
. Windows
" " BrainLILO
24
Windows
eMMC
FAT
32
" "
BrainLILO
u-boot.bin
DRAM
Windows
Kernel
Brain
LILO
BrainLILO
???
Slide 25
Slide 25 text
2
. Windows
U-Boot (u-boot.bin) DRAM
25
Windows
eMMC
u-boot.bin
DRAM
Windows
Kernel
Brain
LILO
u-boot.bin
FAT
32
" "
BrainLILO
u-boot.bin
???
Slide 26
Slide 26 text
2
. Windows
MMU (Memory Management Unit) etc.
26
Windows
eMMC
DRAM
u-boot.bin
🔥
🔥
🔥 🔥
FAT
32
" "
BrainLILO
u-boot.bin
???
Slide 27
Slide 27 text
2
. Windows
U-Boot
27
Windows
eMMC
͞Α͏ͳΒʜ
DRAM
u-boot.bin
🔥
🔥
🔥 🔥
FAT
32
" "
BrainLILO
u-boot.bin
???
Slide 28
Slide 28 text
2
. Windows
U-Boot
Linux
28
U-Boot
eMMC
DRAM
u-boot.bin
FAT
32
" "
BrainLILO
u-boot.bin
Linux Image
Linux
Image
Linux
Slide 29
Slide 29 text
2
. Windows
Linux
29
https://jp.sharp/edictionary/products/pwsh
1
_overviiew.html
Slide 30
Slide 30 text
2
. Windows 30
BrainLILO U-Boot
Windows
Slide 31
Slide 31 text
3
. Linux
3
. Linux
31
Slide 32
Slide 32 text
3
. Linux
Linux 1
32
Program
Image
Brain
LILO
U-Boot
EBOOT
U-Boot
Boot
ROM
U-Boot
Program
Image
Slide 33
Slide 33 text
3
. Linux
3
.
1
. EBOOT U-Boot
33
Program
Image
Brain
LILO
U-Boot
EBOOT
U-Boot
Boot
ROM
U-Boot
Program
Image
Slide 34
Slide 34 text
3
. Linux
eMMC NK image
SD NK image
34
PW-SH
1
EBOOT
Slide 35
Slide 35 text
3
. Linux
NK image U-Boot
EBOOT U-Boot
35
SD
FAT
32
EDSA
1
EXE.BIN
u-boot.bin
NK image
Slide 36
Slide 36 text
3
.
2
. Boot ROM Program Image U-Boot
3
.
2
. Boot ROM Program Image U-Boot
36
Program
Image
Brain
LILO
U-Boot
Boot
ROM
U-Boot
Program
Image
U-Boot
EBOOT
Slide 37
Slide 37 text
3
.
2
. Boot ROM Program Image U-Boot
eMMC EBOOT U-Boot Program Image
Linux
37
eMMC
MBR
Program Image
U-Boot SPL
U-Boot
Linux rootfs (ext
4
)
Slide 38
Slide 38 text
3
.
2
. Boot ROM Program Image U-Boot
EBOOT BrainLILO Program Image
38
Program
Image
Brain
LILO
U-Boot
Boot
ROM
U-Boot
Program
Image
U-Boot
EBOOT
❌
⭕
⭕
Slide 39
Slide 39 text
4
. Program Image
4
. Program Image
39
Slide 40
Slide 40 text
4
. Program Image
eMMC Linux
SD I/O
SD
SDIO Wi-Fi
Linux
GPIO
Program Image
40
Slide 41
Slide 41 text
5.
5.
41
Slide 42
Slide 42 text
5.
SHARP Brain Linux
Windows BrainLILO U-Boot
EBOOT (Windows ) U-Boot
Boot ROM U-Boot
Boot ROM
42
Slide 43
Slide 43 text
Brain Hackers