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Norman Zhi edited this page May 9, 2026 · 2 revisions

Overview

Hardware Part number Features
CPU Ingenic JZ4755 PM DS 384MHz JzRISC mips32 R1 (mipsel)
SDRAM Unknown 64MiB
NAND Unknown 4GiB emulated as MMC on MSC0 interface through controller chip
LCD Unknown 800x480 16-bit RGB565 mode

Interfaces

Interface Availability Comment
UART UART1 115200bps, 8n1
JTAG ?
Boot select ?

Dedicated buttons GPIO

GPIO Button Special
PE30 Home Load noahos.img from MSC1
PE4 VOL+ Load NOAHOS UPDATE UTILITIES
PE5 VOL- Load NOAHOS TEST UTILITIES

GPIO usage

GPIO configurations collected while running in QEMU.

GPIO port A

2026-05-08T21:43:49.390659Z ingenic_gpio_config PA im=0xffffffff fun=0xffffffff sel=0x00000000 dir=0x00000000
2026-05-08T21:43:49.390661Z ingenic_gpio_status PA in=0xffffffff out=0x00000000 flg=0x00000000

GPIO port B

2026-05-08T21:43:49.686898Z ingenic_gpio_config PB im=0xffffffff fun=0xffffffff sel=0xfc000000 dir=0x00000000
2026-05-08T21:43:49.686899Z ingenic_gpio_status PB in=0xffffffff out=0x00000000 flg=0x00000000

GPIO port C

2026-05-08T21:43:49.432033Z ingenic_gpio_config PC im=0xffffffff fun=0x38230000 sel=0x30020000 dir=0x00000000
2026-05-08T21:43:49.432035Z ingenic_gpio_status PC in=0x7fffffff out=0x00000000 flg=0x00000000
Pin Mode Function
31 GPIO BOOT_SEL1: 0: MSC0, 1: NAND

GPIO port D

2026-05-08T21:43:49.394093Z ingenic_gpio_config PD im=0xffffffff fun=0x0fffffff sel=0x00000000 dir=0x00000000
2026-05-08T21:43:49.394095Z ingenic_gpio_status PD in=0xffffffff out=0x00000000 flg=0x00000000

GPIO port E

2026-05-08T21:44:02.292288Z ingenic_gpio_config PE im=0xffffffff fun=0x02800000 sel=0x42800040 dir=0x000c2a40
2026-05-08T21:44:02.292290Z ingenic_gpio_status PE in=0xffffefff out=0x400c0040 flg=0x00000000
Pin Mode Function
30 INT WKUP: Home button, 0: pressed
12 GPIO 0: MSC1 SD card inserted
10 GPIO 0: Headphone connected
8 GPIO 1: USB connected
6 GPIO 1: charger connected
5 GPIO VOL- button, 0: pressed
4 GPIO VOL+ button, 0: pressed
2 GPIO 1: charging done

GPIO port F

2026-05-08T21:43:49.431512Z ingenic_gpio_config PF im=0xffffffff fun=0x00000800 sel=0x00000800 dir=0x00001c00
2026-05-08T21:43:49.431513Z ingenic_gpio_status PF in=0xffffffff out=0x00000400 flg=0x00000000

OpenNoah

Software

Devices variants

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