Search found 7 matches

by pseudonym
27 Apr 2020, 08:41
Forum: Nuvoton ARM7/9
Topic: [NUC970/N9H30] NAND boot
Replies: 0
Views: 1141

[NUC970/N9H30] NAND boot

Q: I erased NAND. and i reflashed u-boot-spl, u-boot, env.txt and kernel images. but the board stops at u-boot. and shows as below. NUC970 IBR 20151008.1735 No Key Bootttttt from NAND NAND boot! U-Boot 2016.11 (Apr 24 2020 - 12:08:54 +0530) CPU: NUC972 Board: NUC972 DRAM: 64 MiB NAND: 128 MiB In: s...
by pseudonym
08 Apr 2020, 08:42
Forum: Nuvoton ARM7/9
Topic: [NUC970/N9H30] GPIO control
Replies: 0
Views: 222

[NUC970/N9H30] GPIO control

Q: I am trying to access gpio from userspace using /sys/class/gpio entry. But getting following error # echo 0 > /sys/class/gpio/export Please Check GPIOA00's multi-function = 0x2 sh: write error: Invalid argument # echo 1 > /sys/class/gpio/export Please Check GPIOA01's multi-function = 0x2 sh: wri...
by pseudonym
07 Apr 2020, 08:45
Forum: Nuvoton ARM7/9
Topic: [NUC970] Qt5 support
Replies: 1
Views: 270

[NUC970] Qt5 support

Q: I want to test Qt5. So I enabled qt5 in buildroot and compiled it. When i run qt example widget on development board it gives error as below # ./calculator -qws Could not find DRM device! Aborted. A: We don't recommend using Qt5 on NUC970, the response could be laggy because this is a 300MHz sys...
by pseudonym
01 Apr 2020, 15:35
Forum: Nuvoton ARM7/9
Topic: [NUC970/N9H30] GPIO definition in driver
Replies: 0
Views: 221

[NUC970/N9H30] GPIO definition in driver

Q: We want to get to know the pin details defined in the kernel source, mean which file/folder etc to access the gpio's definitions. based on that we want to experiment with something like on/off led to have control on the pin's. and we want to capture the interrupt on the gpio's how can we configu...
by pseudonym
01 Apr 2020, 15:23
Forum: Nuvoton ARM7/9
Topic: [NUC970/N9H30] Booting
Replies: 0
Views: 274

[NUC970/N9H30] Booting

Q: i flashed default images to development board given i.e. u-boot-spl.bin, u-boot.bin(NAND), 970uimage, env.txt in BSP/Images folder. It enters into bootloader and stops as below. NUC970 IBR 20151008.1735 No Key Bootttttt from NAND nand_boot U-Boot 2013.04-rc2-g0baa639 (Nov 09 2016 - 11:24:33) CPU...
by pseudonym
26 Mar 2020, 16:22
Forum: Nuvoton ARM7/9
Topic: [NUC970/N9H30] YAFFS2 rootfs
Replies: 1
Views: 556

Re: [NUC970/N9H30] YAFFS2 rootfs

Q: As you told i had made yaffs2 root file system with inband-tags as below <snip...> but still i am facing same problem. as below ... yaffs: dev is 32505858 name is "mtdblock2" rw yaffs: passed flags "" VFS: Mounted root (yaffs filesystem) on device 31:2. devtmpfs: error mounting -2 Freeing unused...
by pseudonym
25 Mar 2020, 14:27
Forum: Nuvoton ARM7/9
Topic: [NUC970/N9H30] YAFFS2 rootfs
Replies: 1
Views: 556

[NUC970/N9H30] YAFFS2 rootfs

Q: I am trying to boot board from NAND flash. So i modified u-boot environment variable file i.e. env.txt. I compiled the kernel with "yaffs2" support and disabled "Initial Ram file system" configuration. The kernel crashes with error. Attached env.txt and log file. env.txt: baudrate=115200 bootarg...