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#1 Re: Nuvoton N32905/N32926/NUC972/N9H20/N9H26/N9H30 » N32926U1DN SD boot » 2021-02-03 06:07:53

sjshe3326 说:

我使用的是N32905,926应该也是类似的。在固件包中有一个SDLoader的工程。编译这个SDLoader 就是SD启动的文件。
将编译好的SDLoader.bin文件用TurboWriter工具写在SD卡的sector0中。然后就可以用SD卡启动了,会加载用户代码执行。

I have not 固件包中.
I saw only some documentation on nuvoton site, and i dont know where I can download flash packet.

#2 Re: Nuvoton N32905/N32926/NUC972/N9H20/N9H26/N9H30 » N32926U1DN SD boot » 2021-01-29 16:29:49

sjshe3326 说:

你需要在SD卡中写入启动IMG

where i can download bootable image for SD card?

#3 Nuvoton N32905/N32926/NUC972/N9H20/N9H26/N9H30 » N32926U1DN SD boot » 2021-01-25 01:22:24

Serj
回复: 7

Hello. I have device with N32926U1DN cpu, which booting from SPI flash.
I want to boot from sd card. How can I make bootable SD?
Cant found any datasheets with boot description.

Here is starting log, SD booting has first priority:
-------------------------------------------------------------------
Initial RTC .Enable Access Fail - Timeout
DRAM Init..2p
SD Port 0 Booting Fail - No/Unknown Device
NAND CS0 Booting Fail - No Boot Code Header
NAND CS1 Booting Fail - No Boot Code Header
SPI Booting
     Write - 0xB0000204 = 0xFFFFFFFF
     Write - 0xB0000208 = 0xFFFFFFFF
     Write - 0xB0003008 = 0x0000805A
     Write - 0xB0003028 = 0x2AFF3B4A
     Write - 0xB0003004 = 0x00000021
     Delay 256 us
....
-------------------------------------------------------------------

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