I want to boot my OMAPL138 board from NOR FLASH,but OMAPL138 boot pins can not be latched.

liwa lin

Other Parts Discussed in Thread: OMAPL138, OMAP-L138

hello,

I want to boot OMAPL138 from NORFlash,

I did the steps as the document "OMAP-L138 Bootloader" said.And the TRST is externally pulled down on my board,but the boot pins still can not be latched.The register BOOTMODE read 0x0000000.

Are there any other reasons?

If this problem can not be resoved,are there any other method to boot from NOR FLASH?

Thanks

LLW

over 13 years ago

0 Daniel Allred over 13 years ago

TI__Genius 17355 points

Can you please provide the complete output shown when running the Debug GEL file?

Regards, Daniel

0 liwa lin over 13 years ago in reply to Daniel Allred

Prodigy 85 points

C674X_0: GEL Output: ---------------------------------------------
C674X_0: GEL Output: |             Device Information            |
C674X_0: GEL Output: ---------------------------------------------
C674X_0: GEL Output: DEV_INFO_00 = 0x0B7D102F
C674X_0: GEL Output: DEV_INFO_01 = 0x00000000
C674X_0: GEL Output: DEV_INFO_02 = 0x00000000
C674X_0: GEL Output: DEV_INFO_03 = 0x00000031
C674X_0: GEL Output: DEV_INFO_04 = 0x00000000
C674X_0: GEL Output: DEV_INFO_05 = 0x000003E0
C674X_0: GEL Output: DEV_INFO_06 = 0x00000000
C674X_0: GEL Output: DEV_INFO_07-DEV_INFO_08-DEV_INFO_09-DEV_INFO_10-DEV_INFO_11-DEV_INFO_12 = 0-0-4823083-7-52-33
C674X_0: GEL Output: DEV_INFO_13,DEV_INFO_14,DEV_INFO_15,DEV_INFO_16 = 1,0,0,11606
C674X_0: GEL Output: -----
C674X_0: GEL Output: DEV_INFO_17 = 0x00030003
C674X_0: GEL Output: DEV_INFO_18 = 0x00000000
C674X_0: GEL Output: DEV_INFO_19 =
C674X_0: GEL Output: 0
C674X_0: GEL Output: 0
C674X_0: GEL Output: 0
C674X_0: GEL Output: 0
C674X_0: GEL Output: 0
C674X_0: GEL Output:
C674X_0: GEL Output: -----
C674X_0: GEL Output: DEV_INFO_20 = 0x30303864
C674X_0: GEL Output: DEV_INFO_21 = 0x3430306B
C674X_0: GEL Output: DEV_INFO_22 = 0x00000000
C674X_0: GEL Output: DEV_INFO_23 = 0x00000000
C674X_0: GEL Output: -----
C674X_0: GEL Output: DEV_INFO_24 = 0x07021034
C674X_0: GEL Output: DEV_INFO_25 = 0x0049982B
C674X_0: GEL Output: DEV_INFO_06 = 0x00000000
C674X_0: GEL Output: DEV_INFO_26 = 0x5AAC0001
C674X_0: GEL Output:
C674X_0: GEL Output: ---------------------------------------------
C674X_0: GEL Output: |               BOOTROM Info                |
C674X_0: GEL Output: ---------------------------------------------
C674X_0: GEL Output: ROM ID: d800k004
C674X_0: GEL Output: Silicon Revision 1.1
C674X_0: GEL Output: Boot pins: 0
C674X_0: GEL Output: Boot Mode: I2C0 EEPROM
C674X_0: GEL Output: ROM Status Code: 0x00000001 Description:
C674X_0: GEL Output: DSP was put to sleep
C674X_0: GEL Output: Program Counter (PC) = 0x00700000

0 liwa lin over 13 years ago in reply to liwa lin

Prodigy 85 points

ARM9_0: GEL Output: ---------------------------------------------
ARM9_0: GEL Output: |             Device Information            |
ARM9_0: GEL Output: ---------------------------------------------
ARM9_0: GEL Output: DEV_INFO_00 = 0x0B7D102F
ARM9_0: GEL Output: DEV_INFO_01 = 0x00000000
ARM9_0: GEL Output: DEV_INFO_02 = 0x00000000
ARM9_0: GEL Output: DEV_INFO_03 = 0x00000031
ARM9_0: GEL Output: DEV_INFO_04 = 0x00000000
ARM9_0: GEL Output: DEV_INFO_05 = 0x000003E0
ARM9_0: GEL Output: DEV_INFO_06 = 0x00000000
ARM9_0: GEL Output: DEV_INFO_07-DEV_INFO_08-DEV_INFO_09-DEV_INFO_10-DEV_INFO_11-DEV_INFO_12 = 0-0-4823083-7-52-33
ARM9_0: GEL Output: DEV_INFO_13,DEV_INFO_14,DEV_INFO_15,DEV_INFO_16 = 1,0,0,11606
ARM9_0: GEL Output: -----
ARM9_0: GEL Output: DEV_INFO_17 = 0x00030003
ARM9_0: GEL Output: DEV_INFO_18 = 0x00000000
ARM9_0: GEL Output: DEV_INFO_19 =
ARM9_0: GEL Output: 0
ARM9_0: GEL Output: 0
ARM9_0: GEL Output: 0
ARM9_0: GEL Output: 0
ARM9_0: GEL Output: 0
ARM9_0: GEL Output:
ARM9_0: GEL Output: -----
ARM9_0: GEL Output: DEV_INFO_20 = 0x00000000
ARM9_0: GEL Output: DEV_INFO_21 = 0x00000000
ARM9_0: GEL Output: DEV_INFO_22 = 0x30303864
ARM9_0: GEL Output: DEV_INFO_23 = 0x3430306B
ARM9_0: GEL Output: -----
ARM9_0: GEL Output: DEV_INFO_24 = 0x07021034
ARM9_0: GEL Output: DEV_INFO_25 = 0x0049982B
ARM9_0: GEL Output: DEV_INFO_06 = 0x00000000
ARM9_0: GEL Output: DEV_INFO_26 = 0x5AAC0001
ARM9_0: GEL Output:
ARM9_0: GEL Output: ---------------------------------------------
ARM9_0: GEL Output: |               BOOTROM Info                |
ARM9_0: GEL Output: ---------------------------------------------
ARM9_0: GEL Output: ROM ID: d800k004
ARM9_0: GEL Output: Silicon Revision 1.1
ARM9_0: GEL Output: Boot pins: 0
ARM9_0: GEL Output: Boot Mode: I2C0 EEPROM
ARM9_0: GEL Output: ROM Status Code: 0x00000000 Description:
ARM9_0: GEL Output: No error
ARM9_0: GEL Output: Program Counter (PC) = 0xFFFD4EA8

0 liwa lin over 13 years ago in reply to liwa lin

Prodigy 85 points

hello,

the boot pins are configured correctly.If the problem can not be resolved,

Can I use the method of legacy nor flash or direct nor flash to boot ?

Can you let me know how the ROM Bootloader works?

0 jc-ti over 13 years ago in reply to liwa lin

TI__Mastermind 27585 points

The boot pins are latched before the ROM bootloader starts executing. It is a hardware function that reads the boot pins into a register after a POR.

Please show a scope shot of the one of the boot pins that you have pulled up in relation to reset. Is it complying with the setup and hold times required by the datasheet?

Jeff