Other Parts Discussed in Thread: OMAP-L138, AM1705
I tried to upload an U-Boot image to an OMAP-L138 (Logic PD EVM) through UART2. I first started with the example OMAPL138-ARM-LED-uart.bin (from http://processors.wiki.ti.com/index.php/Boot_Images_for_OMAP-L138).
I tried slh_OMAP-L138.exe and UartHost.exe as upload tools. My problem is that the chance that I see blinking LEDs is about 1:20 (but because It is sometimes working I assume that my Boot Pins etc... are correctly set).
If everything works as expected (which is not that often as written above) the output looks like:
Waiting for the OMAP-L138...
(AIS Parse): Read magic word 0x41504954.
(AIS Parse): Waiting for BOOTME... (power on or reset target now)
(AIS Parse): BOOTME received!
(AIS Parse): Performing Start-Word Sync...
(AIS Parse): Performing Ping Opcode Sync...
(AIS Parse): Processing command 0: 0x5853590D.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Executing function...
(AIS Parse): Processing command 1: 0x5853590D.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Executing function...
(AIS Parse): Processing command 2: 0x58535901.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Loading section...
(AIS Parse): Loaded 1464-Byte section to address 0x80000800.
(AIS Parse): Processing command 3: 0x58535901.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Loading section...
(AIS Parse): Loaded 100-Byte section to address 0x80000DB8.
(AIS Parse): Processing command 4: 0x58535906.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Performing jump and close...
(AIS Parse): AIS complete. Jump to address 0x80000D10.
(AIS Parse): Waiting for DONE...
(AIS Parse): Boot completed successfully.
Operation completed successfully.
But normally that output looks like:
Waiting for the OMAP-L138...
(AIS Parse): Read magic word 0x41504954.
(AIS Parse): Waiting for BOOTME... (power on or reset target now)
(AIS Parse): BOOTME received!
(AIS Parse): Performing Start-Word Sync...
(AIS Parse): Performing Ping Opcode Sync...
(AIS Parse): Processing command 0: 0x5853590D.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Executing function...
(AIS Parse): Processing command 1: 0x5853590D.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Executing function...
(AIS Parse): Processing command 2: 0x58535901.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Loading section...
(AIS Parse): Loaded 1464-Byte section to address 0x80000800.
(AIS Parse): Processing command 3: 0x58535901.
(AIS Parse): Performing Opcode Sync...
(Serial Port): Read error! (Timeout für den Vorgang wurde überschritten.)
(AIS Parse): I/O Error in read!
(Serial Port): Read error! (Timeout für den Vorgang wurde überschritten.)
(AIS Parse): I/O Error in read!
...
When I analyze the serial communication I looks the device should send the following acknowledge.
HEX = 01 59 53 52
ASCII = .YSR
But when the download does not work as expected there is no such response from the OMAP-L138.
I've tried different computers, shorter serial cables, and another LogicPD EVM Board. Tried to change the baudrate slightly (~115300). Nothing helps.
The boot rom has the following revision:
U-Boot > md.l 0xfffd0000
fffd0000: ea000006 e1a00000 30303864 3430306b ........d800k004
fffd0010: 20090715 00085420 fffd0000 01010101 ... T..........
fffd0020: e10f0000 e3c0001f e3800013 e38000c0 ................
fffd0030: e129f000 e59f000c e240d008 e3cdd007 ..).......@.....
fffd0040: e59f0004 e1a0f000 ffff0700 fffd3980 .............9..
More or less as expected uploading an U-Boot image never worked.
Any idea?
