问题：
我使用sfh_OMAP-L138.exe串口烧写工具来烧写UBL、UBOOT时，在擦除的过程中总是停止在Waiting for SFT on the OMAP-L138...这，具体信息如下：
C:\temp>sfh_OMAP-L138 -erase -targetType AM1808 -flashType SPI_MEM -v -p Com8
-----------------------------------------------------
TI Serial Flasher Host Program for OMAP-L138
(C) 2012, Texas Instruments, Inc.
Ver. 1.67
-----------------------------------------------------
[TYPE] Global erase
[TARGET] AM1808
[DEVICE] SPI_MEM
[SPI Block] 0
Attempting to connect to device Com7...
Press any key to end this program at any time.
(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: 0x58535901.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Loading section...
(AIS Parse): Loaded 8552-Byte section to address 0x80000000.
(AIS Parse): Processing command 1: 0x58535901.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Loading section...
(AIS Parse): Loaded 116-Byte section to address 0x80002168.
(AIS Parse): Processing command 2: 0x58535901.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Loading section...
(AIS Parse): Loaded 768-Byte section to address 0x800021DC.
(AIS Parse): Processing command 3: 0x58535906.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Performing jump and close...
(AIS Parse): AIS complete. Jump to address 0x80000000.
(AIS Parse): Waiting for DONE...
(AIS Parse): Boot completed successfully.
Waiting for SFT on the OMAP-L138...
说明：
uboot 和linux的默认调试口为 UART2 ，之前我用 UART2作为调试口的时候一切都很顺利，现在因为硬件的影响 想用 UART0 作为调试口，就出现了上述的问题 Waiting for SFT on the OMAP-L138...
希望可以给点思路
TKS
