Other Parts Discussed in Thread: UNIFLASH
我现在在使用AM2732CD开发，刷写升级时出现了些奇怪现象：
首先芯片上电进入uart刷写模式，串口助手显示芯片发出来的是俩个C，一次接受俩个C，周期在4s左右，
然后我其他没动正常在sdk中编译了helloworld，sbl_uart_uniflash，sbl_qspi，然后进行下载，
log如下：
PS C:\ti\mcu_plus_sdk_am273x_09_01_00_41\tools\boot> python uart_uniflash.py -p COM3 --cfg=.\sbl_prebuilt\am273x-evm\default_sbl_qspi.cfg
Parsing config file ...
Parsing config file ... SUCCESS. Found 3 command(s) !!!
Executing command 1 of 3 ...
Found flash writer ... sending sbl_prebuilt/am273x-evm/sbl_uart_uniflash.release.tiimage
Sending sbl_prebuilt/am273x-evm/sbl_uart_uniflash.release.tiimage: 2%|▉ | 1029/53161 [00:01<01:34, 549.22bytes/s]send error: expected ACK; got b'C' for block 1
Sent flashwriter sbl_prebuilt/am273x-evm/sbl_uart_uniflash.release.tiimage of size 53161 bytes in 6.58s.
Executing command 2 of 3 ...
Command arguments : --file=sbl_prebuilt/am273x-evm/sbl_qspi.release.tiimage --operation=flash --flash-offset=0x0
Sending sbl_prebuilt/am273x-evm/sbl_qspi.release.tiimage: 0%|
Parsing config file ...
Parsing config file ... SUCCESS. Found 3 command(s) !!!
Executing command 1 of 3 ...
Found flash writer ... sending sbl_prebuilt/am273x-evm/sbl_uart_uniflash.release.tiimage
Sending sbl_prebuilt/am273x-evm/sbl_uart_uniflash.release.tiimage: 2%|▉ | 1029/53161 [00:01<01:34, 549.22bytes/s]send error: expected ACK; got b'C' for block 1
Sent flashwriter sbl_prebuilt/am273x-evm/sbl_uart_uniflash.release.tiimage of size 53161 bytes in 6.58s.
Executing command 2 of 3 ...
Command arguments : --file=sbl_prebuilt/am273x-evm/sbl_qspi.release.tiimage --operation=flash --flash-offset=0x0
Sending sbl_prebuilt/am273x-evm/sbl_qspi.release.tiimage: 0%|
然后他刷写sbl_uart_uniflash会失败一次，在成功，再就一直等待在sbl_qspi刷写中。
问一下大概是什么问题。
