C54xx: Trouble Reading Memory Block at 0x6 on Page 1 of Length 0x8: Error 0x80000002/-1052 Fatal Error during: Memory, Device driver: Emulator Controller not responding The targets should be power cycled or hard reset followed by an emureset and reconnect to each
target. Then it is recommended to RESET EMULATOR. This will disconnect each target from the emulator.
仿真器XDS100-V2,在学习板上确认过,没有问题CCS4.2
用示波器检查,3.3V和1.8V电源平稳,晶振20M正常;CLKOUT为10M,有轻微过冲(0.4~0.5V),不过跟学习板的波形差不多;复位引脚接MAX809,3.3V。
有一个奇怪的现象,上电后,悬空的INT0~INT3以及NMI为低电平,接上10k电阻上拉后为高,但依然是提示此问题。
请问这个问题可能是什么原因造成的?特别是为什么中断引脚上电后为低电平?学习板上悬空的中断引脚是高的