买的DRV8312-C2-KIT实验板，之前通过USB下载程序都没问题，后来报下面这个错误，下载的程序没有问题，是板子本身自带的例程，之前用过，也下载过。
C28xx: GEL: Error while executing OnTargetConnect(): Cannot read register ST1: data is not present
at (ST1&~(0x0100)) [f28035.gel:281]
at C28x_Mode() [f28035.gel:78]
at OnTargetConnect()
C28xx: Error occurred during flash operation: Cannot read 0x00000882@Data: data is not present
C28xx: Flash Programmer: Warning: The configured device (TMS320F28035), does not match the detected device (). Flash Programming operations could be affected. Please consider modifying your target configuration file.
请各位多多指教，本人新手，搞不清楚
