TMS320F280034: 烧录FLASH报错

Part Number: TMS320F280034

烧录FLASH报错,仿真器与目标板连接正常,使用TI例程测试下载RAM正常,但改为烧写FLASH失败,提示信息如下:

C28xx_CPU1: Error writing the init algorithm.Unable to read the Flash content correctly. Make sure the device is properly powered as per the datasheet spec (Recommended Operating Conditions). Flash Plugin failed to initialize the FMC. Operation cancelled.
C28xx_CPU1: File Loader: Memory write failed: Unknown error
C28xx_CPU1: GEL: File: D:\SoftInstall\ti\workspace_v12\led_ex1_blinky\CPU1_FLASH\led_ex1_blinky.out: Load failed.