使用的是自己画的PCB， 调试环境IAR for 430 v6.5，Windows xp。
SBW2线模式，接了vcc、gnd、还有TCK和DIO这4个线，能连接到MCU但是下载不了程序，会卡在进入调试界面的读条窗口好一会
之后出现错误
Thu Aug 10, 2017 15:39:20: Using license: Standalone license - IAR Embedded Workbench for Texas Instruments MSP430
Thu Aug 10, 2017 15:39:22: Firmware version 3.9.0.0
Thu Aug 10, 2017 15:39:22: Interface dll version 3.9.1.2
Thu Aug 10, 2017 15:39:25: Device : MSP430I204x_I203x_I202x
Thu Aug 10, 2017 15:39:25: External voltage : 0.1 V
Thu Aug 10, 2017 15:39:25: VCC voltage : 3.4 V
Thu Aug 10, 2017 15:39:45: Could not erase device memory : (Erase) , type=0x2, address=0x1000, length=0x100
Thu Aug 10, 2017 15:40:14: Could not erase device memory : (Erase) , type=0x2, address=0x1000, length=0x100
Thu Aug 10, 2017 15:40:36: Could not erase device memory : (Erase) , type=0x2, address=0x1000, length=0x100
Thu Aug 10, 2017 15:40:55: Could not erase device memory : (Erase) , type=0x2, address=0x1000, length=0x100
Thu Aug 10, 2017 15:41:15: Could not erase device memory : (Erase) , type=0x2, address=0x1000, length=0x100
Thu Aug 10, 2017 15:41:41: Could not erase device memory : (Erase) , type=0x2, address=0x1000, length=0x100
Thu Aug 10, 2017 15:42:05: Could not erase device memory : (Erase) , type=0x2, address=0x1000, length=0x100
Thu Aug 10, 2017 15:42:05: Trying to initialize target failed
Thu Aug 10, 2017 15:42:06: Fatal error: Closing debug session Session aborted!
MCU芯片为全新样片，试了两块板都是这样