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MSP430F22x4 BSL 无法烧录

Other Parts Discussed in Thread: MSP430F2274

MSP430F2274 /2254 之前一直用 SBW烧写。现在准备量产,计划将JTAG熔丝烧断。为保证后期维护,计划用BSL方式批量烧写。但是发现能用SBW烧写MCU,使用BSL无法识别。

连接方式根据SLAU319AC接 USB转串口: SBWTDIO 接 DTR  , SBWTCLK接 RTS, P1.1(MCU TX)接串口Rx,P2.2接串口Tx . 

CH1:SBWTDIO  CH2:SBWTCLK   符合文档SLAU319AC 复位进入BSL时序要求

CH1:P1.1  CH2:P2.2  向MCU送出 波特率9600的同步信号 80H。MCU没有发出任何信号。