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boot mode要按照下面的拨位开关设置成uart2 boot mode。
Pin# | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
Position | OFF | OFF | OFF | OFF | OFF | OFF | ON | ON |
http://processors.wiki.ti.com/index.php/Serial_Boot_and_Flash_Loading_Utility_for_OMAP-L138#Running
我原来用的是OMAPL138BZCEA3,这次采购买回来OMAPL138BZCEA3E,这两者的差别就是最后一个有E,一个没有E,PCB版图是原来的,BOOT0至BOOT7的电平是原来的电平,另外OMAPL138BZCEA3E芯片挂仿真器时,不管BOOT1至BOOT4的电平随意变化,仿真器都可以跑,原来的OMAPL138BZCEA3芯片时,只有BOOT1至BOOT4均为高电平时才能跑仿真器,
带E的表示加密版本,加密的boot方法见下面的wiki网站。
http://processors.wiki.ti.com/index.php/Basic_Secure_Boot_for_OMAP-L138_C6748