检查一下寄存器地址搞对了没有,不可能没值,不然中断怎么产生的。
http://processors.wiki.ti.com/index.php/Main_Page
Think Over Before Asking.
http://www.catb.org/~esr/faqs/smart-questions.ht ...
http://processors.wiki.ti.com/index.php/SYS/BIOS_dmtimer_configuration_for_TI81xx
Setting the dmtimer input frequency
The following configuration code snippet is from a SYS/BIOS configuration sc ...
MDMA只是一个总线端口,没有配置这一说。
你为什么要关心这些呢?你具体的应用是啥? http://processors.wiki.ti.com/index.php/Main_Page
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输时钟频率要在BIOS里设的,软件(BIOS)不能自动识别输入时钟频。
http://processors.wiki.ti.com/index.php/Main_Page
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http://www.catb.org/~esr/faqs/smart-questions.html#g ...
配置跟软件是sy***ios还是starterware没有关系。
你要看 bootmode设的对不对, logicpd的板子spi boot mode要把开关全打到off.
http://processors.wiki.ti.com/index.php/Main_Page
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从FPGA引根线接到L138的GPIO,当FPGA收满一帧数据,给L138发一个GPIO脉冲触发EDMA传输。
http://processors.wiki.ti.com/index.php/Main_Page
Think Over Before Asking.
http://www.catb.org/~esr/faqs/ ...