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求助,关于TMS320C6455的SRIO_NREAD读数据问题

Other Parts Discussed in Thread: TMS320C6455

求助,关于TMS320C6455的SRIO_NREAD速率很慢,读多包数据中间有很长的间隔,为什么?

SRIO连接是DSP到FPGA,DSP做主,FPGA做从,按照手册配置完LSU_REG0~5,读写操作都成功,DSP写速率很快,可是DSP读速率很慢,包与包之间有很长间隔,

LSU_REG3中Byte_count配置为512字节,也就是两包,每包256字节,如图所示,从第1包NREAD命令到第2包NREAD命令有很长间隔,

第一包起始地址为D5001000,第2包起始地址位D5001100,按256字节累加;