ABB ACS-501
ABB ACS-501
ABB ACS-501
如图2所示，整个系统工作流程可以简单描述如下：系统上电后，首先DSP由flash实现自举，并运行引导程序，之后转入EDMA等待状态，FPGA初始化后等待外部图像采集命令，收到图像采集命令后开始进行图像采集，并对采集到的图像进行预处理，预处理后的图像经过FIFO缓冲，在存储一定量的数据之后，FPGA通过半满信号向DSP发送EDMA请求，等待DSP响应，DSP一旦收到来自FPGA的EDMA请求，立即建立EDMA通道，从FIFO中读取数据到L2存储器，存满一帧图像后DSP开始图像压缩，等待一幅图像压缩完成之后，DSP会向FPGA发送中断信号，FPGA在收到中断信号后开始从FIFO中读取压缩后的图像数据。一帧数据读完后，判断编码信号是否有效，如果有效则按同样的规则对下一帧图像进行压缩，如果无效则通知DSP结束。
◆ 企业名称：厦门泰尼电气有限公司
◆ 主营业务：DCS,PLC
◆ 经营模式： 贸易
◆ 贸易地区：
◆ 联系人： 小黄《女士》
◆ 电话：
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◆ QQ:2917675397
◆ 传真： （备注“01006”收）
◆ E-mail： 2917675397@qq.com
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