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DLPC3479: 3479的boot读取flash里面的固件失败

Part Number: DLPC3479

你好,我当前采用的是一个4M的flash(后面有料了再换成大的),找FAE沟通拿了如下图的3M的IMG固件,按理说不放pattern空间应该是够的能跑起来的,我将IMG格式固件改成bin格式,用VS4000PLUS Device Programmer烧录器烧到flash中,两片flash均显示烧录成功。但是上电后示波器显示3479有给flash发读取信号,但是falsh没应答。我现在在手头暂时没有更大的flash前提下,且下图中的各个节点电压正常,IRQ上电后就没有拉高过,一直为低(两片都是),怎样确定是FAE给我的固件有问题,还是我的flash容量太小、或者是硬件设计有问题?