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使用C6657_EMAC_Example 程序进行loopback,EMAC loopback成功,GE_TEST_DSP0_TO_DSP1 loopback不成功。
查看DSP寄存器,sgmii的状态寄存器的值为0X30,即link up状态一直无效,是什么问题?
我在自己的板子DSP是C6657(phy芯片是88E1112)上测试网络程序时,使用的是CCS自带的例程helloworld,测试时,在打印下面的信息后就不动了。
[C66xx_0] emac_init: core 0, port 0, total number of channels/MAC addresses: 1/1
[C66xx_0] MAC addresses configured for channel 0:
[C66xx_0] 08-00-28-32-96-AC
[C66xx_0] SGMII reset successful........
[C66xx_0] SGMII config successful........
另外使用C6657的GE程序,EMAC_LOOP是正确的,但是查看ADV寄存器的值是全零,寄存器是写过的,不知道为什么?