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你好，我在测试c6657的upp接口时，发送数据，按照用户手册配置完后，FPGA那边抓取信号只能收到upp的空闲寄存器的值，其他的数据和时钟信号都收不到，请问是什么原因？求解答，谢谢！
upp_fill_buffer(xmtBuffer, dataWidth, UPP_DP_RJUST_0FILL, xferSize); // fill transmit buffer with test pattern //upp_fill_buffer(rcvBuffer, 0, UPP_DP_RJUST_0FILL, xferSize); // clear receive buffer
upp_pinmux_enable(); // Though internal loopback, enable uPP in PIN_CONTROL_1
*(int*)UPP_CLOCK = 0x00000000;
*(int*)UPPCR = *(int*)UPPCR | 0x10; LOCAL_delay(200); *(int*)UPPCR = *(int*)UPPCR & 0x00; //发送模式 *(int*)UPCTL = 0x00000001; *(int*)UPICR = 0x05380538; *(int*)UPIVR = 0x0FFF0F66; *(int*)UPTCR = 0x00000000; *(int*)UPDLB = 0x00000000;
*(int *)UPID0 = (unsigned int )xmtBuffer; //*(int *)UPID1 = (unsigned int )(lineCnt<<16 | xferSize / lineCnt); //*(int *)UPID2 = (unsigned int )(xferSize / lineCnt); *(int *)UPID1 = 0x00024000; *(int *)UPID2 = 0x00004000;
这是我的初始化寄存器配置，发数模式，与FPGA联调检测不到upp时钟信号,示波器接管脚也没有时钟，请问什么原因？
