dp83640 秒脉冲输出问题

dp83640配置秒脉冲输出后，当校时范围比较大时，会出现秒脉冲消失的情况。此时，再次配置秒脉冲不能恢复 …

各位大侠有知道原因的吗？

uint8 DP83640_SetPPS(uint32 PhyAddr, uint8 GPIO_SEL)
{uint16 ptp_trig = 0, val = 0;uint32 sec, nsec, pwidth;ptp_trig =TRIG_WR | (GPIO_SEL & TRIG_CSEL_MASK) << TRIG_CSEL_SHIFT| (GPIO_SEL & TRIG_GPIO_MASK) << TRIG_GPIO_SHIFT| TRIG_PER| TRIG_PULSE;val = (GPIO_SEL & TRIG_SEL_MASK) << TRIG_SEL_SHIFT;/*if (1){//val |= TRIG_DIS;//DP83640_WriteReg(PhyAddr, PAGE5, PTP_TRIG, ptp_trig);DP83640_WriteReg(PhyAddr, PAGE4, PTP_CTL, (val|TRIG_DIS));}*/DP83640_WriteReg(PhyAddr, PAGE5, PTP_TRIG, ptp_trig);sec = 0;nsec = 1000000000UL;pwidth = 1 * 2000000000UL;pwidth += 0;pwidth /= 2;/*load trigger*/val |= TRIG_LOAD;DP83640_WriteReg(PhyAddr, PAGE4, PTP_CTL, val);DP83640_WriteReg(PhyAddr, PAGE4, PTP_TDR, nsec & 0xffff); /* ns[15:0] */DP83640_WriteReg(PhyAddr, PAGE4, PTP_TDR, nsec >> 16); /* ns[31:16] */DP83640_WriteReg(PhyAddr, PAGE4, PTP_TDR, sec & 0xffff); /* sec[15:0] */DP83640_WriteReg(PhyAddr, PAGE4, PTP_TDR, sec >> 16); /* sec[31:16] */DP83640_WriteReg(PhyAddr, PAGE4, PTP_TDR, pwidth & 0xffff);/* ns[15:0] */DP83640_WriteReg(PhyAddr, PAGE4, PTP_TDR, pwidth >> 16); /* ns[31:16] */if(GPIO_SEL < 2){DP83640_WriteReg(PhyAddr, PAGE4, PTP_TDR, pwidth & 0xffff);// ns[15:0]DP83640_WriteReg(PhyAddr, PAGE4, PTP_TDR, pwidth >> 16); // ns[31:16]}/*enable trigger*/val &= ~TRIG_LOAD;val |= TRIG_EN;DP83640_WriteReg(PhyAddr, PAGE4, PTP_CTL, val);return 0;
}

Jason Shen：

这个问题比较专业，建议到我们的E2E上面去问一下，那里有我们产品线的同事做回复。http://e2e.ti.com/support/interface/ethernet/