LMX2572: 请教自动斜坡参数的设置

鉴相频率Fpd=100Mhz

起始频率902.5MHz, 要求在890-915MHz之间往返扫频，步进50KHz,

测试了几天，输出依然不对，能否帮我检查一下，或者能给予一个寄存器数值表？

按照我的理解，

Fstep = 0.05*4=0.2; 
Fmax = 915*4=3660;
Fmin = 890*4=3560;
Fstart = 3610;

RAMP_LIMIT_HIGH = pow(2,24)*(Fmax-Fstart)/100 = 8388608 = 0x00800000
RAMP_LIMIT_LOW = pow(2,33) - pow(2,24)*(Fstart-Fmin)/100 = 8581545984 = 0x1ff800000
RAMP0_INC = (fstep/100*pow(2,24)) = 33554 = 0x00008312
RAMP1_INC = pow(2,30) - RAMP0_INC = 1073708270 = 0x3FFF7CEE

其它相关的设置:

OUT_FORCE = 1;
LD_DLY = 0;
RAMP_MANUAL = 0;
RAMP_TRIGA = 4;
RAMP_TRIGB = 4;
RAMP0_NEXT_TRIG = 0;
RAMP1_NEXT_TRIG = 0;
RAMP0_RST = 1;
RAMP1_RST = 1;
RAMP0_NEXT = 1;
RAMP1_NEXT = 0;
RAMP0_DLY = 0;
RAMP1_DLY = 0;
RAMP_TRIG_CAL = 1;
PLL_DEN = 0xFFFFFFFF;