MMCM_GPSDO
所属分类:GPS编程
开发工具:VHDL
文件大小:6KB
下载次数:0
上传日期:2022-09-01 21:19:29
上 传 者:
sh-1993
说明: 使用MMCM相移的全数字GPS自律振荡器。
(An all-digital GPS disciplined oscillator using MMCM phase shift.)
文件列表:
basys3.xdc (3877, 2022-09-02)
gps_xo.vhd (12380, 2022-09-02)
tb_gps_xo.vhd (1601, 2022-09-02)
top.vhd (1356, 2022-09-02)
# MMCM_GPSDO
An all-digital GPS disciplined oscillator using MMCM phase shift.
Using a BASYS3 development board, if a GPS module's PPS input is
connected to JB0 clk signal will be soon be locked to the GPS
system's time reference. LEDs 14:0 show the current error in HZ,
and LED15 show if it is locked.
Well, by locked I mean it will have a frequency that is kept within
one part per million of GPS time.
The control loop is woefully engineered, and the size of all the
registers has been (not) optimized for coding simplicity, and all
the constants are empirically derived, but it works as advertised.
Plenty of room for experiment and improvement.
近期下载者:
相关文件:
收藏者: