I've followed the procedure written in "LMK04826/28 User's Guide 3.2.1 Continuous SYSREF" to output 24.576MHz continous SYSREF from SCLKout1, but could not set "SYSREF Clock Divider" value to 120 as shown in Figure 6.
How can I program SYSREF Clock Divider value ?
Procedures are:
1. Select default mode from the "Mode" Menu. "CLKin1 122.88 MHz, OSCin 122.88 MHz"
2. press CTRL-L (load device)
3. follow the procedure 3.2.1. Use SCLKout1 as SYSREF output (=> calculated SYSREF freq. on GUI is 0.96MHz which is same as measured SDCLKout1 freq.)
4. Modify "SYSREF Clock Divider" field on "CLKouts" tab and "SYSREF" tab. (=> nothing happens)
5. press CTRL-L (=> nothing happens)
6. Change something on GUI, such as SDCLKout1_MUX from 1 to 0 (=> SYSREF Clock Divider field returns to default value 3072)
Hardware, Software Configuration:
LMK0482xEVAL (with LMK04828B) 2013-02-18
Windows XP SP3
Code Loader Program Version : 4.9.0, Part File Version : 2013-06-27, v1.9.0
