Other Parts Discussed in Thread: LV24EVK01, DS92LV2422
Hi team,
LV24EVK01: http://www.ti.com/cn/lit/ug/snlu006/snlu006.pdf
Objective: use DS92LV2421/22 to transmit signals
Input signal type:
1. Clock signal 1-frequency 12.5MHZ, data 1 (the clock signal transmits data along two sides (rising edge / falling edge))
2. Clock signal 2-frequency 7MHz, data 2 (the clock signal is falling edge sampling)
3. control signal
Test process:
1. TX board switch settings: RFB=0;PDB=1;CFG0=0;CFG1=0;VODSEL=1;RESO=0
2. RX board switch setting: BISTEN=0;RES0=0;PDB=1
3. External signal source generator is set to 72MHZ, which is connected to PCLK of TX board; PCLK output of RX board is not connected.
4. The signal to be transmitted is connected to R7,G0-G7, B0-B6 of TX board; the RGB interface is not fully occupied.
5. The output signal is connected to the lamp panel through the corresponding connector of RX
6. The above operation can complete signal transmission.
Problem:
The clock signal to be transmitted is 12.5MHZ, corresponding to multiple data groups. The clock needs to be sampled along both sides . Another clock is 7MHZ, corresponding to multiple data groups, and the clock needs to sample along one side.
Whether the 12.5MHZ clock can be used as a sampling clock to connect PCLK, collect all data and another clock after ds92l2421 frequency doubling, and then obtain the original signal after ds92lv2422 frequency division.
Best Regards,
Amy Luo
