AD9102 Trigger and UPDATE bit (0x1D)

Question

Hello everybody, 
 tried to send the registers which are in the example6.regval to FPGA, after that, I sent 0x01 to register 0x1D and then set Trigger high and low. But I have no Sine wave from DAC. 
 1- Should I repeat UPDATE bit (0x1D) for the trigger as well? 
 2- Is any specific time for trigger needed? 
 3- Is any specific time for UPDATE bit (0x1D) needed? 
 4- For Sine wave from DDS, should I write some data into the RAM? 
 5- How can I read the sent data (from FPGA) through AD9102 software? 
 
 Regards, 
 Akbar

ADIApproved · Accepted Answer

Great! Congratulations! 
 Will)

akbar · Answer

Dear Will, 
 Setting the RUN bit in the PAT_STATUS register (Register 0x1E) to 1 was missing. Now SPI between AD9102 and FPGA works correctly. 
 Regards, 
 Akbar

Electronic Design Services - PartnerZone

Products Mentioned

AD9102 Trigger and UPDATE bit (0x1D)