ADE9000 - Streaming Waveform Buffer in Fixed Rate Mode

Question

Hi, 
 I am trying to stream back 1024 samples from the ade9000 using the continuous mode. I can read the resampled data just fine, and also the fixed data fine as long as it is in "Stop when Buffer is Full Mode". I am using a raspberry pi 4 connected via spi. When I stream back continuous samples the data appears disjoint. I have tried just using the burst read to read 1024 samples worth (all channels). this is the out put. 
 
 I have also tried setting WFB_PG_IRQEN to 0x8000 in order to indicate that the page 15 has been filled. I then set the CS pin low and poll STATUS0 until bit 17 is set. I reset STATUS0 bit 17 then finish by putting CS High. I start a burst read of the buffer for all of its points. Then loop back to polling the STATUS0 and repeat until I have 4 buffers worth. I get similar looking data. I am not sure what I am doing wrong here but I know this is possible with the tabview code. Could anyone explain how this is meant to be done with sudo code?

dave.smith · Accepted Answer

I setup 
 
 ADE_SPI_WRITE(ADDR_WFB_PG_IRQEN,0x8080,0x2); //set irq for half full and full ADE_SPI_WRITE(ADDR_MASK0,0x20000,0x4); //enable wfb_pg_irq ADE_SPI_WRITE(ADDR_WFB_CFG,0x03F0,0x2); //set dready to 8khz after pf continuous fill fixed samples no neutral 
 
 void IRQ0_irq(){ 
 ADE_SPI_WRITE(ADDR_STATUS0,ADE_SPI_READ(ADDR_STATUS0,0x04),0x4); // clr page irq in stats0 
 //determine if 1st half or second half is to be read. 
 // make sure you can get all data out before next IRQ 
 if (ADE_SPI_READ(ADDR_WFB_TRG_STAT,0x04) && 0xf000000 == 0x70000000) get_1st_half_buffer(); // 0x800 to 0xBFF 
 if (ADE_SPI_READ(ADDR_WFB_TRG_STAT,0x04) && 0xf000000 == 0xf0000000){ get_2nd_half_buffer(); //0xC00 to 0xFFF 
 }

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ADE9000 - Streaming Waveform Buffer in Fixed Rate Mode

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