EVAL-AD74111EBZ Analog Devices Inc, EVAL-AD74111EBZ Datasheet - Page 8

• Manufacturer Part Number: EVAL-AD74111EBZ
• Description: BOARD EVAL FOR AD74111
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD74111EBZ

• Main Purpose: Interface, Analog Front End (AFE)
• Utilized Ic / Part: AD74111
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

EVAL-AD74111EB
16-Bit Data Mode, 16-Bit Data, Master Mode Programming Code
/ *
This program creates a loopback effect by copying the ADC result to the DAC.
Once the codec has been programmed, it is put into data mode.
The codec is used in 16-bit mixed-master mode.
* /
.section/data data1;
#define N 18
#define
.var
.var
.var/circ
#include <header.h>
.section/pm program;
ISR_RESET:
ISR_IRQ2:
ISR_IRQ1:
ISR_IRQ0:
ISR_S0_TRANSMIT:
ISR_S0_RECEIVE:
ISR_IRQE:
ISR_BDMA:
ISR_S1_TRANSMIT:
ISR_S1_RECEIVE:
ISR_TIMER:
ISR_POWERDOWN:
PRELOAD THE Tx1 REGISTER
GET FIRST CONTROL WORD
GET VALUE FROM TxDATA
NO
//number of words transmitted before going into data mode
CONTROLEND CONTROLBUFFER + N-1
TXDATA;
RXDATA;
CONTROLBUFFER[N];
jump START; RTI; RTI; RTI;
RTI; RTI; RTI; RTI;
RTI; RTI; RTI; RTI;
RTI; RTI; RTI; RTI;
RTI; RTI; RTI; RTI;
RTI; RTI; RTI; RTI;
RTI; RTI; RTI; RTI;
RTI; RTI; RTI; RTI;
JUMP TXINT; RTI; RTI; RTI;
JUMP RXINT; RTI; RTI; RTI;
RTI; RTI; RTI; RTI;
RTI; RTI; RTI; RTI;
LOAD REGISTER VALUES
AND LOAD Tx1 REGISTER
INTO CONTROL BUFFER
ENABLE INTERRUPTS
BRING RESET HIGH
INITIALIZE DAGS
ENABLE SPORT1
SET UP SPORT1
INTERRUPTS?
RESET LOW
Tx INTERRUPT
Rx INTERRUPT
Figure 7. Mixed Mode Flowchart
Rev. 0 | Page 8 of 16
CONTROL BUFFER
WORD TO TxDATA
NO: MIXED MODE
LOAD NEXT
READ RECEIVE REGISTER
BUFFER?
END OF
YES: DATA MODE
VALUE TO DAC
COPY ADC