参数资料
| 型号： | EVAL-AD74111EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD74111 |
| 标准包装： | 1 |
| 主要目的： | 接口，模拟前端（AFE） |
| 已用 IC / 零件： | AD74111 |
| 已供物品： | 板 |
| 相关产品： | AD74111YRUZ-ND - IC CODEC AUDIO MONO LP 16TSSOP AD74111YRUZ-REEL7-ND - IC CODEC AUDIO MONO LP 16TSSOP |
EVAL-AD74111EB
RESET LOW
SET UP SPORT1
INITIALIZE DAGS
READ RECEIVE REGISTER
NO: MIXED MODE
END OF
YES: DATA MODE
BUFFER?
LOAD REGISTER VALUES
INTO CONTROL BUFFER
GET FIRST CONTROL WORD
PRELOAD THE Tx1 REGISTER
ENABLE INTERRUPTS
ENABLE SPORT1
BRING RESET HIGH
LOAD NEXT
CONTROL BUFFER
WORD TO TxDATA
COPY ADC
VALUE TO DAC
NO
INTERRUPTS?
Rx INTERRUPT
Tx INTERRUPT
GET VALUE FROM TxDATA
AND LOAD Tx1 REGISTER
Figure 7. Mixed Mode Flowchart
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 //number of words transmitted before going into data mode
#define CONTROLEND CONTROLBUFFER + N-1
.var TXDATA;
.var RXDATA;
.var/circ CONTROLBUFFER[N];
#include <header.h>
.section/pm program;
ISR_RESET: jump
ISR_IRQ2: RTI;
ISR_IRQ1: RTI;
ISR_IRQ0: RTI;
ISR_S0_TRANSMIT: RTI;
ISR_S0_RECEIVE: RTI;
ISR_IRQE: RTI;
ISR_BDMA: RTI;
ISR_S1_TRANSMIT: JUMP
ISR_S1_RECEIVE: JUMP
ISR_TIMER: RTI;
ISR_POWERDOWN: RTI;
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;
TXINT; RTI; RTI; RTI;
RXINT; RTI; RTI; RTI;
RTI; RTI; RTI;
RTI; RTI; RTI;
Rev. 0 | Page 8 of 16
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