参数资料
| 型号： | EVAL-AD74111EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/16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
START:
WAIT1:
//program starts here
reset fl1; //reset low until everything is set up
//set up the serial port (SPORT1)
//rfs, tfs & sclk are inputs
//frame syncs required
ax0=0x280f;
dm(SPORT1_CTRL_REG)=ax0;
imask=0; ifc=0xff;
//initialise DAGs
i0=CONTROLBUFFER; m0=1; l0=N;
i1=CTRL; m1=1; l1=2;
i2=STATUS; m2=1; l2=2;
//fill control buffer with control register values
ax0=0x807c; dm(i0,m0)=ax0; //cra
ax0=0x8a00; dm(i0,m0)=ax0; //crb
ax0=0x9000; dm(i0,m0)=ax0; //crc
ax0=0x9809; dm(i0,m0)=ax0; //crd NOTE Mixed Master Mode
ax0=0xa000; dm(i0,m0)=ax0; //cre
ax0=0xa800; dm(i0,m0)=ax0; //crg
ax0=0x3000; dm(i0,m0)=ax0; //crg read
ax0=2; dm(CONTROLCOUNTER)=ax0;
//reinitialise DAG
i0=CONTROLBUFFER;
//preload the TX register
ax0=0x807c;
tx1=ax0;
//bring reset high and wait for interrupts
call MASTERRESET;
//set fl1;
//enable the SPORT
ax0=0x1c00; dm(SYS_CTRL_REG)=ax0;
//enable RX and TX interrupts
imask= 0x06; ifc=0xff;
jump WAIT1;
TXINT:
ax0=dm(i1,m1);
tx1=ax0;
rti;
//get next value to transmit
//transmit it
//done
RXINT:
//read the RX register straight away
ay1=rx1;
ax0=dm(CONTROLCOUNTER);
ar=ax0-1;
if eq jump ZERO;
ONE:
ZERO:
//status word received
dm(CONTROLCOUNTER)=ar; //store counter value
//do whatever with status word
rti;
//ADC Word Received - End Of Frame
//loopback operation
dm(ADC)=ay1;
dm(DAC)=ay1;
//get next control word
ax0=dm(i0,m0); dm(CTRL)=ax0;
//reset the counter
ax0=2; dm(CONTROLCOUNTER)=ax0;
rti;
Rev. 0 | Page 6 of 16
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