Other Parts Discussed in Thread: CC1310, , DAC7811
Tool/software: Code Composer Studio
Hi,
I would like to use CC1310 Launchpad by the SPI interface,
giving the command and digital data to DAC7811EVM.
And getting the output analog result from the DAC7811EVM.
This is the scope capture, and the connection is following by:
Ch1: MOSI (DAC7811: J2_T pin11, CC1310: DIO9)
Ch2: SCLK (DAC7811: J2_T pin3, CC1310: DIO10)
Ch3: SYNC (DAC7811: J2_T pin7, CC1310: DIO15)
Ch4: Vout (DAC7811: TP2)(DAC7811: AGND)
I modified from CC1310 example code "spimaster_CC1310_LAUNCHXL_tirtos_css".
So I put the "Board_SPI_MASTER_READY"(DIO15) to be my "SYNC" pin. (I'm not sure is it feasibility or not..)
I just doing for testing, so I used the "dupont Line" cross over the CC1310 to DAC7811EVM.
The wire i connected is following:
3.3V, Gnd ---to---> J3 pin10, pin5 (from CC1310)
+5V, -5V, Gnd ---to---> J3 pin3, pin4, pin6
+10V, 0V ---to---> J3 pin1 and pin2,
(The jumper or switch on DAC7811EVM were all in default)
In the SPI master(CC1310), I wrote in Txbuffer :
Txbuffer[0]=0x1800
Txbuffer[1]=0x1C00
And the SPI bit rate i used with 4Mbps.
By all of these setting, I always got nothing to my output from DAC7811 TP2.
Please help me in rectifying the issue.
Truly needed for someone's help.
Best Regard