Part Number: TMS570LC4357
Other Parts Discussed in Thread: HALCOGEN
Hi, I am trying to get MibSPI as master -slave model. I have two TMS570C43x launch pads. I configured one as master and another one as slave. I used HALCOGEN for this.
I noticed master works just fine. I checked by shorting SIMO and SOMI pins. I am using MIBSPI3SIMO[0], MIBSPI3SOMI[0], MIBSPI3CLK[0], MIBSPI3CS[2] for master and same for slave without parallel mode.
Master configuration is as below.
Master Data Format is as below:
Master Transfer Group. buffer mode is 4 not 7.
Master MIBSPI3 Port: I configured ENA and other CS0,CS1,CS3..as GIO and SOMI, SIMO, CLK and CS[2] as below.
As I said master works fine. Now the issue I have is with slave. I noticed slave requires master to de-assert CS line after every buffer transmission.
Below is my slave setup.
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Slave Setup
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I played with CSHOLD and CSHOLD FS but did't get right behavior.
Please let me know what wrong am I doing ?
Below is the sequence I am trying to get working.
1) Master : CS low
Send buffer of 8 short integers
after master is done with sending data,
From slave: Read the data and send same data back to the master.
After this master will de-assert CS(Pull High)
I am using mibSPI for half duplex communication.
