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CCS/TMS570LS0914: Cannot enable MIBSPI1 chip select #3 in HALCoGen

user5870912
Prodigy 30 points
Part Number: TMS570LS0914
Other Parts Discussed in Thread: HALCOGEN,

Tool/software: Code Composer Studio

Hi, I'm having difficulty enabling the chip select #3 for the MIBSPI1 module of the TMS570LS0914 (PZ, 100 pins) in HALCoGen. In HALCoGen, I've enabled MIBSPI1 driver, then went to MIBSPI1->MIBSPI1 Port. I can't select SPI mode for the SCS[3] pin mode. The checkbox is grayed out and only the GIO is selected. Then, if I sent to a group using this chip select, the CS doesn't get pulled-down when I probe using a logic analyzer. Any idea how to fix this? Thanks.

  • 0
    Prodigy 30 points
    While HALCoGen wasn't able to select SPI mode for the chip select #3. I was able to modify SCS[3] manually in the generated code in the register mibSPIREG1->PC0. The chip select is now pulled-down when I probe using the logic analyzer. Any idea why HALCoGen doesn't allow this modification?
  • 0 in reply to user5870912
    TI__Guru**** 196306 points
    Thank you for pointing this out. I will check with SW team. CS[3] is available on pin 39 of LS0914 device, and this pin is muxed with NHET1[21]. The Pinmux on HALCoGen doesn't list pin 39.