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TMS320F28378S: TMS320F28378S

Maida Farooq
Prodigy 180 points
Part Number: TMS320F28378S
Other Parts Discussed in Thread: TMS320F28375D,

Hi,

I am currently using TMS320F28375D and want to switch to TMS320F28378S. I was looking at the main differences apart from TMS320F28375D's 2 CPUs. Is there any difference in performance especially in terms of RAM and Flash memory (TMS320F28378S does not have a message RAM so I am not sure how that affects). It will be great if I can get this guidance.

Thanks!

  • 0
    Prodigy 180 points

    Also, are their ADC configurations the same?

  • 0 in reply to Maida Farooq
    TI__Guru** 113915 points

    Yes, ADC configuration is same and also there is no major difference. From RAM and flash configuration point of view, please refer the device comparison table in device datasheet and as long as you are using memory footprint which is same on both, there is no issue.

    Regards,

    Vivek Singh

  • 0
    Prodigy 180 points

    Thanks! Also in terms of the PWM channels,  TMS320F28378S has 15 channels. How does that map to the available dual-channel e.g., each dual-channel has epwm A and epwm B. I am not sure how this adds up to an odd total number of channels. Thanks again! 

  • 0 in reply to Maida Farooq
    TI__Guru** 113915 points
    Maida Farooq said:
    Also in terms of the PWM channels,  TMS320F28378S has 15 channels.

    Where so you see 15 channel ? It has 32channel as per "Table 5-1. Device Comparison" in device datasheet.

    Regards,

    Vivek Singh

  • 0 in reply to Vivek Singh
    Prodigy 180 points

    I have this in the TMS320F2837xS Microcontrollers datasheet.

  • 0 in reply to Maida Farooq
    TI__Guru** 113915 points

    Sorry, I was reading it as F2838x device.

    There are two package for F28378S device. 176pin and 100pin. 176pin has 24 channels and 100pin has 15 channels. It just because of less IOs on these package. 

    Hope this is clear.

    Regards,

    Vivek Singh

  • 0
    Prodigy 180 points

    Yes I understand. I just want to know how 15 channels map to A nd B channel of different PWMs.

  • 0 in reply to Maida Farooq
    TI__Guru** 113915 points

    You can find this info from table in section "7.2.1 Signal Descriptions" in device datasheet. It has column for PZP Pin No. so you can see what all EPWM channels are available on this package. FYI, below are the channels available on this as per this table -

    EPWM2A

    EPWM2B

    EPWM3A

    EPWM6A

    EPWM6B

    EPWM7A

    EPWM7B

    EPWM8A

    EPWM8B

    EPWM9A

    EPWM9B

    EPWM10A

    EPWM10B

    EPWM11A

    EPWM11B

    Hope this helps.

    Regards,

    Vivek Singh