TMS320F28378S: TMS320F28378S

Maida Farooq

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!

over 4 years ago

0 Maida Farooq over 4 years ago

Prodigy 180 points

Also, are their ADC configurations the same?

0 Vivek Singh over 4 years ago in reply to Maida Farooq

TI__Guru** 116081 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 Maida Farooq over 4 years ago

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 Vivek Singh over 4 years ago in reply to Maida Farooq

TI__Guru** 116081 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 Maida Farooq over 4 years ago in reply to Vivek Singh

Prodigy 180 points

I have this in the TMS320F2837xS Microcontrollers datasheet.

0 Vivek Singh over 4 years ago in reply to Maida Farooq

TI__Guru** 116081 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 Maida Farooq over 4 years ago

Prodigy 180 points

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

0 Vivek Singh over 4 years ago in reply to Maida Farooq

TI__Guru** 116081 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

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TMS320F28378S: TMS320F28378S