INTERFACING TMS320C6746 DSP WITH MICRO CONTROLLER

Anoop RAMESH CHANDRAN NAIR

Other Parts Discussed in Thread: TMS320C6746

Hi All

I am doing a new project in which it consist of a DSP(TMS320C6746) and an MCU of 32 bit(STM32F091xB). The project purpose is to make a Bluetooth Conference device.In this the total system controlling is done by using the MCU and the audio section is controlled by DSP. In the DSP datasheet, its specified that the DSP can interface an external device through HPI.

I want to know that whether any serial interface(like SPI or I2C) can do the same thing( Interfacing the host device). Because the HPI is a parallel protocol based and it will consume more no: of communication lines.

Please help

over 9 years ago

0 Sivaraj Kuppuraj over 9 years ago

TI__Mastermind 35645 points

Hi,

We are working on it and will get back to you shortly.

Thanks & regards,
Sivaraj K

0 Senthilkumar Srinivasan over 9 years ago

TI__Mastermind 43660 points

Anoop,

Yes, you can use SPI or I2C to interface TMS320C6746 as a slave device. We do have starterware example code for SPI slave, Please refer below thread.

e2e.ti.com/.../417668

I don't think we have example to configure I2C slave. You may need to develop your own code based on the references available in below thread.

e2e.ti.com/.../443305

Regards,
Senthil

0 Anoop RAMESH CHANDRAN NAIR over 9 years ago in reply to Senthilkumar Srinivasan

Prodigy 20 points

Hello Senthil

Thank you so much for your information and support.
But regarding on the above question there is one more doubt i have. ie if i interface the DSP with the MCU through I2C or SPI can i access the whole system configuration and control registers and shall do the read/write operation. Infact i am new with this HPI protocol.

Thanks & Regards
Anoop

0 Senthilkumar Srinivasan over 9 years ago in reply to Anoop RAMESH CHANDRAN NAIR

TI__Mastermind 43660 points

Anoop,

When you interface DSP and MCU through I2C or SPI, i believe you may not able to access system configuration and entire memory map registers. You may restricted to access the data through SPI and I2C and its control registers only.

Regards,
Senthil

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INTERFACING TMS320C6746 DSP WITH MICRO CONTROLLER