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Part Number: TMS320C5517
I am looking at this DSP for a new design. I checked the EVM manual by Spectrum Digital.
On the C5517 EVM, the UHPI bus is used in order to download software from the MSP430 to the C5517.
On the literature of that EVM they write:
HPI_ON = ON => HPI mode disabled
HPI control and data lines not connected
SDRAM CS enabled
SPI(Flash)/I2S2/SPI(LCD) MUX (U23 & U29) enabled
UART (U21) and Expansion SPI (U10) lines enabled
HPI_ON = OFF => HPI mode enabled
HPI control and data lines ar enabled
SDRAM OE is disabled
SPI Flash/I2S2/SPI LCD MUX disabled
UART plus additional lines (U21 and U10) disabledhttp://support.spectrumdigital.com/boards/evm5517/revf/files/evm5517_SystemSummary.htmlI wonder why do they disable the UART and the SPI and the SDRAM when the HPI is off?On my project, I need 2 SPI's + 1 UART + HPI interface (connected to external FPGA) which works simultaneously.The HPI would download parallel data from Xilinx FPGA using DMA, One SPI will control a display and another SPI will control the FPGA + UART sending and receiving commands from an external device.Is it possible to implement that architecture using this DSP?If I will disable the MSP430 part of the EVM, would I be able to use all of those inmterfaces simultaneously?
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Fundamentally, the C5517 chip has several interfaces muxed among themselves. For example, signal P12 is muxed between UHPI and SPI.
So, I would suggest taking a closer look at the datasheet to see if the interfaces that you desire for your application are present. Also, you mentioned that you need 2 SPI interfaces. The C5517 has only 1 SPI.
In reply to Lalindra Jayatilleke:
I have already noticed that and because of that I moved to the C6748 where al of those interfaces present all the time without any multiplexing.
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