CCS: mcp23s17 spi

rock

Intellectual 760 points

Other Parts Discussed in Thread: RM46L850

Tool/software: Code Composer Studio

how can we code slave address in spi in terms of clock polarity/phase, iodir?

over 6 years ago

0 JohnS over 6 years ago

TI__Guru**** 163035 points

Isn't mcp23s17 a microchip part? Are you trying to interface it with a TI processor? If so which one?

Regards,

John

0 rock over 6 years ago in reply to JohnS

Intellectual 760 points

HI JOHN. I m using rm46l850

0 JohnS over 6 years ago in reply to rock

TI__Guru**** 163035 points

Rakesh,

Thanks. I will loop in someone with rm46 expertise.

Regards,

John

0 Miro over 6 years ago in reply to JohnS

TI__Mastermind 21425 points

Hello,

From what I can see in MCP23S17 datasheet you can use RM46L850 with Polarity 0 Phase 1 (Figure 27-9 from RM46L850 TRM. All modes are described in Table 27-2).

Communication protocols and registers for MCP23S17 are described in MCP23S17 datasheet.

Best regards,
Miro

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CCS: mcp23s17 spi