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8051/8032 interface with SJA 1000 CAN controller

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abid_ms

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Hi,

I want to interface a CAN node with my 8032; to be specific P80C32, for which I need to interface with any CAN controller like SJA1000.

1. What is the interface between 8032 and SJA1000?

2. I have 64K external SRAM with battary back-up; How can I store my program in this memory (may be with /EA low)? Will it run once I switched off and on again?

Pl suggest your views...

Thanks in advance,
abid.
 

you can interface CAN to uc in two ways
1) memory mapped IO, used 8 bit address and data bus AD0 to AD7
2) you can use SPI interface which is available on some new chips and map it to the CAN chip. SJA 1000 dose not has SPI interface but many other chips have this interface.
hock
 

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