> Meysam Peykanu wrote:
>> Hi everyone,
>> I have problem with serial perioheral interface SPI of 89c51rd2. It
>> simply doesn't output anything. no clock no data!
Tamisoft wrote:
> I have the same problem, did you find any solutions since?

It would help if you specified whose RD2 you are using ?
More than one vendor makes RD2 with SPI - I know of SST and Atmel,
there are probably more...
Also check the errata ?

-jg

I have the same problem, did you find any solutions since?

THX
Levi

Hi everyone,
I have problem with serial perioheral interface SPI of 89c51rd2. It
simply doesn't output anything. no clock no data!
I had checked the system with atmel example code too. no effect:(
The chip has a register for the SPI status and it shows collision even
when I haven't send any data to the transmit register. It also shows
inapprapriate level of /SS and /SS deasserted although I have
connected the /SS pin to VCC.
(SPATA: WCOL,SSERR,MODF =1)
other configurations:
SPCON: 
SPEN ,SSDIS ,MSTR , CPOL, CPHA = 1 

Thanx,

M.P