Hi.
I'm writing some code to send data to PCMCIA socket. The CPU we're using is Intel PXA255. I want to send "only 16 bits" to socket, but It sends low 16 bits and high 16 bits. I mean if I write 0x0055 to PCMCIA area, It sends 0x0055 and 0x0000. It causes some mal-function to my test device.
I wonder if there are any configurations on PXA255 to set to communicate only 16 bits by PCMCIA socket.
Give me a help, please.
Thanks.
Hi Marty,
I suppose you read/write registers are 32 bit so when you try to write 16 bit data it does a topsyturvy with your data!!!
This tells that you get the LSB first and then MSB.
Only solution what I can think of is while reading/retreiving the data you have to do a bit of manipulation such as (MSB) | (LSB >> 16)
OR while writing
A_32BIT_VARIABLE = (YOUR_16BIT_DATA >> 16) & (0x0000FFFF)
Then use this -> A_32BIT_VARIABLE
Hope this provides you the hint. Please do tell me, did that help you or not....
Thanks and regards, Satya i snipped-for-privacy@yahoo.com
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