Hi all, Im building a project with an LPC2106 (master) connected with 3 SPI slaves devices, two with CPOL =0 , CPHA =0 and another device with CPOL=0 ,CPHA=1. First of all I configured the two devices with CPOL =0 , CPHA =0 and I didn't had problems. But when i tried to include to the system the device with CPOL=0 ,CPHA=1 the problems began to apear. After some debugging i conclude the problem apears when I configure the CPHA "dinamicaly" in teh code . With the same code I initialized (and never change) the CPHA=0 and the 2 devices (CPOL =0 , CPHA =0) worked ok. After that I initialized (and never change) the CPHA=1 and the device (CPOL =0 , CPHA =1) and worked OK. Finnaly , When I changed dinamicaly the CPHA in the code and I conected the three devices only he "CPHA=1" decvice worked OK. This sound familiar? any had the same problem? Thanks in advance Rodrigo
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SPI Problem - CPHA configuration
2006-05-06 by rod_linares
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