You can make function for setting up DMA which will do all work (i.e. swapping bytes to right endian)... SetDMA (channel, src_addr, dst_addr, len, ...); or have similar function which will write data from little-endian memory structure to DMA control structure: SetDMA (channel, &structure);
Hynek Sladky ronnym...@aol.com wrote: > I am programming the TI CC1110 RF transceiver with an 8051 core using > SDCC 2.8. > The chip has eight consecutive bytes that program an internal DMA > controller. For some reason, the bitfields for these eight bytes are > setup in reverse (Big Endian?). > This puts me at a little disadvantage for loading values into the DMA > registers. My work around will be to either reverse the bytes as they > are assigned to the 8 byte structure, or... reverse the order of the > bytes in a dummy structure,load the data, then reverse the bits of the > entire structure as it is loaded into the assigned DMA registers. Has > anyone else run into this, and is there a better way? > Thanks, > Ron ------------------------------------------------------------------------------ Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Source. http://p.sf.net/sfu/Xq1LFB _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user
