I needed one of the above a few weeks ago and hunted these forums and the downloads and could never find one. It appears it is no longer part of the BSL.
I wrote one and am giving it to the community so no one else needs to reinvent the wheel. I didn't see an attachment mechanism so I pasted the code in place below. This blog editor mangled it pretty badly and I had to do manual patchup, so if it doesn't compile, it is likely 1-2 chars of typos.
TI, you can do better. As you can see, this isn't much code, but it does take TIME and TESTING to get a reliable package. This one is. I have been using it for several weeks and have turned cahce on/off/sizes and seen the measured code execution time effects.
TI, please consider including something like this in future BSL releases.
Thanks for considering it, Chris
Example usage:
CACHE_Init_L2 ( CACHE_L2MODE_DISABLED ) ; // I am using all of L2 for my fast arrays
CACHE_Init_L1P ( CACHE_L1MODE_32KB ) ;
CACHE_Init_L1D ( CACHE_L1MODE_32KB ) ;
evmc6748_cache.h: (I followed the naming convention so it even looks like it belongs in the BSL!)
#ifndef EVMC6748_CACHE_H
#define EVMC6748_CACHE_H
typedef enum {
CACHE_L2MODE_DISABLED= 0 ,
CACHE_L2MODE_32KB = 1 ,
CACHE_L2MODE_64KB = 2 ,
CACHE_L2MODE_128KB = 3 ,
CACHE_L2MODE_256KB = 4 , // this is the max available on the 6748 as of March 2012
CACHE_L2MODE_MAX = 7
} Cache_L2mode_t;
typedef enum {
CACHE_L1MODE_DISABLED= 0 ,
CACHE_L1MODE_4KB = 1 ,
CACHE_L1MODE_8KB = 2 ,
CACHE_L1MODE_16KB = 3 ,
CACHE_L1MODE_32KB = 4 , // this is the max available on the 6748 as of March 2012
CACHE_L1MODE_MAX = 7
} Cache_L1mode_t;
#define CACHE_L2CFG ( (volatile uint32_t *) 0x01840000 )
#define CACHE_L1PCFG ( (volatile uint32_t *) 0x01840020 )
#define CACHE_L1DCFG ( (volatileuint32_t *) 0x01840040 )
voidCACHE_Init_L2 ( Cache_L2mode_tL2mode ) ;
extern voidCACHE_Init_L1P ( Cache_L1mode_tL1mode ) ;
extern voidCACHE_Init_L1D ( Cache_L1mode_tL1mode ) ;
#endif
evmc6748_cache.h:
#include <evmc6748.h>
#include <evmc6748_cache.h>
extern voidCACHE_Init_L2 ( Cache_L2mode_tL2mode )
{
*CACHE_L2CFG = L2mode ;
}
extern voidCACHE_Init_L1P ( Cache_L1mode_t L1mode )
{
*CACHE_L1PCFG = L1mode ;
}
extern voidCACHE_Init_L1D ( Cache_L1mode_t L1mode )
{
*CACHE_L1DCFG = L1mode ;
}
<end of code and post>
