I use TMDXEVM1808L board with the Blackhawk USB100v2 emulator. Board Support Library contains many examples which load code into internal SRAM and then loaded code changes PLL settings:
#if NO_GEL
EVMAM1808_init();
EVMAM1808_initRAM();
#endif
The functions work properly. But I want to load my code into external DDR memory through JTAG, so I have to enable mDDR in GEL. AM1808.gel has commented function
/* Core_300MHz_mDDR_132MHz(); */
I uncommented this string and then got the message during loading my code:
ARM9_0: Output: Memory Map Cleared.
ARM9_0: Output: ---------------------------------------------
ARM9_0: Output: Memory Map Setup Complete.
ARM9_0: Output: ---------------------------------------------
ARM9_0: Output: Enabling Full EVM PSCs...
ARM9_0: Output: PSC Enable Complete.
ARM9_0: Output: ---------------------------------------------
ARM9_0: GEL: Error while executing OnTargetConnect(): Target failed to write memory at 0x01C11138.
ARM9_0: File Loader: Data verification failed at address 0xC000C000 Please verify target memory and memory map.
The problem occurs when GEL is trying to execute this string:
/*Set the GOSET bit in PLLCMD to 1 to initiate a new divider transition.*/
PLL0_PLLCMD |= 0x1;
Now I’m using only “Set_mDDR_132MHz();” in the GEL and then “EVMAM1808_init();” function without touching PLL1 in my C code. It works, but I can see warning message “ARM9_0: Warning: 0x60000060/-1029 @ marker 11103 Error during: Execution, Initialization, The ICECrusher register scan returned invalid data“ in debugger console.
If I try to change PLL settings in C code like this:
SYSCONFIG->KICKR[0] = KICK0R_UNLOCK;
SYSCONFIG->KICKR[1] = KICK1R_UNLOCK;
config_pll0(0,4,1,0,1,11,5);
config_pll1(4,1,0,1,2);
debugger stops with error:
ARM9_0: Error: 0xA0002060/-242 @ marker 10825 Error during: Execution, Initialization, Control,
ARM9_0: Warning: 0x60000060/-1029 @ marker 11103 Error during: Execution, Initialization, The ICECrusher register scan returned invalid data
How to work with the PLLs and debugger properly?
