c6748e JATG调试

li sa

大家好，我再使用JATG调试c6748e，现在使用串口解密JATG，JATG可以连上，如果只是运行hello work的话，JATG会保持良好的连接，但是运行实例时，刚运行完没事，一会就打印以下错误：

ICEPICK_C: Error: (Error -2172 @ 0x0) Unable to communicate with the emulator. Confirm emulator configuration and connections, reset the emulator, and retry the operation. (Emulation package 5.1.73.0)
ICEPICK_C: Unable to determine target status after 20 attempts
ICEPICK_C: Failed to remove the debug state from the target before disconnecting. There may still be breakpoint op-codes embedded in program memory. It is recommended that you reset the emulator before you connect and reload your program before you continue debugging
C674X_0: JTAG Communication Error: (Error -2172 @ 0x0) Unable to communicate with the emulator. Confirm emulator configuration and connections, reset the emulator, and retry the operation. (Emulation package 5.1.73.0)
C674X_0: Failed to remove the debug state from the target before disconnecting. There may still be breakpoint op-codes embedded in program memory. It is recommended that you reset the emulator before you connect and reload your program before you continue debugging

我加入断点，发现只要运行以下代码就出错了，希望大家帮帮忙，小白很郁闷。

psc1Regs->MDCTL[CSL_PSC_DDR2_MDDR] = CSL_FMKT( PSC_MDCTL_NEXT, ENABLE )
           | CSL_FMKT( PSC_MDCTL_LRST, DEASSERT );
   // move EMIFB PSC to Next state
   psc1Regs->PTCMD = CSL_FMKT( PSC_PTCMD_GO0, SET );

   // wait for transition
   while ((CSL_FEXT( psc1Regs->MDSTAT[CSL_PSC_DDR2_MDDR], PSC_MDSTAT_STATE )
           != CSL_PSC_MDSTAT_STATE_ENABLE)&& (timeoutCount > 0) ){
       timeoutCount--;
   }

7 年多前

0 Shine 7 年多前

TI__Guru**** 357097 points

现在对PTCMD可以读写了？

在GEL文件中有对PSC初始化吗？

0 li sa 7 年多前回复 Shine

Prodigy 250 points

现在还不可以对PTCMD写。读出来的一直都是默认值。用gel初始化的时候，都超时，我就在代码里初始化了。感觉好像有的寄存器不可以写似的，比如KICK0R ，KICK1R 写后读出来还是0，但是CFGCHIP3 却可以改变。

sys0Regs->KICK0R = 0x83e70b13; // Kick0 register + data (unlock)
sys0Regs->KICK1R = 0x95a4f1e0; // Kick1 register + data (unlock)
sys0Regs->CFGCHIP3 |= ((0 << 7) & 0x00000080);

gel的psc初始化是这样的：
PSC0_LPSC_enable(0, LPSC_EDMA_CC0);
PSC0_LPSC_enable(0, LPSC_EDMA_TC0);
……

/*Enable Function for PSC0*/
PSC0_LPSC_enable(unsigned int PD, unsigned int LPSC_num) {
unsigned int j;

if( (*(unsigned int*)(PSC0_MDSTAT+4 * LPSC_num) & 0x1F) != 0x3 ) {
*(unsigned int*) (PSC0_MDCTL+4*LPSC_num) = (*(unsigned int*) (PSC0_MDCTL+4*LPSC_num) & 0xFFFFFFE0) | 0x0003;
PSC0_PTCMD = 0x1<<PD;

j = 0;
/*Wait for power state transition to finish*/
while( (PSC0_PTSTAT & (0x1<<PD) ) !=0) {
if( j++ > PSC_TIMEOUT ) {
GEL_TextOut("\tPSC0 Enable Transition Timeout on Domain %d, LPSC %d\n","Output",1,1,1,PD,LPSC_num);
break;
}
}

j = 0;
while( (*(unsigned int*)(PSC0_MDSTAT+4 * LPSC_num) & 0x1F) !=0x3) {
if( j++ > PSC_TIMEOUT ) {
GEL_TextOut("\tPSC0 Enable Verify Timeout on Domain %d, LPSC %d\n","Output",1,1,1,PD,LPSC_num);
break;
}
}
}
}

0 li sa 7 年多前回复 li sa

Prodigy 250 points

加断点编译会出现以下错误
ICEPICK_C: Error: (Error -2172 @ 0x0) Unable to communicate with the emulator. Confirm emulator configuration and connections, reset the emulator, and retry the operation. (Emulation package 5.1.73.0)
ICEPICK_C: Unable to determine target status after 20 attempts
ICEPICK_C: Failed to remove the debug state from the target before disconnecting. There may still be breakpoint op-codes embedded in program memory. It is recommended that you reset the emulator before you connect and reload your program before you continue debugging
C674X_0: JTAG Communication Error: (Error -2172 @ 0x0) Unable to communicate with the emulator. Confirm emulator configuration and connections, reset the emulator, and retry the operation. (Emulation package 5.1.73.0)
C674X_0: Failed to remove the debug state from the target before disconnecting. There may still be breakpoint op-codes embedded in program memory. It is recommended that you reset the emulator before you connect and reload your program before you continue debugging

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c6748e JATG调试