sdk-debuger-jlink/Devices/NXP/iMX8MN/NXP_iMX8M_Connect_CortexM7.JLinkScript

/*********************************************************************
*               (c) SEGGER Microcontroller GmbH & Co. KG             *
*                        The Embedded Experts                        *
*                           www.segger.com                           *
**********************************************************************

-------------------------- END-OF-HEADER -----------------------------
*/

/*********************************************************************
*
*       ResetTarget
*/
void ResetTarget(void) {
  //
  // This device requires a special reset as default reset does not work for this device.
  // TBD
  //
}

/*********************************************************************
*
*       InitTarget
*/
void InitTarget(void) {
  // No need to configure debug config here, SEGGER will do auto scan 

  // clear sticky error flag
  U32 v;
  // v = _DP_CTRL_STAT_BIT_DBGPWRUPREQ | _DP_CTRL_STAT_BIT_SYSPWRUPREQ | _DP_CTRL_STAT_BIT_STICKYERR; // Clear sticky error flag
  v = (1<<28) | (1<<30) | (1 << 5);
  JLINK_CORESIGHT_WriteDP(JLINK_CORESIGHT_DP_REG_CTRL_STAT, v);

  // Check DAP successful
  v = JLINK_CORESIGHT_ReadDP(JLINK_CORESIGHT_DP_REG_CTRL_STAT);
  if (((v >> 28) & 0xF) != 0xF) {
    return -1;
  }
  Report("***************************************************");
  Report("J-Link script: iMX8M Nano Cortex-M7 J-Link script");
  Report("***************************************************");
  // AHB32 Read Register
  JLINK_CORESIGHT_WriteDP(JLINK_CORESIGHT_DP_REG_SELECT, (0 << 4) | (0 << 24));
  // JLINK_CORESIGHT_WriteAP(JLINK_CORESIGHT_AP_REG_CTRL, _DAP_ACC_32BIT_NO_AUTO_INC);
  JLINK_CORESIGHT_WriteAP(JLINK_CORESIGHT_AP_REG_ADDR, 0x3039000C);
  JLINK_CORESIGHT_WriteAP(JLINK_CORESIGHT_AP_REG_DATA, 0xAA);
  JLINK_CORESIGHT_WriteAP(JLINK_CORESIGHT_AP_REG_ADDR, 0x3039000C);
  v = JLINK_CORESIGHT_ReadAP(JLINK_CORESIGHT_AP_REG_DATA);
  Report1("****** Reset Release with M7_RCR : ", v);
}

/*********************************************************************
*
*       SetupTarget
*/
void SetupTarget(void)
{
  Report("***************************************************");
  Report("J-Link script: Prepare Landing Zone");
  Report("***************************************************");
  JLINK_MEM_WriteU32(0x7E0000, 0x20020000);
  JLINK_MEM_WriteU32(0x7E0004, 0x9);
  JLINK_MEM_WriteU32(0x7E0008, 0xE7FEE7FE);

  Report("***************************************************");
  Report("J-Link script: Release Wait");
  Report("***************************************************");
  JLINK_MEM_WriteU32(0x30340058, 0x0000000);
}