LPC4357 SDRAM内存调试

__var __mac_temp_STAT;



__PLL0(){



  //Reset, BASE_M4_CLK = IRC

  __writeMemory32(0X01000800,0x4005006C,"Memory");

  

  //OSC Enable

  __writeMemory32(__readMemory32(0x40050018,"Memory")& (~(1<<0)),0x40050018,"Memory");

  __delay(100);

  

  //Set PLL 96MHz

  __writeMemory32(0X00000001,0x40050044,"Memory");

  __writeMemory32(0X065F2100,0x40050044,"Memory");



  //wait PLL lock

  do

  {

   __mac_temp_STAT = __readMemory32(0x40050040,"Memory");

  }

  while((__mac_temp_STAT & 1) == 0);

  

  //CGU_BASE_M4_CLK = PLL1

  __writeMemory32(0x09000800,0x4005006C,"Memory");

  

  __writeMemory32(__readMemory32(0x4004312C,"Memory")&(~(1<<16)),0x4004312C,"Memory");  //CREG6 EMC_CLK_DIV = 0

  __writeMemory32(__readMemory32(0x40051430,"Memory")| (1<<0),0x40051430,"Memory");     //CLK_M4_EMC_CFG Enable

  do

  {

   __mac_temp_STAT = __readMemory32(0x40051434,"Memory");       //CCU1_CLK_M4_EMC_STAT

  }

  while((__mac_temp_STAT & 1) == 0);



  __writeMemory32(__readMemory32(0x40051478,"Memory")| (1<<0),0x40051478,"Memory");     //CLK_M4_EMCDIV Enable

  do

  {

   __mac_temp_STAT = __readMemory32(0x4005147C,"Memory");       //CCU1_CLK_M4_EMCDIV_STAT

  }

  while((__mac_temp_STAT & 1) == 0);

}



__Setup(){

  

  //Disable EMC

  __writeMemory32(0x00000000,0x40005000,"Memory");

  

  //Configure EMC port pins

  __writeMemory32(0X000000F3,0x4008609C,"Memory");  /* P1_7:  D0 */

  __writeMemory32(0X000000F3,0x400860A0,"Memory");  /* P1_8:  D1 */

  __writeMemory32(0X000000F3,0x400860A4,"Memory");  /* P1_9:  D2 */

  __writeMemory32(0X000000F3,0x400860A8,"Memory");  /* P1_10: D3 */

  __writeMemory32(0X000000F3,0x400860AC,"Memory");  /* P1_11: D4 */

  __writeMemory32(0X000000F3,0x400860B0,"Memory");  /* P1_12: D5 */

  __writeMemory32(0X000000F3,0x400860B4,"Memory");  /* P1_13: D6 */

  __writeMemory32(0X000000F3,0x400860B8,"Memory");  /* P1_14: D7 */

  __writeMemory32(0X000000F2,0x40086290,"Memory");  /* P5_4:  D8 */

  __writeMemory32(0X000000F2,0x40086294,"Memory");  /* P5_5:  D9 */

  __writeMemory32(0X000000F2,0x40086298,"Memory");  /* P5_6:  D10 */

  __writeMemory32(0X000000F2,0x4008629C,"Memory");  /* P5_7:  D11 */

  __writeMemory32(0X000000F2,0x40086280,"Memory");  /* P5_0:  D12 */

  __writeMemory32(0X000000F2,0x40086284,"Memory");  /* P5_1:  D13 */

  __writeMemory32(0X000000F2,0x40086288,"Memory");  /* P5_2:  D14 */

  __writeMemory32(0X000000F2,0x4008628C,"Memory");  /* P5_3:  D15 */

  __writeMemory32(0X000000F2,0x40086688,"Memory");  /* PD_2:  D16 */

  __writeMemory32(0X000000F2,0x4008668C,"Memory");  /* PD_3:  D17 */

  __writeMemory32(0X000000F2,0x40086690,"Memory");  /* PD_4:  D18 */

  __writeMemory32(0X000000F2,0x40086694,"Memory");  /* PD_5:  D19 */

  __writeMemory32(0X000000F2,0x40086698,"Memory");  /* PD_6:  D20 */

  __writeMemory32(0X000000F2,0x4008669C,"Memory");  /* PD_7:  D21 */ 

  __writeMemory32(0X000000F2,0x400866A0,"Memory");  /* PD_8:  D22 */

  __writeMemory32(0X000000F2,0x400866A4,"Memory");  /* PD_9:  D23 */

  __writeMemory32(0X000000F3,0x40086714,"Memory");  /* PE_5:  D24 */

  __writeMemory32(0X000000F3,0x40086718,"Memory");  /* PE_6:  D25 */

  __writeMemory32(0X000000F3,0x4008671C,"Memory");  /* PE_7:  D26 */

  __writeMemory32(0X000000F3,0x40086720,"Memory");  /* PE_8:  D27 */

  __writeMemory32(0X000000F3,0x40086724,"Memory");  /* PE_9:  D28 */

  __writeMemory32(0X000000F3,0x40086728,"Memory");  /* PE_10: D29 */

  __writeMemory32(0X000000F3,0x4008672C,"Memory");  /* PE_11: D30 */

  __writeMemory32(0X000000F3,0x40086730,"Memory");  /* PE_12: D31 */



  __writeMemory32(0X000000F3,0x40086124,"Memory");  /* P2_9:  A0 */

  __writeMemory32(0X000000F3,0x40086128,"Memory");  /* P2_10: A1 */

  __writeMemory32(0X000000F3,0x4008612C,"Memory");  /* P2_11: A2 */

  __writeMemory32(0X000000F3,0x40086130,"Memory");  /* P2_12: A3 */

  __writeMemory32(0X000000F3,0x40086134,"Memory");  /* P2_13: A4 */

  __writeMemory32(0X000000F2,0x40086080,"Memory");  /* P1_0:  A5 */

  __writeMemory32(0X000000F2,0x40086084,"Memory");  /* P1_1:  A6 */

  __writeMemory32(0X000000F2,0x40086088,"Memory");  /* P1_2:  A7 */

  __writeMemory32(0X000000F3,0x40086120,"Memory");  /* P2_8:  A8 */

  __writeMemory32(0X000000F3,0x4008611C,"Memory");  /* P2_7:  A9 */

  __writeMemory32(0X000000F2,0x40086118,"Memory");  /* P2_6:  A10 */

  __writeMemory32(0X000000F2,0x40086108,"Memory");  /* P2_2:  A11 */

  __writeMemory32(0X000000F2,0x40086104,"Memory");  /* P2_1:  A12 */

  __writeMemory32(0X000000F2,0x40086100,"Memory");  /* P2_0:  A13 */

  __writeMemory32(0X000000F1,0x40086320,"Memory");  /* P6_8:  A14 */



  // Byte enables

  __writeMemory32(0x000000F3,0x40086090,"Memory");  // P1_4  BLS 0

  __writeMemory32(0x000000F1,0x40086318,"Memory");  // P6_6  BLS 1

  __writeMemory32(0x000000F2,0x400866B4,"Memory");  // PD_13 BLS 2

  __writeMemory32(0x000000F2,0x400866A8,"Memory");  // PD_10 BLS 3

  

  __writeMemory32(0X000000F3,0x40086324,"Memory");  /* P6_9:  DYCS0 */

  __writeMemory32(0X000000F3,0x40086098,"Memory");  /* P1_6:  WE */

  __writeMemory32(0X000000F3,0x40086310,"Memory");  /* P6_4:  CAS */

  __writeMemory32(0X000000F3,0x40086314,"Memory");  /* P6_5:  RAS */

  

  //Configure EMC clock-out pins

  __writeMemory32(0X000000F0,0x40086C00,"Memory");  /* CLK0 */

  __writeMemory32(0X000000F0,0x40086C04,"Memory");  /* CLK1 */

  __writeMemory32(0X000000F0,0x40086C08,"Memory");  /* CLK2 */

  __writeMemory32(0X000000F0,0x40086C0C,"Memory");  /* CLK3 */

  

  //CKEOUT0 DQMOUT0 DQMOUT1 DQMOUT2 DQMOUT3

  __writeMemory32(0X000000F3,0x4008632C,"Memory");  /* P6_11: CKEOUT0 */

  __writeMemory32(0X000000F3,0x40086330,"Memory");  /* P6_12: DQMOUT0 */

  __writeMemory32(0X000000F3,0x40086328,"Memory");  /* P6_10: DQMOUT1 */

  __writeMemory32(0X000000F2,0x40086680,"Memory");  /* PD_0:  DQMOUT2 */

  __writeMemory32(0X000000F3,0x40086734,"Memory");  /* PE_13: DQMOUT3 */



  __writeMemory32(0X000000F3,0x4008608C,"Memory");  // OE,  SFSP1_3

  __writeMemory32(0X000000F3,0x40086094,"Memory");  // CS0, SFSP1_5

  __writeMemory32(0X000000F3,0x40086098,"Memory");  // WE,  SFSP1_6

  

  // enable CS0 and setup the timing

  // 90ns 32-bit Flash on CS0

  __writeMemory32(0x00000001,0x40005000,"Memory");  /*EMC_CONTROL (EMC Enable) */

  

  __writeMemory32(0x00000082,0x40005200,"Memory");  // CS0: 32 bit, WE

  __writeMemory32(0x00000002,0x40005208,"Memory");  // CS0: WAITOEN = 2

  __writeMemory32(0x0000000B,0x4000520C,"Memory");  // CS0: WAITRD  = 11



  //Set EMC clock output delay

  //EMCDELAYCLK (2.5.0 ns EMC clock out delay)

  __writeMemory32(0x00005555,0x40086D00,"Memory");

  

  __writeMemory32(0x00000001,0x40005000,"Memory");  /*EMC_CONTROL (EMC Enable) */

  __writeMemory32(0x00000000,0x40005008,"Memory");  /*EMC_CONFIG (Little-endian, Clock Ratio 1:1) */

  __writeMemory32(0X00005500,0x40005100,"Memory");  /*DYNAMICCONFIG0 */

  __writeMemory32(0x00000303,0x40005104,"Memory");  /*DYNAMICRASCAS0( Latency: RAS 3, CAS 3 CCLK cyc.)*/

  __writeMemory32(0x00000001,0x40005028,"Memory");  /*DYNAMICREADCONFIG (Command delayed by 1/2 CCLK) */



  __writeMemory32(1,0x40005030,"Memory");  //DYNAMICRP

  __writeMemory32(3,0x40005034,"Memory");  //DYNAMICRAS

  __writeMemory32(6,0x40005038,"Memory");  //DYNAMICSREX

  __writeMemory32(1,0x4000503C,"Memory");  //DYNAMICAPR

  __writeMemory32(5,0x40005040,"Memory");  //DYNAMICDAL

  __writeMemory32(1,0x40005044,"Memory");  //DYNAMICWR

  __writeMemory32(5,0x40005048,"Memory");  //DYNAMICRC

  __writeMemory32(5,0x4000504C,"Memory");  //DYNAMICRFC

  __writeMemory32(6,0x40005050,"Memory");  //DYNAMICXSR

  __writeMemory32(1,0x40005054,"Memory");  //DYNAMICRRD

  __writeMemory32(2,0x40005058,"Memory");  //DYNAMICMRD



  __delay(100);

  __writeMemory32(0x00000183,0x40005020,"Memory");      /*DYNAMICCONTROL (Issue NOP command) */

  __delay(10);

  __writeMemory32(0x00000103,0x40005020,"Memory");      /*DYNAMICCONTROL (Issue PALL command) */

  __delay(1);

  __writeMemory32(0x00000002,0x40005024,"Memory");      /*DYNAMICREFRESH */

  __delay(10);

  __writeMemory32(0x0000006E,0x40005024,"Memory");      /*DYNAMICREFRESH */

  __delay(10);

  __writeMemory32(0x00000083,0x40005020,"Memory");      /*DYNAMICCONTROL (Issue MODE command) */

  __readMemory32(0x2800C800,"Memory");

  __delay(10);

  __writeMemory32(0x00000003,0x40005020,"Memory");      /*DYNAMICCONTROL (Issue NORMAL command) */

  

  //DYNAMICCONFIG0 (Enable buffer)

  __writeMemory32(__readMemory32(0x40005100,"Memory") | (1 << 19),0x40005100,"Memory");



  __delay(200);

}



execUserReset()

{

  __message "execUserReset\n";

  __Setup();

  __writeMemory32(0X28000000,0x40043100,"Memory");      //Set CREG_M4MEMMAP

  __message "execUserReset Finish\n";

}



execUserPreload(){

  __message "execUserPreload\n";

  __PLL0();     //Set PLL0

  __Setup();

  __message "execUserPreload Finish\n";

}