Go to the documentation of this file.00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00022
00023
00024
00025
00026
00027
00028
00029
00030
00031
00032
00033
00034
00035
00036
00037
00038
00039
00040
00041
00042
00043
00044
00045
00046
00047
00048
00049
00050
00051
00052
00053
00054
00055
00056
00057
00058
00059
00060
00061
00062
00063
00064
00065
00066
00067
00068
00069
00070
00071
00072
00073
00074
00075
00076
00077
00078
00079
00080 #include "board.h"
00081
00082 #include <stdbool.h>
00083 #include <stdio.h>
00084
00085
00086
00087
00088
00089
00090
00091
00092
00093
00094 static uint32_t _sdramAccess(uint32_t baseAddr, uint32_t size)
00095 {
00096 uint32_t i;
00097 uint32_t ret = 1;
00098 uint32_t *ptr32 = (uint32_t *) baseAddr;
00099 uint16_t *ptr16 = (uint16_t *) baseAddr;
00100 uint8_t *ptr8 = (uint8_t *) baseAddr;
00101
00102 printf(" Test for 55AA55AA/AA55AA55 pattern ... \n\r");
00103 for (i = 0; i < size ; i ++) {
00104 if (i & 1) {
00105 ptr32[i] = 0x55AA55AA ;
00106 }
00107 else {
00108 ptr32[i] = 0xAA55AA55 ;
00109 }
00110 memory_barrier()
00111 }
00112 for (i = 0; i < size ; i++) {
00113 if (i & 1) {
00114 if (ptr32[i] != 0x55AA55AA ) {
00115 printf("-E- Expected:%x, read %x @ %x \n\r" ,
00116 0x55AA55AA, (unsigned)(ptr32[i]), (unsigned)(baseAddr + i));
00117 ret = 0;
00118
00119 }
00120 }
00121 else {
00122 if (ptr32[i] != 0xAA55AA55 ) {
00123 printf("-E- Expected:%x, read %x @ %x \n\r" ,
00124 0xAA55AA55 , (unsigned)(ptr32[i]), (unsigned)(baseAddr + i));
00125 ret = 0;
00126 }
00127 }
00128 }
00129
00130 if (!ret) return ret;
00131 printf(" Test for BYTE accessing... \n\r");
00132
00133 for (i = 0; i < size ; i ++) {
00134 ptr8[i] = (uint8_t)( i & 0xFF) ;
00135 }
00136
00137 for (i = 0; i < size ; i++) {
00138 if (ptr8[i] != (uint8_t)(i & 0xFF)) {
00139 printf("-E- Expected:%x, read %x @ %x \n\r" ,
00140 (unsigned)(i & 0xFF), ptr8[i], (unsigned)(baseAddr + i));
00141 ret = 0;
00142 }
00143 }
00144 if (!ret) return ret;
00145
00146 printf(" Test for WORD accessing... \n\r");
00147
00148 for (i = 0; i < size / 2 ; i ++) {
00149 ptr16[i] = (uint16_t)( i & 0xFFFF) ;
00150 }
00151
00152 for (i = 0; i < size / 2 ; i++) {
00153 if (ptr16[i] != (uint16_t)(i & 0xFFFF)) {
00154 printf("-E- Expected:%x, read %x @ %x \n\r" ,
00155 (unsigned)(i & 0xFFFF), ptr16[i], (unsigned)(baseAddr + i));
00156 ret = 0;
00157 }
00158 }
00159 if (!ret) return ret;
00160 printf(" Test for DWORD accessing... \n\r");
00161
00162 for (i = 0; i < size / 4 ; i ++) {
00163 ptr32[i] = (uint32_t)( i & 0xFFFFFFFF) ;
00164 memory_barrier()
00165 }
00166 for (i = 0; i < size / 4 ; i++) {
00167 if (ptr32[i] != (uint32_t)(i & 0xFFFFFFFF)) {
00168 printf("-E- Expected:%x, read %x @ %x \n\r" ,
00169 (unsigned)(i & 0xFFFFFFFF), (unsigned)(ptr32[i]),(unsigned)(baseAddr + i));
00170 ret = 0;
00171 }
00172 }
00173 return ret;
00174 }
00175
00176
00177
00178
00179
00180
00181
00182
00183
00184 extern int main( void )
00185 {
00186
00187 WDT_Disable( WDT ) ;
00188
00189
00190 SCB_EnableICache();
00191 SCB_EnableDCache();
00192
00193
00194 printf( "\n\r-- SDRAM Example %s --\n\r", SOFTPACK_VERSION ) ;
00195 printf( "-- %s\n\r", BOARD_NAME ) ;
00196 printf( "-- Compiled: %s %s With %s--\n\r", __DATE__, __TIME__ , COMPILER_NAME);
00197
00198 TRACE_INFO("Configuring External SDRAM \n\r");
00199
00200 BOARD_ConfigureSdram();
00201
00202
00203 TRACE_INFO("Starting memory validation of External SDRAM \n\r");
00204
00205 if (_sdramAccess(SDRAM_CS_ADDR, 0x200000)) {
00206 TRACE_INFO("Test succeeded!");
00207 } else {
00208 TRACE_INFO("Test failed!");
00209 }
00210 return 1;
00211 }
00212