Go to the documentation of this file.00001
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00083 #include "board.h"
00084
00085 #include <stdint.h>
00086 #include <stdio.h>
00087
00088
00089
00090
00091
00092
00093 #define SCR_SLEEPDEEP (0x1 << 2)
00094
00095 #define CONSOLE_EDBG
00096
00097
00098
00099
00100
00101 const uint32_t gWakeUpPinId = (1 << 6);
00102
00103
00104
00105
00106
00107 #if defined CONSOLE_EDBG
00108
00109
00110
00111 void USART1_Handler(void)
00112 {
00113 USART_GetChar(USART1);
00114 }
00115 #else
00116 void UART0_Handler(void)
00117 {
00118 UART_GetChar(UART0);
00119 }
00120 #endif
00121
00122
00123
00124
00125 static void _InitChip( void )
00126 {
00127
00128 PIOA -> PIO_ODR = 0xFFFFFFFF;
00129 PIOB -> PIO_ODR = 0xFFFFFFFF;
00130 PIOC -> PIO_ODR = 0xFFFFFFFF;
00131 PIOD -> PIO_ODR = 0xFFFFFFFF;
00132 PIOE -> PIO_ODR = 0xFFFFFFFF;
00133
00134 PIOA ->PIO_PPDDR = 0xFFFFFFFF;
00135 PIOA ->PIO_PUDR = 0xFFFFFFFF;
00136 PIOA ->PIO_PPDER = 0;
00137 PIOA ->PIO_PUER = 0xFFFFFFFF;
00138
00139 PIOB ->PIO_PPDDR = 0xFFFFFFFF;
00140 PIOB ->PIO_PUDR = 0xFFFFFFFF;
00141 PIOB ->PIO_PPDER = 0x0;
00142 PIOB ->PIO_PUER = 0xFFFFFFFF;
00143
00144 PIOC ->PIO_PPDDR = 0xFFFFFFFF;
00145 PIOC ->PIO_PUDR = 0xFFFFFFFF;
00146 PIOC ->PIO_PPDER = 0;
00147 PIOC ->PIO_PUER = 0xFFFFFFFF;
00148
00149 PIOD ->PIO_PPDDR = 0xFFFFFFFF;
00150 PIOD ->PIO_PUDR = 0xFFFFFFFF;
00151 PIOD ->PIO_PPDER = 0;
00152 PIOD ->PIO_PUER = 0xFFFFFFFF;
00153
00154 PIOE ->PIO_PPDDR = 0xFFFFFFFF;
00155 PIOE ->PIO_PUDR = 0xFFFFFFFF;
00156 PIOE ->PIO_PPDER = 0;
00157 PIOE ->PIO_PUER = 0xFFFFFFFF;
00158
00159 SUPC->SUPC_MR |= SUPC_MR_KEY_PASSWD | ((SUPC -> SUPC_MR) &( ~(1u <<17))) ;
00160
00161
00162 PMC->CKGR_UCKR &= ~CKGR_UCKR_UPLLEN;
00163
00164
00165 PMC->PMC_SCDR = 0xFFFFFFFF;
00166
00167
00168 PMC_DisableAllPeripherals();
00169 }
00170
00171
00172
00173
00174
00175
00176 static void _SetFastStartupInput( uint32_t dwInputs )
00177 {
00178 PMC->PMC_FSMR &= (uint32_t)~0xFFF00000;
00179 PMC->PMC_FSMR |= dwInputs ;
00180 }
00181
00182
00183
00184
00185
00186 static void enterWaitMode( void )
00187 {
00188 printf( "-I- Enter in Wait Mode\n\r" );
00189 printf( "-I- Press WAKE UP button to wakeup\n\r" ) ;
00190
00191
00192 PMC_SetMckSelection(PMC_MCKR_CSS_SLOW_CLK, PMC_MCKR_PRES(0));
00193
00194 PMC_EnableIntRC4_8_12MHz(CKGR_MOR_MOSCRCF_4_MHz);
00195
00196 PMC_SetMckSelection(PMC_MCKR_CSS_MAIN_CLK, PMC_PCK_PRES(0));
00197
00198 PMC_SetPllaClock(0, 0);
00199
00200
00201 _SetFastStartupInput( gWakeUpPinId ) ;
00202
00203 PMC->PMC_FSMR |= PMC_FSMR_FLPM_FLASH_DEEP_POWERDOWN | PMC_FSMR_LPM;
00204
00205 EFC->EEFC_FMR = EEFC_FMR_FWS(0);
00206
00207 SCB->SCR &= (uint32_t)~SCR_SLEEPDEEP ;
00208
00209
00210 PMC->CKGR_MOR = CKGR_MOR_KEY_PASSWD | CKGR_MOR_WAITMODE;
00211
00212 while( !(PMC->PMC_SR & PMC_SR_MCKRDY ) );
00213 __WFE() ;
00214
00215
00216 PMC_SetMckSelection(PMC_MCKR_CSS_SLOW_CLK, PMC_MCKR_PRES_CLK_1);
00217 LowLevelInit();
00218 DBG_Configure(115200, BOARD_MCK);
00219
00220 printf( "-I- Exit Wait Mode\n\r" ) ;
00221 }
00222
00223
00224
00225
00226 static void enterSleepMode( void )
00227 {
00228 printf( "-I- Enter in Sleep Mode\n\r" ) ;
00229 printf( "-I- Press any key to wakeup\n\r" ) ;
00230
00231
00232
00233
00234
00235 PMC->PMC_FSMR &= (uint32_t)~PMC_FSMR_LPM ;
00236 SCB->SCR &= (uint32_t)~SCR_SLEEPDEEP ;
00237
00238
00239
00240 #if defined CONSOLE_EDBG
00241 NVIC_ClearPendingIRQ(USART1_IRQn);
00242 NVIC_EnableIRQ(USART1_IRQn);
00243 USART_EnableIt(USART1,UART_IER_RXRDY);
00244 #else
00245 NVIC_ClearPendingIRQ(UART0_IRQn);
00246 NVIC_EnableIRQ(UART0_IRQn);
00247 UART_EnableIt(UART0,UART_IER_RXRDY);
00248 #endif
00249
00250
00251 __WFI() ;
00252 printf("-I- Processor wake-up is triggered by an interrupt \n\r");
00253 printf("-I- Exit Sleep Mode\n\r" ) ;
00254 }
00255
00256
00257
00258
00259 static void enterBackupMode( void )
00260 {
00261 printf( "-I- Enter in Backup Mode\n\r" ) ;
00262 printf( "-I- Press WAKE UP button to wakeup\n\r" ) ;
00263
00264 SUPC->SUPC_WUIR = (gWakeUpPinId << 16) | gWakeUpPinId ;
00265 PMC->PMC_FSMR = PMC_FSMR_FLPM_FLASH_DEEP_POWERDOWN | gWakeUpPinId;
00266
00267 SCB->SCR |= SCR_SLEEPDEEP ;
00268
00269 SUPC->SUPC_CR = SUPC_CR_KEY_PASSWD | SUPC_CR_VROFF_STOP_VREG;
00270 SUPC->SUPC_WUMR = (1<<12) ;
00271
00272
00273
00274
00275
00276
00277
00278 printf("-I- Processor wake-up is triggered by WAKEUP button \n\r");
00279 printf("-I- Exit backup Mode\n\r" ) ;
00280 while(1);
00281 }
00282
00283
00284
00285
00286 static void _DisplayMenuCore( void )
00287 {
00288 printf( "\n\r" ) ;
00289 printf( "===========================================================\n\r" ) ;
00290 printf( "Menu: press a key to select low power mode.\n\r" ) ;
00291 printf( "===========================================================\n\r" ) ;
00292 printf( "Configure:\n\r" ) ;
00293 printf( " S : Sleep mode\n\r" ) ;
00294 printf( " W : Wait mode\n\r" );
00295 printf( " B : Backup mode\n\r" );
00296 }
00297
00298
00299
00300
00301
00302 static void lowPowerMode( void )
00303 {
00304 uint8_t ucKey;
00305
00306 while ( 1 ) {
00307 _DisplayMenuCore() ;
00308 ucKey = DBG_GetChar();
00309 switch ( ucKey )
00310 {
00311 case 's' :
00312 case 'S' :
00313 enterSleepMode() ;
00314 break ;
00315
00316 case 'w' :
00317 case 'W' :
00318 enterWaitMode();
00319 break ;
00320
00321 case 'b' :
00322 case 'B' :
00323 enterBackupMode();
00324 break ;
00325
00326 default :
00327 printf( "This menu does not exist !\n\r" ) ;
00328 break ;
00329 }
00330 }
00331 }
00332
00333
00334
00335
00336
00337
00338 int main(void)
00339 {
00340
00341 WDT_Disable( WDT ) ;
00342
00343
00344 SCB_EnableICache();
00345 SCB_EnableDCache();
00346
00347
00348 _InitChip() ;
00349
00350
00351 printf( "\n\r\n\r\n\r" ) ;
00352 printf( "-- Low-power Example %s --\n\r", SOFTPACK_VERSION ) ;
00353 printf( "-- %s\n\r", BOARD_NAME ) ;
00354 printf( "-- Compiled: %s %s With %s--\n\r", __DATE__, __TIME__ , COMPILER_NAME) ;
00355
00356
00357 lowPowerMode();
00358 return 0 ;
00359 }