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00103 #include "board.h"
00104
00105 #include <stdbool.h>
00106 #include <stdio.h>
00107 #include <string.h>
00108
00109
00110
00111
00112
00113
00114 #define BUFFER_SIZE 256
00115
00116
00117 #define BAUDRATE 256000
00118
00119
00120 #define USART USART1
00121 #define ID_USART ID_USART1
00122
00123
00124
00125
00126
00127 static sXdmad dmad;
00128
00129 static uint32_t usartDmaRxChannel;
00130 static uint32_t usartDmaTxChannel;
00131
00132
00133 #define PIN_USART1_CTS_IOR {PIO_PA25A_CTS1, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
00134
00135
00136 const Pin pins[] = { PIN_USART1_RXD, PIN_USART1_TXD, PIN_USART1_CTS_IOR, PIN_USART1_RTS };
00137
00138
00139 char palette[BUFFER_SIZE-2]=
00140 "#*************************************************************************\n\r\
00141 * This application gives an example of how to use USART in LON mode.\n\r\
00142 * The LON mode provides connectivity to the local operating network (LON).\n\r\
00143 * .\n\r\
00144 ";
00145
00146
00147 COMPILER_ALIGNED(8) static char Buffer[BUFFER_SIZE];
00148
00149
00150 COMPILER_ALIGNED(8) static char pRecvBufferUSART[BUFFER_SIZE];
00151
00152
00153 static volatile uint8_t recvDone = 0;
00154
00155
00156 static volatile uint8_t transDone = 0;
00157
00158
00159
00160
00161
00162
00163
00164
00165 static void _ConfigureUsart( void )
00166 {
00167
00168
00169 uint32_t mode;
00170 Usart *pUsart = USART;
00171
00172
00173
00174
00175 USART_SetTransmitterEnabled( pUsart, 1 ) ;
00176 USART_SetReceiverEnabled( pUsart, 1 ) ;
00177
00178
00179
00180 PMC_EnablePeripheral( ID_USART ) ;
00181
00182 mode = US_MR_USART_MODE_LON | US_MR_USCLKS_MCK
00183 | US_MR_CHRL_8_BIT | US_MR_PAR_NO | US_MR_NBSTOP_1_BIT
00184 | US_MR_CHMODE_NORMAL
00185
00186 | US_MR_MAN;
00187
00188 pUsart->US_CR = US_CR_RSTRX | US_CR_RSTTX
00189 | US_CR_RXDIS | US_CR_TXDIS | US_CR_RSTSTA;
00190 pUsart->US_IDR = 0xFFFFFFFF;
00191
00192 pUsart->US_MR = mode;
00193
00194
00195 USART_SetBaudrate(pUsart, 0, BAUDRATE, BOARD_MCK);
00196
00197
00198
00199 pUsart->US_LONMR = US_LONMR_COMMT
00200 | US_LONMR_COLDET
00201 | US_LONMR_DMAM
00202 | US_LONMR_LCDS
00203 | US_LONMR_EOFS(1);
00204
00205
00206
00207
00208 pUsart->US_FIDI = 5;
00209 pUsart->US_LONB1TX = 5;
00210 pUsart->US_LONB1RX = 5;
00211 pUsart->US_TTGR = US_TTGR_PCYCLE(5);
00212 pUsart->US_LONPRIO = US_LONPRIO_PSNB(5)
00213 | US_LONPRIO_NPS(5);
00214
00215
00216
00217 if ( 0 == (pUsart->US_LONMR & US_LONMR_COMMT) )
00218 {
00219 pUsart->US_IDTTX = US_IDTTX_IDTTX(3);
00220 pUsart->US_IDTRX = US_IDTRX_IDTRX(3);
00221 }
00222
00223
00224
00225
00226
00227 pUsart->US_MAN = US_MAN_TX_PL(5) | US_MAN_TX_PP_ALL_ONE
00228 | US_MAN_RX_PL(5) | US_MAN_RX_PP_ALL_ONE
00229 | US_MAN_ONE | US_MAN_DRIFT;
00230
00231 pUsart->US_LONPR = US_LONPR_LONPL(5);
00232
00233
00234
00235 pUsart->US_CR = US_CR_RSTRX | US_CR_RSTTX;
00236 pUsart->US_CR = US_CR_RXEN | US_CR_TXEN;
00237 }
00238
00239
00240
00241
00242 void XDMAC_Handler(void)
00243 {
00244 XDMAD_Handler(&dmad);
00245 }
00246
00247
00248
00249
00250 static void _DmaRxCallback( uint8_t status, void* pArg )
00251 {
00252 status = status;
00253 pArg = pArg;
00254 recvDone = 1;
00255 }
00256
00257
00258
00259
00260 static void _DmaTxCallback( uint8_t status, void* pArg )
00261 {
00262 status = status;
00263 pArg = pArg;
00264 transDone = 1;
00265 }
00266
00267
00268
00269
00270 static void _DmaUsartTx( void )
00271 {
00272 sXdmadCfg xdmadCfg;
00273 xdmadCfg.mbr_ubc = BUFFER_SIZE;
00274 xdmadCfg.mbr_sa = (uint32_t)Buffer;
00275 xdmadCfg.mbr_da = (uint32_t)&USART->US_THR;
00276 xdmadCfg.mbr_cfg =
00277 XDMAC_CC_TYPE_PER_TRAN |
00278 XDMAC_CC_MBSIZE_SINGLE |
00279 XDMAC_CC_DSYNC_MEM2PER |
00280 XDMAC_CC_CSIZE_CHK_1 |
00281 XDMAC_CC_DWIDTH_BYTE |
00282 XDMAC_CC_SIF_AHB_IF0 |
00283 XDMAC_CC_DIF_AHB_IF1 |
00284 XDMAC_CC_SAM_INCREMENTED_AM |
00285 XDMAC_CC_DAM_FIXED_AM |
00286 XDMAC_CC_PERID(
00287 XDMAIF_Get_ChannelNumber(ID_USART, XDMAD_TRANSFER_TX)
00288 );
00289
00290 xdmadCfg.mbr_bc = 0;
00291 xdmadCfg.mbr_ds = 0;
00292 xdmadCfg.mbr_sus = 0;
00293 xdmadCfg.mbr_dus = 0;
00294 XDMAD_ConfigureTransfer(
00295 &dmad, usartDmaTxChannel, &xdmadCfg, 0, 0,
00296 XDMAC_CIE_BIE |
00297 XDMAC_CIE_DIE |
00298 XDMAC_CIE_FIE |
00299 XDMAC_CIE_RBIE |
00300 XDMAC_CIE_WBIE |
00301 XDMAC_CIE_ROIE);
00302 XDMAD_StartTransfer( &dmad, usartDmaTxChannel);
00303 }
00304
00305
00306
00307
00308 static void _DmaUsartRx( void )
00309 {
00310 uint32_t status;
00311
00312 status = USART->US_CSR;
00313 if ((status & US_CSR_RXRDY) == US_CSR_RXRDY )
00314 {
00315 status = USART->US_RHR;
00316 }
00317 sXdmadCfg xdmadCfg;
00318 xdmadCfg.mbr_ubc = BUFFER_SIZE - 1;
00319 xdmadCfg.mbr_sa = (uint32_t)&USART->US_RHR;
00320 xdmadCfg.mbr_da = (uint32_t)pRecvBufferUSART;
00321 xdmadCfg.mbr_cfg =
00322 XDMAC_CC_TYPE_PER_TRAN |
00323 XDMAC_CC_MBSIZE_SINGLE |
00324 XDMAC_CC_DSYNC_PER2MEM |
00325 XDMAC_CC_CSIZE_CHK_1 |
00326 XDMAC_CC_DWIDTH_BYTE |
00327 XDMAC_CC_SIF_AHB_IF1 |
00328 XDMAC_CC_DIF_AHB_IF0 |
00329 XDMAC_CC_SAM_FIXED_AM |
00330 XDMAC_CC_DAM_INCREMENTED_AM |
00331 XDMAC_CC_PERID(
00332 XDMAIF_Get_ChannelNumber(ID_USART, XDMAD_TRANSFER_RX)
00333 );
00334
00335 xdmadCfg.mbr_bc = 0;
00336 xdmadCfg.mbr_ds = 0;
00337 xdmadCfg.mbr_sus = 0;
00338 xdmadCfg.mbr_dus = 0;
00339 XDMAD_ConfigureTransfer(
00340 &dmad, usartDmaRxChannel, &xdmadCfg, 0, 0,
00341 XDMAC_CIE_BIE |
00342 XDMAC_CIE_DIE |
00343 XDMAC_CIE_FIE |
00344 XDMAC_CIE_RBIE |
00345 XDMAC_CIE_WBIE |
00346 XDMAC_CIE_ROIE);
00347 XDMAD_StartTransfer( &dmad, usartDmaRxChannel);
00348 }
00349
00350
00351
00352
00353
00354 static void _ConfigureDma( void )
00355 {
00356
00357 XDMAD_Initialize( &dmad, 0 );
00358
00359
00360 usartDmaTxChannel = XDMAD_AllocateChannel( &dmad, XDMAD_TRANSFER_MEMORY, ID_USART);
00361 usartDmaRxChannel = XDMAD_AllocateChannel( &dmad, ID_USART, XDMAD_TRANSFER_MEMORY);
00362 if ( usartDmaTxChannel == XDMAD_ALLOC_FAILED || usartDmaRxChannel == XDMAD_ALLOC_FAILED )
00363 {
00364 printf("XDMA channel allocat failed!\n\r");
00365 while(1);
00366 }
00367
00368
00369 XDMAD_SetCallback(&dmad, usartDmaRxChannel,(XdmadTransferCallback)_DmaRxCallback, 0);
00370
00371 XDMAD_SetCallback(&dmad, usartDmaTxChannel,(XdmadTransferCallback)_DmaTxCallback, 0);
00372 XDMAD_PrepareChannel( &dmad, usartDmaRxChannel );
00373 XDMAD_PrepareChannel( &dmad, usartDmaTxChannel);
00374
00375 }
00376
00377
00378
00379
00380 static void _DisplayMenu( void )
00381 {
00382 printf("Menu :\n\r");
00383 printf("------\n\r");
00384 printf(" - t: Transmit pattern to LON\n\r");
00385 printf(" - r: Receive data from LON \n\r");
00386 printf(" - m: Display menu \n\r");
00387 }
00388
00389
00390
00391
00392
00393 static void _DumpInfo( char *buf, uint32_t size )
00394 {
00395 uint32_t i = 0 ;
00396
00397 while ( (i < size) && (buf[i] != 0) )
00398 {
00399 printf( "%c", buf[i++] ) ;
00400 }
00401 }
00402
00403
00404
00405
00406
00407
00408
00409
00410
00411 extern int main( void )
00412 {
00413 uint8_t ucKey;
00414
00415
00416 WDT_Disable( WDT ) ;
00417
00418 SCB_EnableICache();
00419 SCB_EnableDCache();
00420
00421
00422 printf( "-- USART LON Example %s --\n\r", SOFTPACK_VERSION ) ;
00423 printf( "-- %s\n\r", BOARD_NAME ) ;
00424 printf( "-- Compiled: %s %s With %s--\n\r", __DATE__, __TIME__ , COMPILER_NAME) ;
00425
00426
00427 PIO_Configure( pins, PIO_LISTSIZE( pins ) ) ;
00428
00429 MATRIX->MATRIX_WPMR = MATRIX_WPMR_WPKEY_PASSWD;
00430 MATRIX->CCFG_SYSIO |= CCFG_SYSIO_SYSIO4;
00431
00432
00433 _DisplayMenu() ;
00434
00435
00436 _ConfigureDma();
00437
00438 Buffer[0] = sizeof(palette) - 1;
00439 Buffer[1] = US_LONL2HDR_BLI(2);
00440 memcpy(&Buffer[2], palette, sizeof(palette));
00441 SCB_CleanDCache();
00442
00443
00444 _ConfigureUsart();
00445
00446 NVIC_EnableIRQ(XDMAC_IRQn);
00447
00448 while ( 1 )
00449 {
00450 ucKey = DBG_GetChar() ;
00451 switch ( ucKey )
00452 {
00453 case 't': case 'T':
00454 {
00455 printf("-I- LON Transmitting ... \n\r");
00456 USART->US_CR = US_CR_RSTSTA;
00457 _DmaUsartTx();
00458 while(!transDone);
00459 printf("-I- LON Transmitting completed \n\r");
00460 transDone = 0;
00461 break;
00462 }
00463 case 'r': case 'R':
00464 {
00465 printf("-I- LON receiving ... \n\r");
00466
00467 SCB_CleanInvalidateDCache();
00468 USART->US_CR = US_CR_RSTSTA;
00469 recvDone = 0;
00470
00471 _DmaUsartRx();
00472 while(!recvDone);
00473
00474 _DumpInfo(pRecvBufferUSART, BUFFER_SIZE-1);
00475 printf("\n\r-I- LON Receiving completed \n\r");
00476 memset(pRecvBufferUSART, 0, sizeof(pRecvBufferUSART));
00477 break;
00478 }
00479 case 'm': case 'M':
00480 {
00481 _DisplayMenu() ;
00482 break;
00483 }
00484 }
00485 }
00486 }
00487
00488