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Corrected the Rx frame length mask when obtaining the length from the rx descriptor.

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This commit is contained in:
Richard Barry 2006-07-25 19:44:40 +00:00
parent 17617c5451
commit df9b2abe91
2 changed files with 19 additions and 2 deletions
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11
Demo/uIP_Demo_IAR_ARM7/EMAC/SAM7_EMAC.c
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@ -57,6 +57,12 @@ Changes from V3.2.4
+ Also read the EMAC_RSR register in the EMAC ISR as a work around the
the EMAC bug that can reset the RX bit in EMAC_ISR register before the
bit has been read.
Changes from V4.0.4
+ Corrected the Rx frame length mask when obtaining the length from the
rx descriptor.
*/
/* Standard includes. */
@ -105,6 +111,9 @@ one not be immediately available when trying to transmit a frame. */
#define emacRESET_KEY ( ( unsigned portLONG ) 0xA5000000 )
#define emacRESET_LENGTH ( ( unsigned portLONG ) ( 0x01 << 8 ) )
/* The Atmel header file only defines the TX frame length mask. */
#define emacRX_LENGTH_FRAME ( 0xfff )
/*-----------------------------------------------------------*/
/*
@ -344,7 +353,7 @@ portCHAR *pcSource;
while( ( xRxDescriptors[ ulNextRxBuffer ].addr & AT91C_OWNERSHIP_BIT ) && !ulSectionLength )
{
pcSource = ( portCHAR * )( xRxDescriptors[ ulNextRxBuffer ].addr & emacADDRESS_MASK );
ulSectionLength = xRxDescriptors[ ulNextRxBuffer ].U_Status.status & AT91C_LENGTH_FRAME;
ulSectionLength = xRxDescriptors[ ulNextRxBuffer ].U_Status.status & emacRX_LENGTH_FRAME;
if( ulSectionLength == 0 )
{