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authorGregory Nutt <gnutt@nuttx.org>2013-06-22 08:55:16 -0600
committerGregory Nutt <gnutt@nuttx.org>2013-06-22 08:55:16 -0600
commit87a0eb4f83e6c782616c5dd475164eb62b0c49de (patch)
treea6b1aeefb4f3d9650584e47ff6c9a9d7fc1545e8 /nuttx/drivers/net
parent8072c2fddb647267fb7ce351aa5a03db5b6d9061 (diff)
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Fix for ENC28J60 from Dave
Diffstat (limited to 'nuttx/drivers/net')
-rw-r--r--nuttx/drivers/net/enc28j60.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/nuttx/drivers/net/enc28j60.c b/nuttx/drivers/net/enc28j60.c
index 203259aeb..6b4408f12 100644
--- a/nuttx/drivers/net/enc28j60.c
+++ b/nuttx/drivers/net/enc28j60.c
@@ -156,10 +156,17 @@
#define ALIGNED_BUFSIZE ((CONFIG_NET_BUFSIZE + 255) & ~255)
-#define PKTMEM_TX_START 0x0000 /* Start TX buffer at 0 */
-#define PKTMEM_TX_ENDP1 ALIGNED_BUFSIZE /* Allow TX buffer for one frame */
-#define PKTMEM_RX_START PKTMEM_TX_ENDP1 /* Followed by RX buffer */
-#define PKTMEM_RX_END PKTMEM_END /* RX buffer goes to the end of SRAM */
+#if 0 /* Fix for Errata #5 */
+# define PKTMEM_TX_START 0x0000 /* Start TX buffer at 0 */
+# define PKTMEM_TX_ENDP1 ALIGNED_BUFSIZE /* Allow TX buffer for one frame */
+# define PKTMEM_RX_START PKTMEM_TX_ENDP1 /* Followed by RX buffer */
+# define PKTMEM_RX_END PKTMEM_END /* RX buffer goes to the end of SRAM */
+#else
+# define PKTMEM_RX_START 0x0000
+# define PKTMEM_RX_END (PKTMEM_END-ALIGNED_BUFSIZE)
+# define PKTMEM_TX_START (PKTMEM_RX_END+1)
+# define PKTMEM_TX_ENDP1 (PKTMEM_TX_START+ALIGNED_BUFSIZE)
+#endif
/* Misc. Helper Macros ******************************************************/