* I2C: Don't get stuck, if pullups are missing (timeout error)

[avrcpm.git] / avr / config.inc

diff --git a/avr/config.inc b/avr/config.inc
index cef445b9f635ad236c1cabd380ea4118b2d0de93..5917a0644de48e1fd6f599b9346b62e0f7673dfb 100644 (file)
--- a/avr/config.inc
+++ b/avr/config.inc
@@ -26,8 +26,8 @@
 #define VMINOR 1
 
 #ifndef DRAM_8BIT
-  #define DRAM_8BIT 1          /* 1 = 8bit wide DRAM */
-#endif
+  #define DRAM_8BIT 1          /* 1 = 8bit wide data bus to DRAM (ie two 4-bit Chips)*/
+#endif                         /* 0 = only one 4 bit wide DRAM chip */
 #ifndef F_CPU
   #define F_CPU  20000000      /* system clock in Hz; defaults to 20MHz */
 #endif
@@ -85,12 +85,6 @@
 #define DBG_TRACE_BOTTOM 0x01  /* Page boundaries for INS_DEBUG and PRINT_PC  */
 #define DBG_TRACE_TOP   0xdc   /* Trace is off, below bottom page and above top page. */
 
-#if EM_Z80
-  #define CPUSTR "Z80"
-#else
-  #define CPUSTR "8080"
-#endif
-
 ;-----------------------------------------------------------------------
 ; Port declarations
 
@@ -129,6 +123,7 @@
 .equ P_MMC_CS  = PORTB
 .equ P_A8      = PORTB
 .equ P_RXD     = PORTB
+.equ P_TXD     = PORTB
 
 ;Port C
 .equ RAM_RAS   = 0
@@ -300,6 +295,12 @@
 #define PORT7  0x87
 
 
+#if EM_Z80
+  #define CPUSTR "Z80"
+#else
+  #define CPUSTR "8080"
+#endif
+
 #if defined __ATmega8__
 .equ   RXTXDR0 = UDR
 .equ   UCSR0A  = UCSRA