Changeset 34 in XOpenSparcT1

Timestamp:

04/08/11 11:08:37 (14 years ago)

Author:

pntsvt00

Message:

versione pre-pre-alpha

Location:

trunk

Files:

• sim/simula.do (modified) (1 diff)
• sw/uart.c (modified) (3 diffs)

trunk/sim/simula.do

@@ -49 +49 @@
 #vsim -c -t ps -novopt +notimingchecks work.tb_top glbl
 
-add wave sim:/tb_top/W1_inst/dram_wb_inst/*
+#add wave sim:/tb_top/W1_inst/dram_wb_inst/*
 #exit
-pause
+#pause
 onerror {resume}
 #Log all the objects in design. These will appear in .wlf file#
 log -r /*
+run -all
+exit
+
 #View sim_tb_top signals in waveform#
-add wave sim:/tb_top/*
+#add wave sim:/tb_top/*
 
 #Change radix to Hexadecimal#

trunk/sw/uart.c

@@ -3 +3 @@
 const long UART_BASE_ADR[1] = {0x800000FFF0C2C000};
 const int UART_BAUDS[1] = {0};
+const int BAUD_RATE =100000;
 const int IN_CLK =50000000;
 
@@ -59 +60 @@
         long allone=0xffffffffffffffff;
         int divisor;
-        float float_divisor;
+        //float float_divisor;
         /* Reset receiver and transmiter */
         REG8( UART_FCR ) = UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT | UART_FCR_TRIGGER_14;
@@ -73 +74 @@
         
         /* Set baud rate */
-        float_divisor = (float) IN_CLK/(16 * UART_BAUDS[core]);
-        float_divisor += 0.50f; // Ensure round up
-        divisor = (int) float_divisor;
-        
+        //float_divisor = (float) IN_CLK/(16 * UART_BAUDS[core]);
+        //float_divisor += 0.50f; // Ensure round up
+        //divisor = (int) float_divisor;
+        divisor = BAUD_RATE;
+
         REG8(UART_BASE_ADR[core] + UART_LCR) |= UART_LCR_DLAB;
         REG8(UART_BASE_ADR[core] + UART_DLL) = divisor & 0x000000ff;