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Updating examples to Board changes, adding irq driver demo

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This commit is contained in:
Carlos Camargo
2010-06-11 08:06:13 -05:00
parent c8b70e5307
commit 5041c0eb60
41 changed files with 2263 additions and 145 deletions
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7
Examples/sram/logic/sram_bus.ucf
View File

@@ -1,6 +1,7 @@
NET clk LOC = "P38";
NET reset LOC = "P71";
NET led LOC = "P44";
NET clk LOC = "P38";
NET reset LOC = "P30";
NET led LOC = "P44";
NET irq_pin LOC = "P71";
#ADDRESS BUS
NET "addr<12>" LOC = "P90";

7
Examples/sram/logic/sram_bus.v
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@@ -1,11 +1,12 @@
`timescale 1ns / 1ps
module sram_bus(clk, sram_data, addr, nwe, ncs, noe, reset, led);
module sram_bus(clk, sram_data, addr, nwe, ncs, noe, reset, led, irq_pin);
parameter B = (7);
input clk, nwe, ncs, noe, reset;
input [12:0] addr;
inout [B:0] sram_data;
output led;
input irq_pin;
// synchronize signals
reg sncs, snwe;
@@ -39,7 +40,7 @@ module sram_bus(clk, sram_data, addr, nwe, ncs, noe, reset, led);
// write access cpu to bram
always @(posedge clk)
if(reset) {w_st, we, wdBus} <= 0;
if(~reset) {w_st, we, wdBus} <= 0;
else begin
wdBus <= buffer_data;
case (w_st)
@@ -71,7 +72,7 @@ RAMB16_S2 ba3( .CLK(~clk), .EN(1'b1), .SSR(1'b0), .ADDR(buffer_addr),
reg [24:0] counter;
always @(posedge clk) begin
if (reset)
if (~reset)
counter <= {25{1'b0}};
else
counter <= counter + 1;

7
Examples/sram/src/Makefile
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@@ -1,6 +1,6 @@
CC = mipsel-openwrt-linux-gcc
all: jz_init_sram jz_test_gpio enable_rx
all: jz_init_sram jz_test_gpio enable_rx enable_irq
DEBUG = -O3 -g0
@@ -29,6 +29,9 @@ jz_test_gpio: $(COMMON_OBJECTS)
enable_rx: $(COMMON_OBJECTS)
$(CC) $(LDFLAGS) $(COMMON_OBJECTS) enable_rx.c -o enable_rx
enable_irq: $(COMMON_OBJECTS)
$(CC) $(LDFLAGS) $(COMMON_OBJECTS) enable_irq.c -o enable_irq
.c.o:
$(CC) -c $(CCFLAGS) $< -o $@
@@ -36,7 +39,7 @@ upload: jz_init_sram jz_test_gpio
scp jz_test_gpio jz_init_sram root@$(NANO_IP):
clean:
rm -f *.o jz_init_sram jz_test_gpio enable_rx ${EXEC} *~
rm -f *.o jz_init_sram jz_test_gpio enable_rx ${EXEC} *~ enable_irq
indent:
indent -bad -bap -nbc -bl -nce -i2 --no-tabs --line-length120 $(COMMON_SOURCES) $(H_SOURCES)

8
Examples/sram/src/jz47xx_gpio.c
View File

@@ -43,6 +43,14 @@ jz_gpio_as_input (JZ_PIO * pio, unsigned int o)
pio->PXDIRC = (1 << (o));
}
void
jz_gpio_as_irq (JZ_PIO * pio, unsigned int o)
{
pio->PXFUNC = (1 << (o));
pio->PXSELS = (1 << (o));
pio->PXDIRC = (1 << (o));
}
void
jz_gpio_set_pin (JZ_PIO * pio, unsigned int o)
{