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LED cube examples modified for fubarino.

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This commit is contained in:
Sergey
2015-06-06 23:43:26 -07:00
parent 5f4ecde705
commit 48de8a19bb
5 changed files with 167 additions and 5 deletions
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7
share/examples/cube/Makefile
View File

@@ -1,5 +1,10 @@
PROG = all backlight cube demo
OBJS = gpio.o
# Duinomite board
#OBJS = duinomite.o
# Fubarino board
OBJS = fubarino.o
all: $(PROG)

4
share/examples/cube/Makefile-host
View File

@@ -6,8 +6,8 @@ LIBS += -lm
#all: demo
demo: demo.o gpio.o
${CC} ${LDFLAGS} -o demo.elf demo.o gpio.o ${LIBS}
demo: demo.o fubarino.o
${CC} ${LDFLAGS} -o demo.elf demo.o fubarino.o ${LIBS}
${OBJDUMP} -S demo.elf > demo.dis
${SIZE} demo.elf
${ELF2AOUT} demo.elf $@

16
share/examples/cube/gpio.c → share/examples/cube/duinomite.c
View File

@@ -112,7 +112,7 @@ void gpio_plane(unsigned char *data)
int i, n, val;
/* Send 8 bytes of tada to shift registers. */
for (i=0; i<8; i++) {
for (i=0; i<8; i+=2) {
val = *data++;
for (n=0; n<8; n++) {
/* SDI signal at RE5. */
@@ -127,5 +127,19 @@ void gpio_plane(unsigned char *data)
val <<= 1;
}
val = *data++;
for (n=0; n<8; n++) {
/* SDI signal at RE5. */
if (val & 1)
ioctl(gpio, GPIO_PORTE | GPIO_SET, 1 << 5);
else
ioctl(gpio, GPIO_PORTE | GPIO_CLEAR, 1 << 5);
/* CLK signal at RE6. */
ioctl(gpio, GPIO_PORTE | GPIO_SET, 1 << 6);
ioctl(gpio, GPIO_PORTE | GPIO_CLEAR, 1 << 6);
val >>= 1;
}
}
}

143
share/examples/cube/fubarino.c Normal file
View File

@@ -0,0 +1,143 @@
/*
* Interface to LED cube 8x8x8.
* The cube is connected to pins 4-13 of Fubarino board.
*
* Pin PIC32 Function
* ---------------
* 4 RD0 Y0 \
* 5 RC13 Y1 | Layer select
* 6 RC14 Y2 /
* 7 RD1 Y3 - Upper backlignt
* 8 RD2 Y4 - Lower backlight
* 9 RD3 SDI - Serial data \
* 10 RD4 CLK - Clock | to shift registers
* 11 RD5 /LE - Latch enable |
* 12 RD6 /OE - Output enable /
* 13 RD7 EXT - Unknown
*/
#include <stdlib.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/gpio.h>
#include "cube.h"
static int gpio;
void gpio_init()
{
char *devname = "/dev/porta";
/* Open GPIO driver. */
gpio = open(devname, 1);
if (gpio < 0) {
perror(devname);
exit(-1);
}
/* Configure pins RD0-RD7, RC13 and RC14 as output. */
ioctl(gpio, GPIO_PORTD | GPIO_CONFOUT, 0xff);
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 0xff);
ioctl(gpio, GPIO_PORTC | GPIO_CONFOUT, 3 << 13);
ioctl(gpio, GPIO_PORTC | GPIO_CLEAR, 3 << 13);
}
void gpio_ext(int on)
{
/* EXT signal at RD7. */
if (on)
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 7);
else
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 7);
}
void gpio_oe(int active)
{
/* /OE signal at RD6, active low. */
if (active)
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 6);
else
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 6);
}
void gpio_le(int active)
{
/* /LE signal at RD5, active low. */
if (active)
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 5);
else
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 5);
}
void gpio_backlight_upper(int on)
{
/* Y4 signal at RD2. */
if (on)
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 2);
else
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 2);
}
void gpio_backlight_lower(int on)
{
/* Y3 signal at RD1. */
if (on)
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 1);
else
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 1);
}
void gpio_layer(int z)
{
/* Y0-Y2 signals at RD0, RC13, RC14. */
if (z & 1)
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 0);
else
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 0);
if (z & 2)
ioctl(gpio, GPIO_PORTC | GPIO_CLEAR, 1 << 13);
else
ioctl(gpio, GPIO_PORTC | GPIO_SET, 1 << 13);
if (z & 4)
ioctl(gpio, GPIO_PORTC | GPIO_CLEAR, 1 << 14);
else
ioctl(gpio, GPIO_PORTC | GPIO_SET, 1 << 14);
}
void gpio_plane(unsigned char *data)
{
int i, n, val;
/* Send 8 bytes of tada to shift registers. */
for (i=0; i<8; i+=2) {
val = *data++;
for (n=0; n<8; n++) {
/* SDI signal at RD3. */
if (val & 0x80)
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 3);
else
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 3);
/* CLK signal at RD4. */
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 4);
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 4);
val <<= 1;
}
val = *data++;
for (n=0; n<8; n++) {
/* SDI signal at RD3. */
if (val & 1)
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 3);
else
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 3);
/* CLK signal at RD4. */
ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 4);
ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 4);
val >>= 1;
}
}
}

2
tools/fsutil/fsutil.c
View File

@@ -825,7 +825,7 @@ int main (int argc, char **argv)
return -1;
}
if (! fs_open (&fs, argv[i], (add + mount != 0), pindex)) {
fprintf (stderr, "%s: cannot open\n", argv[i]);
fprintf (stderr, "%s: cannot open filesystem\n", argv[i]);
return -1;
}