= Fram sample code

larche
1 parent 1ae11bd942
Showing 3 changed files with 126 additions and 0 deletions Show diff stats
samplecode/fram/make.sh
samplecode/fram/read.c
samplecode/fram/write.c
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+if [ -z "${FA_PRODUCT}" ]
+then
+    echo ""
+    echo "Check environment variables..."
+    echo "  $> source ../../env-4.9.4.env"
+    echo ""
+    exit 1
+fi
+
+${CROSS_COMPILE}gcc -o write write.c
+
+${CROSS_COMPILE}gcc -o read write.c
@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <ftw.h>
+#include <string.h>
+
+#define READ_SIZE		512
+#define READ_BUF_LEN	2048
+#define DEV_NAME	"/sys/bus/spi/devices/spi0.0/fram"
+
+int main(int argc, char ** argv)
+{
+	char read_buffer[READ_SIZE]={0,};
+	char *device = NULL;
+	int i,j,k;
+	unsigned int fd;
+	unsigned int size;
+
+	device = argv[1];
+
+	if(argc < 3)
+		device = DEV_NAME;
+
+
+	fd = open (device, O_RDWR);
+	if(fd < 0)
+	{
+		fputs("Error \n",stderr);
+		exit(1);
+	}
+
+	printf("       0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F");
+
+
+	for(i=0, k=0; i<4; i++)
+	{
+		size = read(fd, read_buffer, READ_SIZE);
+
+		for(j=0; j<READ_SIZE; j++)
+		{
+			if( !(k%16) )
+				printf("\n %03X: ",k&(~0x1));
+
+			k++;
+			printf("%02X ",read_buffer[j]);
+		}
+		printf("\n=====================================================\n");
+		printf("ReadSize: %d\n",size);
+	}
+
+	close(fd);
+
+	return 0;
+}
@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <ftw.h>
+#include <string.h>
+
+#define READ_BUF_LEN	2048
+#define WRITE_BUF_LEN	2048
+#define DEV_NAME	"/sys/bus/spi/devices/spi0.0/fram"
+
+int main(int argc, char ** argv)
+{
+	char *device = NULL;
+	unsigned char *write_buffer;
+	int i,j;
+	unsigned int fd;
+	unsigned int size;
+
+	device = argv[1];
+
+	if(argc < 2)
+		device = DEV_NAME;
+
+
+	fd = open (device, O_RDWR);
+	if(fd < 0)
+	{
+		fputs("Error \n",stderr);
+		exit(1);
+	}
+
+	write_buffer = (unsigned char *)malloc( sizeof(unsigned char)*WRITE_BUF_LEN );
+	memset(write_buffer, 0x0, WRITE_BUF_LEN);
+
+	j=0;
+	for(i=0;i<2048;i++)
+	{
+		write_buffer[i] = 0xff;
+
+		if((i%0x10) == 0)
+			write_buffer[i] = j++;
+	}
+
+	size = write(fd, write_buffer, WRITE_BUF_LEN);
+	printf("size(%d)\n",size);
+
+	free(write_buffer);
+	close(fd);
+
+
+	return 0;
+}
...	...	@@ -0,0 +1,14 @@
	1	+#!/bin/bash
	2	+
	3	+if [ -z "${FA_PRODUCT}" ]
	4	+then
	5	+ echo ""
	6	+ echo "Check environment variables..."
	7	+ echo " $> source ../../env-4.9.4.env"
	8	+ echo ""
	9	+ exit 1
	10	+fi
	11	+
	12	+${CROSS_COMPILE}gcc -o write write.c
	13	+
	14	+${CROSS_COMPILE}gcc -o read write.c
...	...
...	...	@@ -0,0 +1,57 @@
	1	+#include <stdio.h>
	2	+#include <stdlib.h>
	3	+#include <unistd.h>
	4	+#include <errno.h>
	5	+#include <signal.h>
	6	+#include <fcntl.h>
	7	+#include <ftw.h>
	8	+#include <string.h>
	9	+
	10	+#define READ_SIZE 512
	11	+#define READ_BUF_LEN 2048
	12	+#define DEV_NAME "/sys/bus/spi/devices/spi0.0/fram"
	13	+
	14	+int main(int argc, char ** argv)
	15	+{
	16	+ char read_buffer[READ_SIZE]={0,};
	17	+ char *device = NULL;
	18	+ int i,j,k;
	19	+ unsigned int fd;
	20	+ unsigned int size;
	21	+
	22	+ device = argv[1];
	23	+
	24	+ if(argc < 3)
	25	+ device = DEV_NAME;
	26	+
	27	+
	28	+ fd = open (device, O_RDWR);
	29	+ if(fd < 0)
	30	+ {
	31	+ fputs("Error \n",stderr);
	32	+ exit(1);
	33	+ }
	34	+
	35	+ printf(" 0 1 2 3 4 5 6 7 8 9 A B C D E F");
	36	+
	37	+
	38	+ for(i=0, k=0; i<4; i++)
	39	+ {
	40	+ size = read(fd, read_buffer, READ_SIZE);
	41	+
	42	+ for(j=0; j<READ_SIZE; j++)
	43	+ {
	44	+ if( !(k%16) )
	45	+ printf("\n %03X: ",k&(~0x1));
	46	+
	47	+ k++;
	48	+ printf("%02X ",read_buffer[j]);
	49	+ }
	50	+ printf("\n=====================================================\n");
	51	+ printf("ReadSize: %d\n",size);
	52	+ }
	53	+
	54	+ close(fd);
	55	+
	56	+ return 0;
	57	+}
...	...
...	...	@@ -0,0 +1,55 @@
	1	+#include <stdio.h>
	2	+#include <stdlib.h>
	3	+#include <unistd.h>
	4	+#include <errno.h>
	5	+#include <signal.h>
	6	+#include <fcntl.h>
	7	+#include <ftw.h>
	8	+#include <string.h>
	9	+
	10	+#define READ_BUF_LEN 2048
	11	+#define WRITE_BUF_LEN 2048
	12	+#define DEV_NAME "/sys/bus/spi/devices/spi0.0/fram"
	13	+
	14	+int main(int argc, char ** argv)
	15	+{
	16	+ char *device = NULL;
	17	+ unsigned char *write_buffer;
	18	+ int i,j;
	19	+ unsigned int fd;
	20	+ unsigned int size;
	21	+
	22	+ device = argv[1];
	23	+
	24	+ if(argc < 2)
	25	+ device = DEV_NAME;
	26	+
	27	+
	28	+ fd = open (device, O_RDWR);
	29	+ if(fd < 0)
	30	+ {
	31	+ fputs("Error \n",stderr);
	32	+ exit(1);
	33	+ }
	34	+
	35	+ write_buffer = (unsigned char )malloc( sizeof(unsigned char)WRITE_BUF_LEN );
	36	+ memset(write_buffer, 0x0, WRITE_BUF_LEN);
	37	+
	38	+ j=0;
	39	+ for(i=0;i<2048;i++)
	40	+ {
	41	+ write_buffer[i] = 0xff;
	42	+
	43	+ if((i%0x10) == 0)
	44	+ write_buffer[i] = j++;
	45	+ }
	46	+
	47	+ size = write(fd, write_buffer, WRITE_BUF_LEN);
	48	+ printf("size(%d)\n",size);
	49	+
	50	+ free(write_buffer);
	51	+ close(fd);
	52	+
	53	+
	54	+ return 0;
	55	+}
...	...