Commit e1aa93ffa72b92ec4eaf6ba40d85ac25c185daa8
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1ae11bd942
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= Fram sample code
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samplecode/fram/make.sh
| @@ -0,0 +1,14 @@ | @@ -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 |
samplecode/fram/read.c
| @@ -0,0 +1,57 @@ | @@ -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 | +} |
samplecode/fram/write.c
| @@ -0,0 +1,55 @@ | @@ -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 | +} |