Robin Hourahane / Mbed 2 deprecated Test_I2CEeprom

Test program for I2CEeprom library

Dependencies:   I2CEeprom mbed

This program does a number of write then read tests to ensure that the program can write and successfully read back buffers of various sizes. It also shows how to write and read arrays of POD classes.

main.cpp@0:64b9e47c0f13, 2015-08-16 (annotated)

Committer:
rhourahane
Date:
Sun Aug 16 18:56:28 2015 +0000
Revision:
0:64b9e47c0f13
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rhourahane 0:64b9e47c0f13 1 #include "mbed.h"
rhourahane 0:64b9e47c0f13 2 #include <I2CEeprom.h>
rhourahane 0:64b9e47c0f13 3
rhourahane 0:64b9e47c0f13 4 DigitalOut myled(LED1);
rhourahane 0:64b9e47c0f13 5
rhourahane 0:64b9e47c0f13 6 struct Info {
rhourahane 0:64b9e47c0f13 7 char name[32];
rhourahane 0:64b9e47c0f13 8 int age;
rhourahane 0:64b9e47c0f13 9 float score;
rhourahane 0:64b9e47c0f13 10 };
rhourahane 0:64b9e47c0f13 11
rhourahane 0:64b9e47c0f13 12 const char *convBool(bool value) { return value ? "true" : "false"; }
rhourahane 0:64b9e47c0f13 13
rhourahane 0:64b9e47c0f13 14 int main() {
rhourahane 0:64b9e47c0f13 15 I2CEeprom memory(I2C_SDA,I2C_SCL, 0xAE, 32, 0);
rhourahane 0:64b9e47c0f13 16 if (memory.write(1, 'Z') != 1) {
rhourahane 0:64b9e47c0f13 17 printf("Write failed\n\r");
rhourahane 0:64b9e47c0f13 18 }
rhourahane 0:64b9e47c0f13 19
rhourahane 0:64b9e47c0f13 20 char value;
rhourahane 0:64b9e47c0f13 21 if (memory.read(1, value) == 0) {
rhourahane 0:64b9e47c0f13 22 printf("Read failed\n\r");
rhourahane 0:64b9e47c0f13 23 } else {
rhourahane 0:64b9e47c0f13 24 printf("Value read [%c] valid %s\n\r", value, convBool(value == 'Z'));
rhourahane 0:64b9e47c0f13 25 }
rhourahane 0:64b9e47c0f13 26
rhourahane 0:64b9e47c0f13 27 const char *pat = "Abcdefghijklmnopqrstuvwxyz";
rhourahane 0:64b9e47c0f13 28 if (memory.write(50, pat, 27) != 27) {
rhourahane 0:64b9e47c0f13 29 printf("Write failed\n\r");
rhourahane 0:64b9e47c0f13 30 }
rhourahane 0:64b9e47c0f13 31
rhourahane 0:64b9e47c0f13 32 if (memory.read(50, value) != 1) {
rhourahane 0:64b9e47c0f13 33 printf("Read failed\n\r");
rhourahane 0:64b9e47c0f13 34 } else {
rhourahane 0:64b9e47c0f13 35 printf("First char read [%c]\n\r", value);
rhourahane 0:64b9e47c0f13 36
rhourahane 0:64b9e47c0f13 37 char buffer[28] = {'A', '\0' };
rhourahane 0:64b9e47c0f13 38 if (memory.read(50, buffer, 27) != 27) {
rhourahane 0:64b9e47c0f13 39 printf("Read failed\n\r");
rhourahane 0:64b9e47c0f13 40 } else {
rhourahane 0:64b9e47c0f13 41 printf("Value read [%s] valid %s\n\r", buffer, convBool(strcmp(buffer, pat) == 0));
rhourahane 0:64b9e47c0f13 42 }
rhourahane 0:64b9e47c0f13 43 }
rhourahane 0:64b9e47c0f13 44
rhourahane 0:64b9e47c0f13 45 memory.fill(0, 'A', 512);
rhourahane 0:64b9e47c0f13 46 char small[33];
rhourahane 0:64b9e47c0f13 47 if (memory.read(10, small, 32) != 32) {
rhourahane 0:64b9e47c0f13 48 printf("Read failed\n\r");
rhourahane 0:64b9e47c0f13 49 } else {
rhourahane 0:64b9e47c0f13 50 bool same = true;
rhourahane 0:64b9e47c0f13 51 for (int count = 0; count != 32; ++count) {
rhourahane 0:64b9e47c0f13 52 same &= small[count] == 'A';
rhourahane 0:64b9e47c0f13 53 }
rhourahane 0:64b9e47c0f13 54 printf("Value read [%.32s] valid %s\n\r", small, convBool(same));
rhourahane 0:64b9e47c0f13 55 }
rhourahane 0:64b9e47c0f13 56
rhourahane 0:64b9e47c0f13 57 const char *bigPat = "123456789A123456789B123456789C123456789D123456789E123456789F123456789G123456789H123456789a123456789b123456789c123456789d123456789e123456789f123456789g123456789h123456789A123456789B123456789C123456789D123456789E123456789F123456789G123456789H123456789a123456789b123456789c123456789d123456789e123456789f123456789g123456789h";
rhourahane 0:64b9e47c0f13 58 size_t patSize = strlen(bigPat) + 1;
rhourahane 0:64b9e47c0f13 59 if (!memory.write(42, bigPat, patSize)) {
rhourahane 0:64b9e47c0f13 60 printf("Write failed\n\r");
rhourahane 0:64b9e47c0f13 61 }
rhourahane 0:64b9e47c0f13 62
rhourahane 0:64b9e47c0f13 63 char bigBuffer[512] = {'A', '\0' };
rhourahane 0:64b9e47c0f13 64 if (memory.read(42, bigBuffer, patSize) != patSize) {
rhourahane 0:64b9e47c0f13 65 printf("Read failed\n\r");
rhourahane 0:64b9e47c0f13 66 } else {
rhourahane 0:64b9e47c0f13 67 printf("Value read [%s]\n\r", bigBuffer);
rhourahane 0:64b9e47c0f13 68 printf("Same is %s\n\r", convBool(strcmp(bigPat, bigBuffer) == 0));
rhourahane 0:64b9e47c0f13 69 }
rhourahane 0:64b9e47c0f13 70
rhourahane 0:64b9e47c0f13 71 int values[4] = { 1, 2, 3, 4};
rhourahane 0:64b9e47c0f13 72 if (memory.write(4, values) != sizeof(values)) {
rhourahane 0:64b9e47c0f13 73 printf("Write failed\n\r");
rhourahane 0:64b9e47c0f13 74 }
rhourahane 0:64b9e47c0f13 75
rhourahane 0:64b9e47c0f13 76 int newValues[4];
rhourahane 0:64b9e47c0f13 77 if (memory.read(4, newValues) != sizeof(values)) {
rhourahane 0:64b9e47c0f13 78 printf("Read failed\n\r");
rhourahane 0:64b9e47c0f13 79 }
rhourahane 0:64b9e47c0f13 80
rhourahane 0:64b9e47c0f13 81 for (int count = 0; count != 4; ++count) {
rhourahane 0:64b9e47c0f13 82 printf("Values[%d] = %d\n\r", count, newValues[count]);
rhourahane 0:64b9e47c0f13 83 }
rhourahane 0:64b9e47c0f13 84
rhourahane 0:64b9e47c0f13 85 Info foo[] = {
rhourahane 0:64b9e47c0f13 86 { "Bill", 18, 2.3 },
rhourahane 0:64b9e47c0f13 87 { "Bert", 21, 4.5 },
rhourahane 0:64b9e47c0f13 88 { "Mary", 19, 7.5 }
rhourahane 0:64b9e47c0f13 89 };
rhourahane 0:64b9e47c0f13 90
rhourahane 0:64b9e47c0f13 91 if (!memory.write(100, foo)) {
rhourahane 0:64b9e47c0f13 92 printf("Write failed\n\r");
rhourahane 0:64b9e47c0f13 93 }
rhourahane 0:64b9e47c0f13 94
rhourahane 0:64b9e47c0f13 95 Info bar[3];
rhourahane 0:64b9e47c0f13 96 if (!memory.read(100, bar)) {
rhourahane 0:64b9e47c0f13 97 printf("Read failed\n\r");
rhourahane 0:64b9e47c0f13 98 }
rhourahane 0:64b9e47c0f13 99 for (int count = 0; count != 3; ++count) {
rhourahane 0:64b9e47c0f13 100 printf("name %s, age %d, score %f\n\r", bar[count].name, bar[count].age, bar[count].score);
rhourahane 0:64b9e47c0f13 101 }
rhourahane 0:64b9e47c0f13 102
rhourahane 0:64b9e47c0f13 103 while(1) {
rhourahane 0:64b9e47c0f13 104 myled = 1;
rhourahane 0:64b9e47c0f13 105 wait(0.2);
rhourahane 0:64b9e47c0f13 106 myled = 0;
rhourahane 0:64b9e47c0f13 107 wait(0.2);
rhourahane 0:64b9e47c0f13 108 }
rhourahane 0:64b9e47c0f13 109 }