Robin Hourahane
Test program for I2CEeprom library
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.
Revision 0:64b9e47c0f13, committed 2015-08-16
- Comitter:
- rhourahane
- Date:
- Sun Aug 16 18:56:28 2015 +0000
- Commit message:
- Initial commit
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/I2CEeprom.lib Sun Aug 16 18:56:28 2015 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/rhourahane/code/I2CEeprom/#b23f5561266c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Aug 16 18:56:28 2015 +0000
@@ -0,0 +1,109 @@
+#include "mbed.h"
+#include <I2CEeprom.h>
+
+DigitalOut myled(LED1);
+
+struct Info {
+ char name[32];
+ int age;
+ float score;
+};
+
+const char *convBool(bool value) { return value ? "true" : "false"; }
+
+int main() {
+ I2CEeprom memory(I2C_SDA,I2C_SCL, 0xAE, 32, 0);
+ if (memory.write(1, 'Z') != 1) {
+ printf("Write failed\n\r");
+ }
+
+ char value;
+ if (memory.read(1, value) == 0) {
+ printf("Read failed\n\r");
+ } else {
+ printf("Value read [%c] valid %s\n\r", value, convBool(value == 'Z'));
+ }
+
+ const char *pat = "Abcdefghijklmnopqrstuvwxyz";
+ if (memory.write(50, pat, 27) != 27) {
+ printf("Write failed\n\r");
+ }
+
+ if (memory.read(50, value) != 1) {
+ printf("Read failed\n\r");
+ } else {
+ printf("First char read [%c]\n\r", value);
+
+ char buffer[28] = {'A', '\0' };
+ if (memory.read(50, buffer, 27) != 27) {
+ printf("Read failed\n\r");
+ } else {
+ printf("Value read [%s] valid %s\n\r", buffer, convBool(strcmp(buffer, pat) == 0));
+ }
+ }
+
+ memory.fill(0, 'A', 512);
+ char small[33];
+ if (memory.read(10, small, 32) != 32) {
+ printf("Read failed\n\r");
+ } else {
+ bool same = true;
+ for (int count = 0; count != 32; ++count) {
+ same &= small[count] == 'A';
+ }
+ printf("Value read [%.32s] valid %s\n\r", small, convBool(same));
+ }
+
+ const char *bigPat = "123456789A123456789B123456789C123456789D123456789E123456789F123456789G123456789H123456789a123456789b123456789c123456789d123456789e123456789f123456789g123456789h123456789A123456789B123456789C123456789D123456789E123456789F123456789G123456789H123456789a123456789b123456789c123456789d123456789e123456789f123456789g123456789h";
+ size_t patSize = strlen(bigPat) + 1;
+ if (!memory.write(42, bigPat, patSize)) {
+ printf("Write failed\n\r");
+ }
+
+ char bigBuffer[512] = {'A', '\0' };
+ if (memory.read(42, bigBuffer, patSize) != patSize) {
+ printf("Read failed\n\r");
+ } else {
+ printf("Value read [%s]\n\r", bigBuffer);
+ printf("Same is %s\n\r", convBool(strcmp(bigPat, bigBuffer) == 0));
+ }
+
+ int values[4] = { 1, 2, 3, 4};
+ if (memory.write(4, values) != sizeof(values)) {
+ printf("Write failed\n\r");
+ }
+
+ int newValues[4];
+ if (memory.read(4, newValues) != sizeof(values)) {
+ printf("Read failed\n\r");
+ }
+
+ for (int count = 0; count != 4; ++count) {
+ printf("Values[%d] = %d\n\r", count, newValues[count]);
+ }
+
+ Info foo[] = {
+ { "Bill", 18, 2.3 },
+ { "Bert", 21, 4.5 },
+ { "Mary", 19, 7.5 }
+ };
+
+ if (!memory.write(100, foo)) {
+ printf("Write failed\n\r");
+ }
+
+ Info bar[3];
+ if (!memory.read(100, bar)) {
+ printf("Read failed\n\r");
+ }
+ for (int count = 0; count != 3; ++count) {
+ printf("name %s, age %d, score %f\n\r", bar[count].name, bar[count].age, bar[count].score);
+ }
+
+ while(1) {
+ myled = 1;
+ wait(0.2);
+ myled = 0;
+ wait(0.2);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Aug 16 18:56:28 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/7cff1c4259d7 \ No newline at end of file