Mac Lobdell
Very simple example application for using AT45 SPI Flash
Revision 0:cb29c01320b1, committed 2017-11-14
- Comitter:
- maclobdell
- Date:
- Tue Nov 14 14:58:48 2017 +0000
- Commit message:
- Very simple example application that extracts details from AT45 SPI Flash and writes/reads a string to it.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/AT45.lib Tue Nov 14 14:58:48 2017 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/maclobdell/code/AT45/#f8e562ae5cc3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Nov 14 14:58:48 2017 +0000
@@ -0,0 +1,44 @@
+#include "mbed.h"
+
+#include "AT45.h"
+
+/* Tested on FRDM-KW24D512 */
+
+SPI spi(D11, D12, D13);
+AT45 spif(&spi, D10);
+
+DigitalOut myled(LED1);
+
+int main() {
+
+ printf("spif test\n\r");
+
+ printf("spif size: %d bytes\n\r", spif.device_size());
+ printf("spif page erase size: %d bytes\n\r", spif.pagesize());
+ printf("spif pages: %d\n\r", spif.pages());
+ printf("spif block erase size: 4096 bytes\n\r");
+ printf("spif blocks: %d\n\r", spif.blocks());
+ printf("id: %d\n\r", spif.id());
+
+ int pagesize = spif.pagesize();
+
+ // Write "Hello World!" to a block
+ char *buffer = (char*) malloc(pagesize);
+ sprintf(buffer, "Hello World!\n");
+ spif.page_erase(3);
+ spif.write_page(buffer, 3);
+
+ char *buffer2 = (char*) malloc(pagesize);
+ // Read back what was stored
+ spif.read_page(buffer2, 3);
+
+ printf("%s", buffer2);
+
+ while(1) {
+ myled = 1;
+ wait(0.2);
+ myled = 0;
+ wait(0.2);
+
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Tue Nov 14 14:58:48 2017 +0000 @@ -0,0 +1,1 @@ +https://github.com/armmbed/mbed-os/#78474a5129e18e136cc7e872adbaa5b74fbb8f6a