Gorazd Kovacic / Mbed OS AT45_spi_flash_example

ported for ff-lpc546xx

Dependencies:   AT45

/media/uploads/gorazdko/capture111.png

main.cpp@1:1f267b9c975a, 2019-05-27 (annotated)

Committer:
gorazdko
Date:
Mon May 27 11:06:33 2019 +0000
Revision:
1:1f267b9c975a
Parent:
0:cb29c01320b1 
port for l-tek lpc546xx

Who changed what in which revision?

UserRevisionLine numberNew contents of line
maclobdell 0:cb29c01320b1 1 #include "mbed.h"
maclobdell 0:cb29c01320b1 2
maclobdell 0:cb29c01320b1 3 #include "AT45.h"
maclobdell 0:cb29c01320b1 4
gorazdko 1:1f267b9c975a 5 /* Tested on L-Tek FF_LPC546xx */
maclobdell 0:cb29c01320b1 6
gorazdko 1:1f267b9c975a 7 #define PIN_MOSI P0_8
gorazdko 1:1f267b9c975a 8 #define PIN_MISO P0_9
gorazdko 1:1f267b9c975a 9 #define PIN_SCK P0_6
gorazdko 1:1f267b9c975a 10 #define PIN_CS P0_7
gorazdko 1:1f267b9c975a 11
gorazdko 1:1f267b9c975a 12
gorazdko 1:1f267b9c975a 13 DigitalOut led1(LED1);
gorazdko 1:1f267b9c975a 14
gorazdko 1:1f267b9c975a 15 SPI spi(PIN_MOSI, PIN_MISO, PIN_SCK); // mosi, miso, sclk
gorazdko 1:1f267b9c975a 16 AT45 spif(&spi, PIN_CS);
maclobdell 0:cb29c01320b1 17
maclobdell 0:cb29c01320b1 18 DigitalOut myled(LED1);
maclobdell 0:cb29c01320b1 19
maclobdell 0:cb29c01320b1 20 int main() {
maclobdell 0:cb29c01320b1 21
maclobdell 0:cb29c01320b1 22 printf("spif test\n\r");
gorazdko 1:1f267b9c975a 23
gorazdko 1:1f267b9c975a 24
gorazdko 1:1f267b9c975a 25 printf("id: %d\n\r", spif.id());
maclobdell 0:cb29c01320b1 26
maclobdell 0:cb29c01320b1 27 printf("spif size: %d bytes\n\r", spif.device_size());
maclobdell 0:cb29c01320b1 28 printf("spif page erase size: %d bytes\n\r", spif.pagesize());
maclobdell 0:cb29c01320b1 29 printf("spif pages: %d\n\r", spif.pages());
maclobdell 0:cb29c01320b1 30 printf("spif block erase size: 4096 bytes\n\r");
maclobdell 0:cb29c01320b1 31 printf("spif blocks: %d\n\r", spif.blocks());
maclobdell 0:cb29c01320b1 32 printf("id: %d\n\r", spif.id());
maclobdell 0:cb29c01320b1 33
maclobdell 0:cb29c01320b1 34 int pagesize = spif.pagesize();
maclobdell 0:cb29c01320b1 35
maclobdell 0:cb29c01320b1 36 // Write "Hello World!" to a block
maclobdell 0:cb29c01320b1 37 char *buffer = (char*) malloc(pagesize);
maclobdell 0:cb29c01320b1 38 sprintf(buffer, "Hello World!\n");
maclobdell 0:cb29c01320b1 39 spif.page_erase(3);
maclobdell 0:cb29c01320b1 40 spif.write_page(buffer, 3);
maclobdell 0:cb29c01320b1 41
maclobdell 0:cb29c01320b1 42 char *buffer2 = (char*) malloc(pagesize);
maclobdell 0:cb29c01320b1 43 // Read back what was stored
maclobdell 0:cb29c01320b1 44 spif.read_page(buffer2, 3);
maclobdell 0:cb29c01320b1 45
maclobdell 0:cb29c01320b1 46 printf("%s", buffer2);
maclobdell 0:cb29c01320b1 47
maclobdell 0:cb29c01320b1 48 while(1) {
maclobdell 0:cb29c01320b1 49 myled = 1;
maclobdell 0:cb29c01320b1 50 wait(0.2);
maclobdell 0:cb29c01320b1 51 myled = 0;
maclobdell 0:cb29c01320b1 52 wait(0.2);
maclobdell 0:cb29c01320b1 53
maclobdell 0:cb29c01320b1 54 }
maclobdell 0:cb29c01320b1 55 }