Takehisa Oneta / Mbed 2 deprecated Hello-FM25W256

FM25W256, it was write protect first. 初期状態ではライトプロテクトがかかっていることに対応。 "The WREN command must be issued prior to any write operation." from FM25W256 datasheet.

Dependencies:   FM25W256 mbed

Fork of Hello-FM25W256 by Toyomasa Watarai

main.cpp@1:be908b1aafe6, 2016-03-04 (annotated)

Committer:
MACRUM
Date:
Fri Mar 04 15:50:11 2016 +0000
Revision:
1:be908b1aafe6
Parent:
0:3efb18460968
Child:
2:980e3d46d20e
Use FM25W256 class library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MACRUM 0:3efb18460968 1 #include "mbed.h"
MACRUM 1:be908b1aafe6 2 #include "FM25W256.h"
MACRUM 0:3efb18460968 3
MACRUM 0:3efb18460968 4 Serial pc(USBTX, USBRX);
MACRUM 1:be908b1aafe6 5 FM25W256 f_ram(dp2, dp1, dp6, dp18);
MACRUM 0:3efb18460968 6
MACRUM 0:3efb18460968 7 void read_test()
MACRUM 0:3efb18460968 8 {
MACRUM 0:3efb18460968 9 uint16_t adrs = 0;
MACRUM 0:3efb18460968 10 for(int i=0; i<16; i++) {
MACRUM 0:3efb18460968 11 pc.printf("0x%04X : ", i * 16);
MACRUM 0:3efb18460968 12 for(int j=0; j<16; j++) {
MACRUM 1:be908b1aafe6 13 pc.printf("%02X ", f_ram.read(adrs++));
MACRUM 0:3efb18460968 14 }
MACRUM 0:3efb18460968 15 pc.printf("\n");
MACRUM 0:3efb18460968 16 }
MACRUM 0:3efb18460968 17 }
MACRUM 0:3efb18460968 18
MACRUM 0:3efb18460968 19 void write_test()
MACRUM 0:3efb18460968 20 {
MACRUM 1:be908b1aafe6 21 uint8_t buf[16];
MACRUM 1:be908b1aafe6 22 for(int i=0; i<16; i++) {
MACRUM 1:be908b1aafe6 23 buf[i] = (15 - i);
MACRUM 0:3efb18460968 24 }
MACRUM 1:be908b1aafe6 25 f_ram.write(0, buf, 16);
MACRUM 0:3efb18460968 26 }
MACRUM 0:3efb18460968 27
MACRUM 0:3efb18460968 28 int main()
MACRUM 0:3efb18460968 29 {
MACRUM 0:3efb18460968 30 pc.printf("\nFM25W256 test program - write test? (y/n) ");
MACRUM 0:3efb18460968 31 if (pc.getc() == 'y') {
MACRUM 0:3efb18460968 32 write_test();
MACRUM 0:3efb18460968 33 }
MACRUM 0:3efb18460968 34
MACRUM 0:3efb18460968 35 pc.printf("\nFM25W256 test program - read test? (y/n) ");
MACRUM 0:3efb18460968 36 if (pc.getc() == 'y') {
MACRUM 0:3efb18460968 37 pc.printf("\n");
MACRUM 0:3efb18460968 38 read_test();
MACRUM 0:3efb18460968 39 }
MACRUM 0:3efb18460968 40
MACRUM 0:3efb18460968 41 while(1) {
MACRUM 0:3efb18460968 42 }
MACRUM 0:3efb18460968 43 }