yoshinari kou / Mbed 2 deprecated WW_SPI_Uni_TEST_Ver2

White Wizard Board SPI module chip select TEST program

Dependencies:   mbed

wwChipSelect.cpp@0:747306a9d2ad, 2011-08-26 (annotated)

Committer:
halfpitch
Date:
Fri Aug 26 15:34:03 2011 +0000
Revision:
0:747306a9d2ad
RevA

Who changed what in which revision?

UserRevisionLine numberNew contents of line
halfpitch 0:747306a9d2ad 1 //Nest Egg Inc.
halfpitch 0:747306a9d2ad 2 //http://nestegg.jp/
halfpitch 0:747306a9d2ad 3 //White Wizard Board SPI Chip Select Code
halfpitch 0:747306a9d2ad 4 //Auther : Yoshinari kou
halfpitch 0:747306a9d2ad 5 //2010/10/03
halfpitch 0:747306a9d2ad 6
halfpitch 0:747306a9d2ad 7 #include "wwChipSelect.h"
halfpitch 0:747306a9d2ad 8 //#define NORMAL //if you want to use normal chipselect, you should enable this code.
halfpitch 0:747306a9d2ad 9
halfpitch 0:747306a9d2ad 10 wwChipSelect :: wwChipSelect(PinName cs):
halfpitch 0:747306a9d2ad 11 ChipSelect(cs){
halfpitch 0:747306a9d2ad 12 }
halfpitch 0:747306a9d2ad 13
halfpitch 0:747306a9d2ad 14 void wwChipSelect :: wwCSwrite(int ch){
halfpitch 0:747306a9d2ad 15
halfpitch 0:747306a9d2ad 16 #ifdef NORMAL
halfpitch 0:747306a9d2ad 17 if(ch == 0){//reset code
halfpitch 0:747306a9d2ad 18 ChipSelect.write(1);
halfpitch 0:747306a9d2ad 19 }else{
halfpitch 0:747306a9d2ad 20 ChipSelect.write(0);
halfpitch 0:747306a9d2ad 21 }
halfpitch 0:747306a9d2ad 22
halfpitch 0:747306a9d2ad 23 #else
halfpitch 0:747306a9d2ad 24 //start
halfpitch 0:747306a9d2ad 25 ChipSelect.write(1);
halfpitch 0:747306a9d2ad 26 wait_us(20);
halfpitch 0:747306a9d2ad 27
halfpitch 0:747306a9d2ad 28 ChipSelect.write(0);
halfpitch 0:747306a9d2ad 29
halfpitch 0:747306a9d2ad 30 wait_us(26);//26
halfpitch 0:747306a9d2ad 31
halfpitch 0:747306a9d2ad 32 //A1
halfpitch 0:747306a9d2ad 33 ChipSelect.write(0x01 & ch);
halfpitch 0:747306a9d2ad 34 wait_us(20);//46
halfpitch 0:747306a9d2ad 35
halfpitch 0:747306a9d2ad 36 //A2
halfpitch 0:747306a9d2ad 37 ChipSelect.write((0x02 & ch)>>1);
halfpitch 0:747306a9d2ad 38 wait_us(20);//66
halfpitch 0:747306a9d2ad 39
halfpitch 0:747306a9d2ad 40 //A3
halfpitch 0:747306a9d2ad 41 ChipSelect.write((0x04 & ch)>>2);
halfpitch 0:747306a9d2ad 42 wait_us(20);//86
halfpitch 0:747306a9d2ad 43
halfpitch 0:747306a9d2ad 44 //A4
halfpitch 0:747306a9d2ad 45 ChipSelect.write((0x08 & ch)>>3);
halfpitch 0:747306a9d2ad 46 wait_us(20);//106
halfpitch 0:747306a9d2ad 47
halfpitch 0:747306a9d2ad 48 ChipSelect.write(1);
halfpitch 0:747306a9d2ad 49 #endif
halfpitch 0:747306a9d2ad 50 }
halfpitch 0:747306a9d2ad 51