yoshinari kou / Mbed 2 deprecated TEST_WW_SPI_CS

White Wizard SPI Chip Select test program. I changed chip select signal timing.

Dependencies:   mbed

wwChipSelect.cpp@1:048ae028f72d, 2011-07-25 (annotated)

Committer:
halfpitch
Date:
Mon Jul 25 10:01:36 2011 +0000
Revision:
1:048ae028f72d
Parent:
0:1d2148b42390
Child:
2:5312f16c3ee8
Rev.A

Who changed what in which revision?

UserRevisionLine numberNew contents of line
halfpitch 1:048ae028f72d 1 //Nest Egg Inc.
halfpitch 1:048ae028f72d 2 //http://wizard.nestegg.jp/
halfpitch 1:048ae028f72d 3 //White Wizard Board SPI Chip Select Code
halfpitch 1:048ae028f72d 4 //Auther : Yoshinari kou
halfpitch 1:048ae028f72d 5 //2010/10/03
halfpitch 1:048ae028f72d 6
halfpitch 1:048ae028f72d 7 #include "wwChipSelect.h"
halfpitch 1:048ae028f72d 8
halfpitch 1:048ae028f72d 9 wwChipSelect :: wwChipSelect(PinName cs):
halfpitch 1:048ae028f72d 10 ChipSelect(cs){
halfpitch 1:048ae028f72d 11 }
halfpitch 1:048ae028f72d 12
halfpitch 1:048ae028f72d 13 void wwChipSelect :: wwCSwrite(int ch){
halfpitch 1:048ae028f72d 14 //start
halfpitch 1:048ae028f72d 15 ChipSelect.write(1);
halfpitch 1:048ae028f72d 16 wait_us(20);
halfpitch 1:048ae028f72d 17
halfpitch 1:048ae028f72d 18 ChipSelect.write(0);
halfpitch 1:048ae028f72d 19
halfpitch 1:048ae028f72d 20 wait_us(26);//26
halfpitch 1:048ae028f72d 21
halfpitch 1:048ae028f72d 22 //A1
halfpitch 1:048ae028f72d 23 ChipSelect.write(0x01 & ch);
halfpitch 1:048ae028f72d 24 wait_us(20);//46
halfpitch 1:048ae028f72d 25
halfpitch 1:048ae028f72d 26 //A2
halfpitch 1:048ae028f72d 27 ChipSelect.write((0x02 & ch)>>1);
halfpitch 1:048ae028f72d 28 wait_us(20);//66
halfpitch 1:048ae028f72d 29
halfpitch 1:048ae028f72d 30 //A3
halfpitch 1:048ae028f72d 31 ChipSelect.write((0x04 & ch)>>2);
halfpitch 1:048ae028f72d 32 wait_us(20);//86
halfpitch 1:048ae028f72d 33
halfpitch 1:048ae028f72d 34 //A4
halfpitch 1:048ae028f72d 35 ChipSelect.write((0x08 & ch)>>3);
halfpitch 1:048ae028f72d 36 wait_us(20);//106
halfpitch 1:048ae028f72d 37
halfpitch 1:048ae028f72d 38 ChipSelect.write(1);
halfpitch 1:048ae028f72d 39
halfpitch 1:048ae028f72d 40 }
halfpitch 1:048ae028f72d 41
halfpitch 1:048ae028f72d 42