woodstock . / Mbed 2 deprecated Nucleo_Ex03_PSPAD

This example demonstrates the reading of the PlayStation controller in the Nucleo.

Dependencies:   mbed

Intro

This example demonstrates the reading of the PlayStation controller in the Nucleo.

Parts

STM32 Nucleo F446RE
Connector for the PS controller
LED 2pcs
Register 100k ohm
Register 470 ohm 2pcs
Breadboard
Wires

Wiring diagram

/media/uploads/beaglescout007/nucleo_ex03_pspad.png This circuit diagram was created by fritzing.

PS con.Nucleo
1MISO PC_11 PullUp
2MOSI PC_12
3-
4GND
53.3v 3v3
6CS PD_2
7SCK PC_10
8-
9-

/media/uploads/beaglescout007/pad_conector.jpg

https://youtu.be/Ff4FVxsXCE0

main.cpp@0:871415d77569, 2016-03-12 (annotated)

Committer:
beaglescout007
Date:
Sat Mar 12 10:09:49 2016 +0000
Revision:
0:871415d77569
Release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
beaglescout007 0:871415d77569 1 #include "mbed.h"
beaglescout007 0:871415d77569 2
beaglescout007 0:871415d77569 3 // SPI interface
beaglescout007 0:871415d77569 4 SPI pad_spi(PC_12, PC_11, PC_10); // MOSI(should pullup), MISO, SCK
beaglescout007 0:871415d77569 5 DigitalOut pad_cs(PD_2);
beaglescout007 0:871415d77569 6
beaglescout007 0:871415d77569 7 // LED
beaglescout007 0:871415d77569 8 DigitalOut red(PB_5);
beaglescout007 0:871415d77569 9 DigitalOut yellow(PA_10);
beaglescout007 0:871415d77569 10
beaglescout007 0:871415d77569 11 // PS pad initialize
beaglescout007 0:871415d77569 12 void pspad_init()
beaglescout007 0:871415d77569 13 {
beaglescout007 0:871415d77569 14 pad_spi.format(8, 3);
beaglescout007 0:871415d77569 15 pad_spi.frequency(250000);
beaglescout007 0:871415d77569 16 }
beaglescout007 0:871415d77569 17
beaglescout007 0:871415d77569 18 // Read PS Pad state
beaglescout007 0:871415d77569 19 // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
beaglescout007 0:871415d77569 20 // SE -- -- ST U R D L L2 R2 L1 R1 TR O X SQ
beaglescout007 0:871415d77569 21 void pspad_read(unsigned short *pad)
beaglescout007 0:871415d77569 22 {
beaglescout007 0:871415d77569 23 pad_cs = 0;
beaglescout007 0:871415d77569 24 wait_us(500);
beaglescout007 0:871415d77569 25
beaglescout007 0:871415d77569 26 pad_spi.write(0x80);
beaglescout007 0:871415d77569 27 pad_spi.write(0x42);
beaglescout007 0:871415d77569 28 pad_spi.write(0);
beaglescout007 0:871415d77569 29 pad_spi.write(0);
beaglescout007 0:871415d77569 30 int d1 = pad_spi.write(0);
beaglescout007 0:871415d77569 31 int d2 = pad_spi.write(0);
beaglescout007 0:871415d77569 32
beaglescout007 0:871415d77569 33 pad_cs = 1;
beaglescout007 0:871415d77569 34
beaglescout007 0:871415d77569 35 *pad = (char)~d1 << 8 | (char)~d2;
beaglescout007 0:871415d77569 36 }
beaglescout007 0:871415d77569 37
beaglescout007 0:871415d77569 38 int main()
beaglescout007 0:871415d77569 39 {
beaglescout007 0:871415d77569 40 pspad_init();
beaglescout007 0:871415d77569 41
beaglescout007 0:871415d77569 42 unsigned short pad;
beaglescout007 0:871415d77569 43
beaglescout007 0:871415d77569 44 while(1)
beaglescout007 0:871415d77569 45 {
beaglescout007 0:871415d77569 46 pspad_read(&pad);
beaglescout007 0:871415d77569 47
beaglescout007 0:871415d77569 48 // Circle button
beaglescout007 0:871415d77569 49 yellow = pad & 4;
beaglescout007 0:871415d77569 50
beaglescout007 0:871415d77569 51 // X button
beaglescout007 0:871415d77569 52 red = pad & 2;
beaglescout007 0:871415d77569 53
beaglescout007 0:871415d77569 54 wait_ms(16);
beaglescout007 0:871415d77569 55 }
beaglescout007 0:871415d77569 56 }