Ryo Od / Mbed 2 deprecated Nucleo_MCP23S17_Test

MCP23S17 Test

Dependencies:   MCP23S17 mbed mbed-rtos

main.cpp@2:c8c30a78bbb3, 2016-10-28 (annotated)

Committer:
ryood
Date:
Fri Oct 28 06:57:55 2016 +0000
Revision:
2:c8c30a78bbb3
Parent:
1:5321e8f5b339
Child:
3:42a3ae578926
Change: mbed:rev.121 mbed-rtos:rev.117

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ryood 0:5610193796b3 1 /*
ryood 0:5610193796b3 2 * MCP23S17 Test
ryood 0:5610193796b3 3 *
ryood 0:5610193796b3 4 * https://developer.mbed.org/users/romilly/code/MCP23S17/
ryood 0:5610193796b3 5 *
ryood 2:c8c30a78bbb3 6 * mbed: rev 121
ryood 2:c8c30a78bbb3 7 * mbed-rtos: rev 117
ryood 2:c8c30a78bbb3 8 *
ryood 0:5610193796b3 9 * Created: 2016.10.28
ryood 0:5610193796b3 10 *
ryood 0:5610193796b3 11 */
ryood 0:5610193796b3 12
ryood 0:5610193796b3 13 #include "mbed.h"
ryood 1:5321e8f5b339 14 #include "rtos.h"
ryood 0:5610193796b3 15 #include "MCP23S17.h"
ryood 0:5610193796b3 16
ryood 0:5610193796b3 17 #define OPCODE (0x40)
ryood 0:5610193796b3 18
ryood 2:c8c30a78bbb3 19 SPI Spi(PC_12, PC_11, PC_10); // SPI3: mosi, miso, sclk
ryood 2:c8c30a78bbb3 20 //SPI Spi(PA_7, PA_6, PA_5); // SPI1: mosi, miso, sclk
ryood 0:5610193796b3 21
ryood 0:5610193796b3 22 // MCP23S17(SPI& spi, PinName ncs, char writeOpcode);
ryood 1:5321e8f5b339 23 MCP23S17 Mcp23s17(Spi, PD_2, OPCODE);
ryood 0:5610193796b3 24
ryood 0:5610193796b3 25 int main()
ryood 0:5610193796b3 26 {
ryood 0:5610193796b3 27 printf("\r\n\n*** MCP23S17 Test ***\r\n");
ryood 0:5610193796b3 28
ryood 0:5610193796b3 29 // PORTA output
ryood 0:5610193796b3 30 Mcp23s17.direction(PORT_A, 0x00);
ryood 0:5610193796b3 31
ryood 0:5610193796b3 32 // PORTB input
ryood 0:5610193796b3 33 Mcp23s17.direction(PORT_B, 0xFF);
ryood 0:5610193796b3 34 // PORTB pull-up
ryood 0:5610193796b3 35 Mcp23s17.configurePullUps(PORT_B, 0xFF);
ryood 0:5610193796b3 36
ryood 0:5610193796b3 37 // LED Check
ryood 0:5610193796b3 38 for (int i = 0; i < 8; i++) {
ryood 0:5610193796b3 39 Mcp23s17.write(PORT_A, (1 << i));
ryood 0:5610193796b3 40 wait(0.2);
ryood 0:5610193796b3 41 }
ryood 0:5610193796b3 42 Mcp23s17.write(PORT_A, 0x00);
ryood 2:c8c30a78bbb3 43
ryood 0:5610193796b3 44 while (true) {
ryood 0:5610193796b3 45 char data = ~Mcp23s17.read(PORT_B);
ryood 0:5610193796b3 46 Mcp23s17.write(PORT_A, data);
ryood 0:5610193796b3 47
ryood 1:5321e8f5b339 48 //printf("%02x\r\n", data);
ryood 0:5610193796b3 49 }
ryood 0:5610193796b3 50 }
ryood 0:5610193796b3 51