Ricky Kwon / Mbed 2 deprecated SPItoEthernet_Master_Mbed

SPI to Ethernet Master

Dependencies:   WIZnetInterface mbed

Fork of SPI_HelloWorld_Mbed by mbed official

main.cpp@2:34bd7b8d30f9, 2015-03-27 (annotated)

Committer:
mbedAustin
Date:
Fri Mar 27 20:16:45 2015 +0000
Revision:
2:34bd7b8d30f9
Parent:
0:466ad3f38b6b
Child:
3:feec15e3bb27
Added license to main.c file.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 2:34bd7b8d30f9 1 /* mbed Example Program
mbedAustin 2:34bd7b8d30f9 2 * Copyright (c) 2006-2014 ARM Limited
mbedAustin 2:34bd7b8d30f9 3 *
mbedAustin 2:34bd7b8d30f9 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbedAustin 2:34bd7b8d30f9 5 * you may not use this file except in compliance with the License.
mbedAustin 2:34bd7b8d30f9 6 * You may obtain a copy of the License at
mbedAustin 2:34bd7b8d30f9 7 *
mbedAustin 2:34bd7b8d30f9 8 * http://www.apache.org/licenses/LICENSE-2.0
mbedAustin 2:34bd7b8d30f9 9 *
mbedAustin 2:34bd7b8d30f9 10 * Unless required by applicable law or agreed to in writing, software
mbedAustin 2:34bd7b8d30f9 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbedAustin 2:34bd7b8d30f9 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbedAustin 2:34bd7b8d30f9 13 * See the License for the specific language governing permissions and
mbedAustin 2:34bd7b8d30f9 14 * limitations under the License.
mbedAustin 2:34bd7b8d30f9 15 */
mbed_official 0:466ad3f38b6b 16 #include "mbed.h"
mbed_official 0:466ad3f38b6b 17
mbed_official 0:466ad3f38b6b 18 SPI spi(p5, p6, p7); // mosi, miso, sclk
mbed_official 0:466ad3f38b6b 19 DigitalOut cs(p8);
mbed_official 0:466ad3f38b6b 20
mbed_official 0:466ad3f38b6b 21 int main() {
mbed_official 0:466ad3f38b6b 22 // Chip must be deselected
mbed_official 0:466ad3f38b6b 23 cs = 1;
mbed_official 0:466ad3f38b6b 24
mbed_official 0:466ad3f38b6b 25 // Setup the spi for 8 bit data, high steady state clock,
mbed_official 0:466ad3f38b6b 26 // second edge capture, with a 1MHz clock rate
mbed_official 0:466ad3f38b6b 27 spi.format(8,3);
mbed_official 0:466ad3f38b6b 28 spi.frequency(1000000);
mbed_official 0:466ad3f38b6b 29
mbed_official 0:466ad3f38b6b 30 // Select the device by seting chip select low
mbed_official 0:466ad3f38b6b 31 cs = 0;
mbed_official 0:466ad3f38b6b 32
mbed_official 0:466ad3f38b6b 33 // Send 0x8f, the command to read the WHOAMI register
mbed_official 0:466ad3f38b6b 34 spi.write(0x8F);
mbed_official 0:466ad3f38b6b 35
mbed_official 0:466ad3f38b6b 36 // Send a dummy byte to receive the contents of the WHOAMI register
mbed_official 0:466ad3f38b6b 37 int whoami = spi.write(0x00);
mbed_official 0:466ad3f38b6b 38 printf("WHOAMI register = 0x%X\n", whoami);
mbed_official 0:466ad3f38b6b 39
mbed_official 0:466ad3f38b6b 40 // Deselect the device
mbed_official 0:466ad3f38b6b 41 cs = 1;
mbed_official 0:466ad3f38b6b 42 }