Devchannel Team / Mbed 2 deprecated SPIExample_Master

SPI Master used to test FPGA spi slave

Dependencies:   mbed

main.cpp@0:06683d7261a3, 2015-09-24 (annotated)

Committer:
leonardoaraujosantos
Date:
Thu Sep 24 07:03:02 2015 +0000
Revision:
0:06683d7261a3
Child:
1:f05471667f60
Working on Master

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leonardoaraujosantos 0:06683d7261a3 1 #include "mbed.h"
leonardoaraujosantos 0:06683d7261a3 2 // https://developer.mbed.org/media/uploads/robt/mbed_course_notes_-_serial_spi.pdf
leonardoaraujosantos 0:06683d7261a3 3 Serial serialIO(SERIAL_TX, SERIAL_RX);
leonardoaraujosantos 0:06683d7261a3 4 int main() {
leonardoaraujosantos 0:06683d7261a3 5
leonardoaraujosantos 0:06683d7261a3 6 // Configure the serial speed.
leonardoaraujosantos 0:06683d7261a3 7 serialIO.baud(115200);
leonardoaraujosantos 0:06683d7261a3 8 serialIO.printf("SPI Master example with mbed!\r\n");
leonardoaraujosantos 0:06683d7261a3 9
leonardoaraujosantos 0:06683d7261a3 10 // Configure the SPI to 8-bits Mode 0, 5Mhz
leonardoaraujosantos 0:06683d7261a3 11 // Create a SPI master
leonardoaraujosantos 0:06683d7261a3 12 SPI spiMaster(PA_7, PA_6, PA_5); // mosi, miso, sclk
leonardoaraujosantos 0:06683d7261a3 13 DigitalOut chipSelect(PB_6);
leonardoaraujosantos 0:06683d7261a3 14 spiMaster.format(8,0);
leonardoaraujosantos 0:06683d7261a3 15 spiMaster.frequency(5000000);
leonardoaraujosantos 0:06683d7261a3 16 chipSelect = 1;
leonardoaraujosantos 0:06683d7261a3 17 int mode = 0;
leonardoaraujosantos 0:06683d7261a3 18 int byteToSend = 0;
leonardoaraujosantos 0:06683d7261a3 19 int countPackages = 3;
leonardoaraujosantos 0:06683d7261a3 20
leonardoaraujosantos 0:06683d7261a3 21 while(1) {
leonardoaraujosantos 0:06683d7261a3 22 if ((!byteToSend) || (countPackages == 0))
leonardoaraujosantos 0:06683d7261a3 23 {
leonardoaraujosantos 0:06683d7261a3 24 serialIO.printf("Type the mode:\r\n");
leonardoaraujosantos 0:06683d7261a3 25 serialIO.scanf("%d",&mode);
leonardoaraujosantos 0:06683d7261a3 26 spiMaster.format(8,mode);
leonardoaraujosantos 0:06683d7261a3 27 serialIO.printf("Type the byte value to send, then press ENTER\r\n");
leonardoaraujosantos 0:06683d7261a3 28 serialIO.scanf("%d",&byteToSend);
leonardoaraujosantos 0:06683d7261a3 29 serialIO.printf("Number of times to send, then press ENTER\r\n");
leonardoaraujosantos 0:06683d7261a3 30 serialIO.scanf("%d",&countPackages);
leonardoaraujosantos 0:06683d7261a3 31 serialIO.printf("Sending %d packages on mode %d\r\n",countPackages,mode);
leonardoaraujosantos 0:06683d7261a3 32 }
leonardoaraujosantos 0:06683d7261a3 33 chipSelect = 0;
leonardoaraujosantos 0:06683d7261a3 34 int resp = spiMaster.write(byteToSend);
leonardoaraujosantos 0:06683d7261a3 35 chipSelect = 1;
leonardoaraujosantos 0:06683d7261a3 36 serialIO.printf("Sending data<%d> received<%d> %d times\r\n",byteToSend, resp, countPackages);
leonardoaraujosantos 0:06683d7261a3 37 wait_us(2);
leonardoaraujosantos 0:06683d7261a3 38 byteToSend++;
leonardoaraujosantos 0:06683d7261a3 39 countPackages--;
leonardoaraujosantos 0:06683d7261a3 40 }
leonardoaraujosantos 0:06683d7261a3 41 }
leonardoaraujosantos 0:06683d7261a3 42