Ilya Kazarin / Mbed 2 deprecated spi

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Dependencies:   mbed

main.cpp@0:69fc4661515e, 2019-03-25 (annotated)

Committer:
lucem1n
Date:
Mon Mar 25 12:13:12 2019 +0000
Revision:
0:69fc4661515e
gosha dinah)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lucem1n 0:69fc4661515e 1 #include "mbed.h"
lucem1n 0:69fc4661515e 2
lucem1n 0:69fc4661515e 3 SPI spi(D11, D12, D13);
lucem1n 0:69fc4661515e 4 DigitalOut cs(D9);
lucem1n 0:69fc4661515e 5 AnalogOut my_output(PA_4);
lucem1n 0:69fc4661515e 6 int SIZE;
lucem1n 0:69fc4661515e 7
lucem1n 0:69fc4661515e 8 int main() {
lucem1n 0:69fc4661515e 9 while(1)
lucem1n 0:69fc4661515e 10 {
lucem1n 0:69fc4661515e 11 // Chip must be deselected
lucem1n 0:69fc4661515e 12 cs = 1;
lucem1n 0:69fc4661515e 13
lucem1n 0:69fc4661515e 14 // Setup the spi for 8 bit data, high steady state clock,
lucem1n 0:69fc4661515e 15 // second edge capture, with a 1MHz clock rate
lucem1n 0:69fc4661515e 16 spi.format(8,0);
lucem1n 0:69fc4661515e 17 spi.frequency(1000000);
lucem1n 0:69fc4661515e 18
lucem1n 0:69fc4661515e 19 // Select the device by seting chip select low
lucem1n 0:69fc4661515e 20 cs = 0;
lucem1n 0:69fc4661515e 21
lucem1n 0:69fc4661515e 22 // Send 0x8f, the command to read the WHOAMI register
lucem1n 0:69fc4661515e 23 spi.write(0x03);
lucem1n 0:69fc4661515e 24 spi.write(0x00);
lucem1n 0:69fc4661515e 25 spi.write(0x00);
lucem1n 0:69fc4661515e 26 spi.write(0x00);
lucem1n 0:69fc4661515e 27
lucem1n 0:69fc4661515e 28 // Send a dummy byte to receive the contents of the WHOAMI register
lucem1n 0:69fc4661515e 29 SIZE = 600000;
lucem1n 0:69fc4661515e 30 for(int i=0; i<SIZE; i++)
lucem1n 0:69fc4661515e 31 {
lucem1n 0:69fc4661515e 32 uint16_t sample = spi.write(0x01);
lucem1n 0:69fc4661515e 33 // my_output.write_u16(sample);
lucem1n 0:69fc4661515e 34 //wait_us(125);
lucem1n 0:69fc4661515e 35 }
lucem1n 0:69fc4661515e 36 // Deselect the device
lucem1n 0:69fc4661515e 37 cs = 1;
lucem1n 0:69fc4661515e 38 }
lucem1n 0:69fc4661515e 39 }