Sog Yang / Mbed OS mbed_SPIS_multiByte_example_SOG

Sog update version

Dependencies:   NNN50_WIFI_API

Fork of mbed_SPIS_multiByte_example by Tsungta Wu

main.cpp@4:8e796b751cd3, 2017-06-01 (annotated)

Committer:
tsungta
Date:
Thu Jun 01 07:59:21 2017 +0000
Revision:
4:8e796b751cd3
Parent:
2:c520d7c7739d
Child:
5:6a1155885fc9
This version support maximum of receiving 16 bytes in single CS cycle

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tsungta 4:8e796b751cd3 1 //#include "mbed.h"
tsungta 4:8e796b751cd3 2 //
tsungta 4:8e796b751cd3 3 //SPI spi(A1, A2, A3); // mosi, miso, sclk
tsungta 4:8e796b751cd3 4 //DigitalOut cs(A0);
tsungta 4:8e796b751cd3 5 //
tsungta 4:8e796b751cd3 6 //uint8_t tx_buf[32] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V'};
tsungta 4:8e796b751cd3 7 //
tsungta 4:8e796b751cd3 8 //int main() {
tsungta 4:8e796b751cd3 9 // // Chip must be deselected
tsungta 4:8e796b751cd3 10 // cs = 1;
tsungta 4:8e796b751cd3 11 //
tsungta 4:8e796b751cd3 12 // // Setup the spi for 8 bit data, high steady state clock,
tsungta 4:8e796b751cd3 13 // // second edge capture, with a 1MHz clock rate
tsungta 4:8e796b751cd3 14 // spi.format(8,1);
tsungta 4:8e796b751cd3 15 // spi.frequency(8000000);
tsungta 4:8e796b751cd3 16 //
tsungta 4:8e796b751cd3 17 // // Select the device by seting chip select low
tsungta 4:8e796b751cd3 18 // cs = 0;
tsungta 4:8e796b751cd3 19 //
tsungta 4:8e796b751cd3 20 // for(int i=0; i<32; i++)
tsungta 4:8e796b751cd3 21 // spi.write(tx_buf[i]);
tsungta 4:8e796b751cd3 22 // printf("End of transmission \r\n");
tsungta 4:8e796b751cd3 23 //
tsungta 4:8e796b751cd3 24 // // Deselect the device
tsungta 4:8e796b751cd3 25 // cs = 1;
tsungta 4:8e796b751cd3 26 //}
tsungta 4:8e796b751cd3 27
tsungta 0:b7415ae44dac 28 #include "mbed.h"
tsungta 0:b7415ae44dac 29
tsungta 0:b7415ae44dac 30 #include "SPISlave_multiByte.h"
tsungta 0:b7415ae44dac 31 SPISlave_multiByte device(A1, A2, A3, p3); // mosi, miso, sclk, ssel
tsungta 0:b7415ae44dac 32 Serial uart(USBTX, USBRX);
tsungta 0:b7415ae44dac 33
tsungta 4:8e796b751cd3 34 #define TXRX_LENGTH 16 //max is 16
tsungta 0:b7415ae44dac 35 int main() {
tsungta 0:b7415ae44dac 36 uart.printf("START!");
tsungta 1:58f0712d9aa2 37 device.format(8,1);
tsungta 4:8e796b751cd3 38 device.frequency(8000000);
tsungta 2:c520d7c7739d 39
tsungta 4:8e796b751cd3 40 device.reply((uint8_t*)"xyz", TXRX_LENGTH);
tsungta 0:b7415ae44dac 41 while(1) {
tsungta 4:8e796b751cd3 42 if(device.receive(TXRX_LENGTH)) {
tsungta 4:8e796b751cd3 43 int ret = device.read(); // Read byte from master
tsungta 4:8e796b751cd3 44 uart.printf("ret = %s ", ret);
tsungta 1:58f0712d9aa2 45
tsungta 0:b7415ae44dac 46 }
tsungta 0:b7415ae44dac 47 }
tsungta 0:b7415ae44dac 48 }