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@5:6a1155885fc9, 2017-06-13 (annotated)

Committer:
sog_yang
Date:
Tue Jun 13 04:34:01 2017 +0000
Revision:
5:6a1155885fc9
Parent:
4:8e796b751cd3
Child:
6:bce37a45b9cb
Sog update version.

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"
sog_yang 5:6a1155885fc9 29 #include "SPISlave_multiByte.h"
tsungta 0:b7415ae44dac 30
sog_yang 5:6a1155885fc9 31 //SPISlave_multiByte device(A1, A2, A3, p3); // mosi, miso, sclk, ssel
sog_yang 5:6a1155885fc9 32 SPISlave_multiByte device(p15, p9, p11, p29); // mosi, miso, sclk, ssel
tsungta 0:b7415ae44dac 33 Serial uart(USBTX, USBRX);
sog_yang 5:6a1155885fc9 34 DigitalOut myled(LED1);
tsungta 0:b7415ae44dac 35
sog_yang 5:6a1155885fc9 36
sog_yang 5:6a1155885fc9 37 inline void hexview(const char *buffer, unsigned int size) {
sog_yang 5:6a1155885fc9 38 char byte[50];
sog_yang 5:6a1155885fc9 39 char text[20];
sog_yang 5:6a1155885fc9 40 bool big = false;
sog_yang 5:6a1155885fc9 41 int i;
sog_yang 5:6a1155885fc9 42 for(i = 0; i < size; ++i) {
sog_yang 5:6a1155885fc9 43 if((i&0xF) == 0x0) {
sog_yang 5:6a1155885fc9 44 if(big)
sog_yang 5:6a1155885fc9 45 printf("%04X: %-49s: %-20s\n", (i&~0xF), byte, text);
sog_yang 5:6a1155885fc9 46 big = false;
sog_yang 5:6a1155885fc9 47 byte[0] = '\0';
sog_yang 5:6a1155885fc9 48 text[0] = '\0';
sog_yang 5:6a1155885fc9 49 } else if((i&0xF) == 0x8) {
sog_yang 5:6a1155885fc9 50 big = true;
sog_yang 5:6a1155885fc9 51 byte[(i&0xF) * 3] = ' ';
sog_yang 5:6a1155885fc9 52 text[(i&0xF)] = ' ';
sog_yang 5:6a1155885fc9 53 }
sog_yang 5:6a1155885fc9 54 unsigned char value = buffer[i];
sog_yang 5:6a1155885fc9 55 text[(i&0xF) + 0 + big] = (value < 0x20 || value > 0x7F)? '.': value;
sog_yang 5:6a1155885fc9 56 text[(i&0xF) + 1 + big] = '\0';
sog_yang 5:6a1155885fc9 57 value = (buffer[i] &0xF0) >> 4;
sog_yang 5:6a1155885fc9 58 byte[(i&0xF) * 3 + 0 + big] = (value < 0xA)? (value + 0x30): (value + 0x37);
sog_yang 5:6a1155885fc9 59 value = (buffer[i] &0x0F);
sog_yang 5:6a1155885fc9 60 byte[(i&0xF) * 3 + 1 + big] = (value < 0xA)? (value + 0x30): (value + 0x37);
sog_yang 5:6a1155885fc9 61 byte[(i&0xF) * 3 + 2 + big] = ' ';
sog_yang 5:6a1155885fc9 62 byte[(i&0xF) * 3 + 3 + big] = '\0';
sog_yang 5:6a1155885fc9 63 }
sog_yang 5:6a1155885fc9 64 if(byte[0]) {
sog_yang 5:6a1155885fc9 65 uart.printf("%04X: %-49s: %-20s\n", (i&~0xF), byte, text);
sog_yang 5:6a1155885fc9 66 }
sog_yang 5:6a1155885fc9 67 uart.printf("\n");
sog_yang 5:6a1155885fc9 68 }
sog_yang 5:6a1155885fc9 69
tsungta 0:b7415ae44dac 70 int main() {
tsungta 0:b7415ae44dac 71 uart.printf("START!");
sog_yang 5:6a1155885fc9 72 device.format(8,0);
sog_yang 5:6a1155885fc9 73 myled = 1;
tsungta 2:c520d7c7739d 74
tsungta 0:b7415ae44dac 75 while(1) {
sog_yang 5:6a1155885fc9 76
sog_yang 5:6a1155885fc9 77 uart.printf("Add: %p \r\n", device.read());
sog_yang 5:6a1155885fc9 78 uart.printf("%c \r\n", device.read());
sog_yang 5:6a1155885fc9 79
sog_yang 5:6a1155885fc9 80 while (!device.readable()) {
sog_yang 5:6a1155885fc9 81 __WFE();
sog_yang 5:6a1155885fc9 82 }
sog_yang 5:6a1155885fc9 83 hexview((const char *)0x200032D0, 224);
sog_yang 5:6a1155885fc9 84 //hexview((const char *)ptr, 224);
sog_yang 5:6a1155885fc9 85 //uart.printf("%c\r\n",m_rx_buf[3]);
sog_yang 5:6a1155885fc9 86
sog_yang 5:6a1155885fc9 87 myled = !myled;
sog_yang 5:6a1155885fc9 88 wait_ms(200);
tsungta 0:b7415ae44dac 89 }
tsungta 0:b7415ae44dac 90 }