Helmut Tschemernjak / Mbed OS Nucleo-mbed-os-example-blinky

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Fork of Nucleo-mbed-os-example-blinky by Helmut Tschemernjak

main.cpp@6:a40d570cbe50, 2017-01-29 (annotated)

Committer:
Helmut64
Date:
Sun Jan 29 10:18:53 2017 +0000
Revision:
6:a40d570cbe50
Parent:
5:7db87ff5ed38 
Added HAL SPI testing.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Helmut64 0:681c27ac21c0 1 #include "mbed.h"
Helmut64 0:681c27ac21c0 2
Helmut64 4:634ee710cadb 3 DigitalOut myled(LED1);
Helmut64 4:634ee710cadb 4 InterruptIn event(USER_BUTTON);
Helmut64 4:634ee710cadb 5
Helmut64 6:a40d570cbe50 6 event_callback_t spiCb;
Helmut64 6:a40d570cbe50 7
Helmut64 6:a40d570cbe50 8 #if DEVICE_SPI_ASYNCH
Helmut64 6:a40d570cbe50 9 #define SPI_S(obj) (( struct spi_s *)(&(obj->spi)))
Helmut64 6:a40d570cbe50 10 #else
Helmut64 6:a40d570cbe50 11 #define SPI_S(obj) (( struct spi_s *)(obj))
Helmut64 6:a40d570cbe50 12 #endif
Helmut64 6:a40d570cbe50 13
Helmut64 4:634ee710cadb 14 bool pressed = false;
Helmut64 6:a40d570cbe50 15 bool transferDone = false;
Helmut64 3:a6caeb32839c 16
Helmut64 4:634ee710cadb 17 void KeyPressed()
Helmut64 4:634ee710cadb 18 {
Helmut64 4:634ee710cadb 19 pressed = true;
Helmut64 4:634ee710cadb 20 }
Helmut64 0:681c27ac21c0 21
Helmut64 6:a40d570cbe50 22 void SPIDone(int events)
Helmut64 6:a40d570cbe50 23 {
Helmut64 6:a40d570cbe50 24 transferDone = true;
Helmut64 6:a40d570cbe50 25 }
Helmut64 6:a40d570cbe50 26
Helmut64 4:634ee710cadb 27 int main() {
Helmut64 4:634ee710cadb 28 event.fall(&KeyPressed);
Helmut64 6:a40d570cbe50 29
Helmut64 6:a40d570cbe50 30 spiCb.attach(SPIDone);
Helmut64 6:a40d570cbe50 31
Helmut64 4:634ee710cadb 32 while(1) {
Helmut64 4:634ee710cadb 33 myled = 1; // LED is ON
Helmut64 4:634ee710cadb 34 wait(0.2); // 200 ms
Helmut64 4:634ee710cadb 35 myled = 0; // LED is OFF
Helmut64 4:634ee710cadb 36 wait(1.0); // 1 sec
Helmut64 4:634ee710cadb 37 if (pressed) {
Helmut64 6:a40d570cbe50 38 myled = 1;
Helmut64 6:a40d570cbe50 39 SPI *s = new SPI(PB_5, PB_4, PB_3);
Helmut64 6:a40d570cbe50 40 s->frequency(100000);
Helmut64 6:a40d570cbe50 41
Helmut64 6:a40d570cbe50 42 struct spi_s *spiobj = SPI_S(((spi_t *)( (char *)s+4) ));
Helmut64 6:a40d570cbe50 43 SPI_HandleTypeDef *handle = &(spiobj->handle);
Helmut64 6:a40d570cbe50 44
Helmut64 6:a40d570cbe50 45
Helmut64 6:a40d570cbe50 46 for(int i = 0; i < 400000000; i++) {
Helmut64 6:a40d570cbe50 47 uint8_t send[] = { 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x00 };
Helmut64 6:a40d570cbe50 48 uint8_t rcv[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
Helmut64 6:a40d570cbe50 49 //s->write(0xff);
Helmut64 6:a40d570cbe50 50 HAL_SPI_Transmit(handle, send, 10, 10);
Helmut64 6:a40d570cbe50 51 //HAL_SPI_Receive(handle, rcv, 10, 10);
Helmut64 6:a40d570cbe50 52
Helmut64 6:a40d570cbe50 53 }
Helmut64 6:a40d570cbe50 54 //s->transfer((uint8_t*)"aaa", 3, (uint8_t*)NULL, 0, spiCb, SPI_EVENT_COMPLETE);
Helmut64 6:a40d570cbe50 55 // s->transfer((uint8_t*)"aaa", 3, (uint8_t*)NULL, 0, spiCb);
Helmut64 5:7db87ff5ed38 56 delete s;
Helmut64 4:634ee710cadb 57 deepsleep();
Helmut64 4:634ee710cadb 58 pressed = false;
Helmut64 4:634ee710cadb 59 }
Helmut64 0:681c27ac21c0 60 }
Helmut64 6:a40d570cbe50 61 }