Code fonctionnel pour le chenillard de led du phare GE1
Dependencies: mbed LedStripGradient PololuLedStrip
main.cpp
- Committer:
- DavidEGrayson
- Date:
- 2013-02-26
- Revision:
- 7:242f14ed9055
- Parent:
- 6:59f1db26a9ff
- Child:
- 8:a179aad4fa2e
File content as of revision 7:242f14ed9055:
#include "mbed.h" #include "gpio_api.h" namespace Pololu { #ifndef _POLOLU_RGB_COLOR #define _POLOLU_RGB_COLOR typedef struct rgb_color { uint8_t red, green, blue; } rgb_color; #endif extern "C" int led_strip_write_color(rgb_color *, volatile uint32_t * set, volatile uint32_t * clear, uint32_t mask); class PololuLedStrip { static bool interruptFriendly; public: gpio_t gpio; PololuLedStrip(PinName pin); void write(rgb_color * colors, unsigned int count); }; bool PololuLedStrip::interruptFriendly; PololuLedStrip::PololuLedStrip(PinName pinName) { gpio_init(&gpio, pinName, PIN_OUTPUT); } void PololuLedStrip::write(rgb_color * colors, unsigned int count) { uint32_t pinValue = gpio.pin & 0x1F; // Mimicing mbed/libraries/mbed/vendor/NXP/capi/gpio_api.c __disable_irq(); // Disable interrupts temporarily because we don't want our pulse timing to be messed up. while(count--) { led_strip_write_color(colors++, gpio.reg_set, gpio.reg_clr, gpio.mask); if (interruptFriendly) { __enable_irq(); //asm volatile("nop\n"); __disable_irq(); } } __enable_irq(); // Re-enable interrupts now that we are done. wait_us(24); // Hold the line low for 24 microseconds to send the reset signal. } } using namespace Pololu; DigitalOut myled(LED1); PololuLedStrip ledStrip(p8); DigitalOut myled2(LED2); #define LED_COUNT 60 rgb_color colors[LED_COUNT]; int main() { gpio_t gpio; gpio_init(&gpio, p8, PIN_OUTPUT); while(1) { myled2 = !myled2.read(); ledStrip.write(colors, LED_COUNT); wait_ms(200); } }