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Bare metal Dlang ARM
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| // https://github.com/ldc-developers/ldc/issues/3290 | |
| import ldc.attributes; | |
| @llvmAttr("nounwind"): | |
| import ldc.llvmasm; | |
| #include <libopencm3/stm32/rcc.h> | |
| #include <libopencm3/stm32/gpio.h> | |
| static void gpio_setup() | |
| { | |
| rcc_periph_clock_enable(RCC_GPIOB); | |
| gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO1); | |
| } | |
| import ldc.attributes; | |
| extern(C) void main() | |
| { | |
| int i; | |
| gpio_setup(); | |
| while (1) { | |
| gpio_toggle(GPIOB, GPIO1); /* LED on/off */ | |
| for (i = 0; i < 800000; i++) /* Wait a bit. */ | |
| __asm("nop", ""); | |
| } | |
| } |
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Related: libopencm3/libopencm3#1164