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migrated blinky.c to new libopencm3 stuff (copied from libopencm3 miniblink example)

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This commit is contained in:
Michael Ossmann
2012-06-07 08:15:22 -06:00
parent aeced361cf
commit afdcd3f37e
2 changed files with 52 additions and 31 deletions
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9
firmware/blinky/Makefile
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@ -1,12 +1,5 @@
# Hey Emacs, this is a -*- makefile -*- # Hey Emacs, this is a -*- makefile -*-
# Target file name (without extension). BINARY = blinky
TARGET = blinky
# List C source files here. (C dependencies are automatically generated.)
SRC = $(TARGET).c \
$(LIBS_PATH)/LPC43xx_M4_Startup.c \
$(LIBS_PATH)/LPC43xx_M4_Interrupts.c \
$(LIBS_PATH)/hackrf_core.c
include ../common/Makefile_inc.mk include ../common/Makefile_inc.mk

72
firmware/blinky/blinky.c
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@ -19,38 +19,66 @@
* Boston, MA 02110-1301, USA. * Boston, MA 02110-1301, USA.
*/ */
#include <libopencm3/lpc43xx/gpio.h>
#include <libopencm3/lpc43xx/scu.h>
#include "hackrf_core.h" #include "hackrf_core.h"
void wait(uint8_t duration) void gpio_setup(void)
{ {
volatile uint32_t i; /* Configure SCU Pin Mux as GPIO */
for (i = 0; i < duration * 1000000; i++); scu_pinmux(SCU_PINMUX_LED1, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_LED2, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_LED3, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_EN1V8, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_BOOT0, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_BOOT1, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_BOOT2, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_BOOT3, SCU_GPIO_FAST);
/* Configure all GPIO as Input (safe state) */
GPIO0_DIR = 0;
GPIO1_DIR = 0;
GPIO2_DIR = 0;
GPIO3_DIR = 0;
GPIO4_DIR = 0;
GPIO5_DIR = 0;
GPIO6_DIR = 0;
GPIO7_DIR = 0;
/* Configure GPIO2[1/2/8] (P4_1/2 P6_12) as output. */
GPIO2_DIR |= (PIN_LED1|PIN_LED2|PIN_LED3);
/* GPIO3[6] on P6_10 as output. */
GPIO3_DIR |= PIN_EN1V8;
} }
uint32_t boot0, boot1, boot2, boot3; u32 boot0, boot1, boot2, boot3;
int main() int main(void)
{ {
int i;
gpio_setup();
gpio_init(); /* Set 1V8 */
gpio_set(PORT_EN1V8, PIN_EN1V8);
EN1V8_SET; /* Blink LED1/2/3 on the board and Read BOOT0/1/2/3 pins. */
EN1V8_CLR; while (1)
{
boot0 = BOOT0_STATE;
boot1 = BOOT1_STATE;
boot2 = BOOT2_STATE;
boot3 = BOOT3_STATE;
while (1) { gpio_set(PORT_LED1_3, (PIN_LED1|PIN_LED2|PIN_LED3)); /* LEDs on */
boot0 = BOOT0; for (i = 0; i < 2000000; i++) /* Wait a bit. */
boot1 = BOOT1; __asm__("nop");
boot2 = BOOT2; gpio_clear(PORT_LED1_3, (PIN_LED1|PIN_LED2|PIN_LED3)); /* LED off */
boot3 = BOOT3; for (i = 0; i < 2000000; i++) /* Wait a bit. */
__asm__("nop");
LED1_SET;
LED2_SET;
LED3_SET;
wait(1);
LED1_CLR;
LED2_CLR;
LED3_CLR;
wait(1);
} }
return 0; return 0;