l4 miniblink

We'll build up to the adc temp sensor from here

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/adc-power/main-stm32l4-disco.c b/tests/adc-power/main-stm32l4-disco.c
new file mode 100644
index 0000000..4b8ca43
--- /dev/null
+++ b/tests/adc-power/main-stm32l4-disco.c
@@ -0,0 +1,44 @@
+
+/*
+ * Nov 2015 Karl Palsson <karlp@tweak.net.au>
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <libopencm3/cm3/nvic.h>
+#include <libopencm3/stm32/gpio.h>
+#include <libopencm3/stm32/rcc.h>
+
+#define LED_DISCO_RED_PORT GPIOB
+#define LED_DISCO_RED_PIN GPIO2
+#define LED_DISCO_GREEN_PORT GPIOE
+#define LED_DISCO_GREEN_PIN GPIO8
+
+
+int main(void)
+{
+	int i;
+	int j = 0;
+	rcc_periph_clock_enable(RCC_GPIOB);
+	rcc_periph_clock_enable(RCC_GPIOE);
+	/* green led for ticking */
+	gpio_mode_setup(LED_DISCO_GREEN_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
+			LED_DISCO_GREEN_PIN);
+	gpio_mode_setup(LED_DISCO_RED_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
+			LED_DISCO_RED_PIN);
+
+	while (1) {
+		gpio_toggle(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN);
+
+		for (i = 0; i < 0x10000; i++) { /* Wait a bit. */
+			__asm__("NOP");
+		}
+		gpio_toggle(LED_DISCO_RED_PORT, LED_DISCO_RED_PIN);
+		for (i = 0; i < 0x10000; i++) { /* Wait a bit. */
+			__asm__("NOP");
+		}
+	}
+
+	return 0;
+}