1 files changed, 77 insertions, 0 deletions
diff --git a/tests/uart-basic/main-stm32l476disco.c b/tests/uart-basic/main-stm32l476disco.c
new file mode 100644
index 0000000..82c98f0
--- /dev/null
+++ b/tests/uart-basic/main-stm32l476disco.c
@@ -0,0 +1,77 @@
+/*
+ * Oct 2017 Karl Palsson <karlp@tweak.net.au>
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <libopencm3/cm3/nvic.h>
+#include <libopencm3/stm32/flash.h>
+#include <libopencm3/stm32/gpio.h>
+#include <libopencm3/stm32/pwr.h>
+#include <libopencm3/stm32/rcc.h>
+#include <libopencm3/stm32/usart.h>
+
+#include "uart-basic.h"
+
+#define LED_DISCO_GREEN_RCC RCC_GPIOE
+#define LED_DISCO_GREEN_PORT GPIOE
+#define LED_DISCO_GREEN_PIN GPIO8
+
+void usart2_isr(void)
+{
+	ub_irq_handler();
+}
+
+static void setup_rcc_hack(void)
+{
+	pwr_set_vos_scale(PWR_SCALE1);
+	flash_set_ws(FLASH_ACR_LATENCY_2WS);
+	rcc_set_msi_range(RCC_CR_MSIRANGE_48MHZ);
+
+	/* ok, we manually poked around, let the lib know */
+	rcc_apb1_frequency = rcc_apb2_frequency = 48e6;
+}
+
+static void board_init(void)
+{
+	rcc_periph_clock_enable(RCC_GPIOD);
+	gpio_mode_setup(GPIOD, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO5 | GPIO6);
+	/* usart2 is AF7 */
+	gpio_set_af(GPIOD, GPIO_AF7, GPIO5 | GPIO6);
+}
+
+int main(void)
+{
+	int i;
+	int j = 0;
+	setup_rcc_hack();
+	board_init();
+	struct ub_hw ub = {
+		.uart = USART2,
+		.uart_nvic = NVIC_USART2_IRQ,
+		.uart_rcc = RCC_USART2,
+	};
+	ub_init(&ub);
+	printf("hi guys!\n");
+	/* green led for ticking */
+	rcc_periph_clock_enable(LED_DISCO_GREEN_RCC);
+	gpio_mode_setup(LED_DISCO_GREEN_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
+		LED_DISCO_GREEN_PIN);
+
+
+	while (1) {
+		gpio_toggle(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN);
+
+		for (i = 0; i < 0xa0000; i++) { /* Wait a bit. */
+			__asm__("NOP");
+		}
+		ub_task();
+		gpio_toggle(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN);
+		for (i = 0; i < 0xa0000; i++) { /* Wait a bit. */
+			__asm__("NOP");
+		}
+	}
+
+	return 0;
+}