From 0ab2988130072d529583afd8058b1f58ba3b4774 Mon Sep 17 00:00:00 2001
From: Karl Palsson <karlp@tweak.net.au>
Date: Fri, 13 Nov 2015 02:12:08 +0000
Subject: l4 miniblink

We'll build up to the adc temp sensor from here
---
 openocd/openocd.stm32l4-disco.cfg      | 12 ++++++++++
 tests/adc-power/Makefile.stm32l4-disco | 33 +++++++++++++++++++++++++
 tests/adc-power/main-stm32l4-disco.c   | 44 ++++++++++++++++++++++++++++++++++
 3 files changed, 89 insertions(+)
 create mode 100644 openocd/openocd.stm32l4-disco.cfg
 create mode 100644 tests/adc-power/Makefile.stm32l4-disco
 create mode 100644 tests/adc-power/main-stm32l4-disco.c

diff --git a/openocd/openocd.stm32l4-disco.cfg b/openocd/openocd.stm32l4-disco.cfg
new file mode 100644
index 0000000..fe6f340
--- /dev/null
+++ b/openocd/openocd.stm32l4-disco.cfg
@@ -0,0 +1,12 @@
+source [find interface/stlink-v2-1.cfg]
+source [find target/stm32l4x.cfg]
+
+# serial of my f072 disco board.
+hla_serial "066DFF495351885087171826"
+
+#tpiu config internal swodump.stm32l4-disco.log uart off 168000000
+
+# Uncomment to reset on connect, for grabbing under WFI et al
+#reset_config srst_only srst_nogate
+reset_config srst_only srst_nogate connect_assert_srst
+
diff --git a/tests/adc-power/Makefile.stm32l4-disco b/tests/adc-power/Makefile.stm32l4-disco
new file mode 100644
index 0000000..99fc9e2
--- /dev/null
+++ b/tests/adc-power/Makefile.stm32l4-disco
@@ -0,0 +1,33 @@
+
+BOARD = stm32l4-disco
+PROJECT = adc-power-$(BOARD)
+BUILD_DIR = bin-$(BOARD)
+
+SHARED_DIR = ../../shared
+
+CFILES = main-$(BOARD).c
+# hah, not yet!
+#CFILES += adc-power.c
+#CFILES += trace.c trace_stdio.c
+
+VPATH += $(SHARED_DIR)
+
+INCLUDES += $(patsubst %,-I%, . $(SHARED_DIR))
+
+OPENCM3_DIR=../../libopencm3/
+
+### This section can go to an arch shared rules eventually...
+#DEVICE=stm32l476vgt6
+#SRCLIBDIR=$(OPENCM3_DIR)
+#include $(OPENCM3_DIR)/ld/Makefile.linker
+LDSCRIPT=$(OPENCM3_DIR)/lib/stm32/l4/stm32l4xxg.ld
+
+OPENCM3_LIB = opencm3_stm32l4
+OPENCM3_DEFS = -DSTM32L4
+FP_FLAGS ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16
+ARCH_FLAGS = -mthumb -mcpu=cortex-m4 $(FP_FLAGS)
+#OOCD_INTERFACE = stlink-v2-1
+#OOCD_TARGET = stm32l4x
+OOCD_FILE = ../../openocd/openocd.stm32l4-disco.cfg
+
+include ../../rules.mk
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;
+}
-- 
cgit