From 8d538b3935842204c7a545184df302958fc2015d Mon Sep 17 00:00:00 2001
From: Karl Palsson <karlp@tweak.net.au>
Date: Fri, 16 Oct 2015 21:56:42 +0000
Subject: stub adc on/off test code.

Needs a pot on PA0, should get the temperature input working as well.
---
 shared/trace.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 shared/trace.c

(limited to 'shared/trace.c')

diff --git a/shared/trace.c b/shared/trace.c
new file mode 100644
index 0000000..9e05d9a
--- /dev/null
+++ b/shared/trace.c
@@ -0,0 +1,54 @@
+#include <stdint.h>
+#include <libopencm3/cm3/common.h>
+#include <libopencm3/cm3/memorymap.h>
+#include <libopencm3/cm3/itm.h>
+#include "trace.h"
+
+void trace_send_blocking8(int stimulus_port, char c) {
+	if (!(ITM_TER[0] & (1<<stimulus_port))) {
+		return;
+	}
+	while (!(ITM_STIM8(stimulus_port) & ITM_STIM_FIFOREADY))
+		;
+	ITM_STIM8(stimulus_port) = c;
+}
+
+void trace_send8(int stimulus_port, char val) {
+	if (!(ITM_TER[0] & (1<<stimulus_port))) {
+		return;
+	}
+	ITM_STIM8(stimulus_port) = val;
+}
+
+void trace_send_blocking16(int stimulus_port, uint16_t val) {
+	if (!(ITM_TER[0] & (1<<stimulus_port))) {
+		return;
+	}
+	while (!(ITM_STIM16(stimulus_port) & ITM_STIM_FIFOREADY))
+		;
+	ITM_STIM16(stimulus_port) = val;
+}
+
+void trace_send16(int stimulus_port, uint16_t val) {
+	if (!(ITM_TER[0] & (1<<stimulus_port))) {
+		return;
+	}
+	ITM_STIM16(stimulus_port) = val;
+}
+
+
+void trace_send_blocking32(int stimulus_port, uint32_t val) {
+	if (!(ITM_TER[0] & (1<<stimulus_port))) {
+		return;
+	}
+	while (!(ITM_STIM32(stimulus_port) & ITM_STIM_FIFOREADY))
+		;
+	ITM_STIM32(stimulus_port) = val;
+}
+
+void trace_send32(int stimulus_port, uint32_t val) {
+	if (!(ITM_TER[0] & (1<<stimulus_port))) {
+		return;
+	}
+	ITM_STIM32(stimulus_port) = val;
+}
-- 
cgit