From d0ea0a521a582549dfd9a98b47e7c12d8bcd0de6 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <daniel.friesel@uos.de>
Date: Wed, 22 Jul 2020 14:28:32 +0200
Subject: add timed_resistive_load for µs-scale model generation timing
 benchmarks
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---
 src/arch/msp430fr5994lp/Makefile.inc               | 16 +++-
 .../msp430fr5994lp/driver/timed_resistive_load.cc  | 85 ++++++++++++++++++++++
 2 files changed, 100 insertions(+), 1 deletion(-)
 create mode 100644 src/arch/msp430fr5994lp/driver/timed_resistive_load.cc

(limited to 'src/arch/msp430fr5994lp')

diff --git a/src/arch/msp430fr5994lp/Makefile.inc b/src/arch/msp430fr5994lp/Makefile.inc
index 8348d8e..e9d666f 100644
--- a/src/arch/msp430fr5994lp/Makefile.inc
+++ b/src/arch/msp430fr5994lp/Makefile.inc
@@ -72,6 +72,19 @@ ifneq ($(findstring counter,${arch_drivers}), )
 	CXX_TARGETS += src/arch/msp430fr5994lp/driver/counter.cc
 endif
 
+ifneq ($(findstring timed_resistive_load,${arch_drivers}), )
+	CXX_TARGETS += src/arch/msp430fr5994lp/driver/timed_resistive_load.cc
+	resistor1_pin ?= p3_0
+	resistor2_pin ?= p3_1
+	resistor3_pin ?= p3_2
+	resistor4_pin ?= p3_3
+	COMMON_FLAGS += -DDRIVER_TIMED_RESISTIVE_LOAD
+	COMMON_FLAGS += -DTIMED_RESISTIVE_LOAD_PIN1=GPIO::${resistor1_pin}
+	COMMON_FLAGS += -DTIMED_RESISTIVE_LOAD_PIN2=GPIO::${resistor2_pin}
+	COMMON_FLAGS += -DTIMED_RESISTIVE_LOAD_PIN3=GPIO::${resistor3_pin}
+	COMMON_FLAGS += -DTIMED_RESISTIVE_LOAD_PIN4=GPIO::${resistor4_pin}
+endif
+
 ifneq (${cpu_freq}, )
 	COMMON_FLAGS += -DF_CPU=${cpu_freq}UL
 else
@@ -127,7 +140,8 @@ arch_info:
 	@echo "CPU   Freq: ${cpu_freq} Hz"
 	@echo "Timer Freq: ${timer_freq} Hz -> $(shell src/arch/msp430fr5994lp/model.py f_timer "${cpu_freq}" "${timer_freq}")"
 	@echo "I2C   Freq: ${i2c_freq} Hz"
-	@echo "Counter Overflow: 65536/255"
+	@echo "Counter Overflow: 65536/65535"
+	@echo "sleep_ms Overflow: 250 500"
 	@echo "Monitor: /dev/${SERIAL_PORT} 115200"
 
 .PHONY: arch_clean arch_help arch_info monitor program
diff --git a/src/arch/msp430fr5994lp/driver/timed_resistive_load.cc b/src/arch/msp430fr5994lp/driver/timed_resistive_load.cc
new file mode 100644
index 0000000..2c46be2
--- /dev/null
+++ b/src/arch/msp430fr5994lp/driver/timed_resistive_load.cc
@@ -0,0 +1,85 @@
+#include "driver/timed_resistive_load.h"
+#include "driver/gpio.h"
+#include "arch.h"
+
+#ifndef TIMED_RESISTIVE_LOAD_PIN1
+#error TIMED_RESISTIVE_LOAD_PIN1 must be set
+#endif
+
+#ifndef TIMED_RESISTIVE_LOAD_PIN2
+#error TIMED_RESISTIVE_LOAD_PIN2 must be set
+#endif
+
+#ifndef TIMED_RESISTIVE_LOAD_PIN3
+#error TIMED_RESISTIVE_LOAD_PIN3 must be set
+#endif
+
+#ifndef TIMED_RESISTIVE_LOAD_PIN4
+#error TIMED_RESISTIVE_LOAD_PIN4 must be set
+#endif
+
+void TimedResistiveLoad::setup()
+{
+	gpio.output(TIMED_RESISTIVE_LOAD_PIN1, 0);
+	gpio.output(TIMED_RESISTIVE_LOAD_PIN2, 0);
+	gpio.output(TIMED_RESISTIVE_LOAD_PIN3, 0);
+	gpio.output(TIMED_RESISTIVE_LOAD_PIN4, 0);
+}
+
+void TimedResistiveLoad::switchToNone()
+{
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN1, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN2, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN3, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN4, 0);
+}
+
+void TimedResistiveLoad::switchTo750()
+{
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN1, 1);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN2, 1);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN3, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN4, 0);
+}
+
+void TimedResistiveLoad::switchTo1K0()
+{
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN1, 1);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN2, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN3, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN4, 0);
+}
+
+void TimedResistiveLoad::switchTo2K4()
+{
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN1, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN2, 1);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN3, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN4, 1);
+}
+
+void TimedResistiveLoad::switchTo3K3()
+{
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN1, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN2, 1);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN3, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN4, 0);
+}
+
+void TimedResistiveLoad::switchTo10K()
+{
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN1, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN2, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN3, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN4, 1);
+}
+
+void TimedResistiveLoad::switchTo47K()
+{
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN1, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN2, 0);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN3, 1);
+	gpio.write(TIMED_RESISTIVE_LOAD_PIN4, 0);
+}
+
+TimedResistiveLoad timedResistiveLoad;
-- 
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