Add SAMx7x timer support

README.md

@@ -469,7 +469,7 @@ Please [discover modm's peripheral drivers for your specific device][discover].
 <td align="center">✅</td>
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-<td align="center">○</td>
+<td align="center">✅</td>
 <td align="center">✅</td>
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examples/samv71_xplained_ultra/timer/main.cpp

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2023, Christopher Durand
+ *
+ * This file is part of the modm project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+// ----------------------------------------------------------------------------
+
+#include <modm/board.hpp>
+#include <modm/platform/timer/timer_channel_0.hpp>
+#include <modm/platform/timer/timer_channel_10.hpp>
+
+using namespace Board;
+
+// use timer channel 10 to toggle led
+MODM_ISR(TC10)
+{
+	// clear interrupt flags by reading
+	(void) TimerChannel10::getInterruptFlags();
+	Led0::toggle();
+}
+
+using Tioa0 = GpioA0;
+
+
+int main()
+{
+	Board::initialize();
+
+	MODM_LOG_INFO << "Timer / Counter Test" << modm::endl;
+
+	// generate 25% duty-cycle 100 kHz PWM waveform on TIOA0 output (GpioA0, output labeled D3 on board)
+	TimerChannel0::initialize();
+	TimerChannel0::connect<Tioa0::Tioa>();
+
+	TimerChannel0::setClockSource(TimerChannel0::ClockSource::Mck);
+	TimerChannel0::setWaveformMode(true);
+	// Up-counter, reset on register C compare match
+	TimerChannel0::setWaveformSelection(TimerChannel0::WavSel::Up_Rc);
+
+	// Clear output on register A match, set on register C match
+	TimerChannel0::setTioaEffects(TimerChannel0::TioEffect::Clear, TimerChannel0::TioEffect::Set);
+	// period MCLK = 150 MHz / 1500 = 100 kHz
+	// duty-cycle 375 / 1500 = 25%
+	TimerChannel0::setRegA(375);
+	TimerChannel0::setRegC(1500);
+	TimerChannel0::enable();
+	TimerChannel0::start();
+
+	// setup timer channel 10 to run interrupt at ~1 Hz from ~32 kHz internal slow clock
+	TimerChannel10::initialize();
+	TimerChannel10::setClockSource(TimerChannel10::ClockSource::Slck);
+	// Toggle every 16384 / 32768 kHz = 0.5s => 1 Hz period
+	TimerChannel10::setRegC(16384);
+	TimerChannel10::setWaveformMode(true);
+	TimerChannel10::setWaveformSelection(TimerChannel10::WavSel::Up_Rc);
+	TimerChannel10::enableInterruptVector(true);
+	TimerChannel10::enableInterrupt(TimerChannel10::Interrupt::RcCompare);
+	TimerChannel10::enable();
+	TimerChannel10::start();
+
+	while (true)
+	{
+		Led1::toggle();
+		modm::delay(500ms);
+	}
+
+	return 0;
+}

examples/samv71_xplained_ultra/timer/project.xml

@@ -0,0 +1,10 @@
+<library>
+  <extends>modm:samv71-xplained-ultra</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/samv71_xplained_ultra/timer</option>
+  </options>
+  <modules>
+    <module>modm:build:scons</module>
+    <module>modm:platform:timer:*</module>
+  </modules>
+</library>

src/modm/platform/timer/samg/module.lb

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 #
 # Copyright (c) 2021, Jeff McBride
+# Copyright (c) 2023, Christopher Durand
 #
 # This file is part of the modm project.
 #
@@ -41,14 +42,15 @@ def init(module):
 
 def prepare(module, options):
     device = options[":target"]
-    if not device.has_driver("tc:samg*"):
+    family = device.identifier.family
+    if not device.has_driver("tc:sam*") or family not in ["g5x", "e7x/s7x/v7x"]:
         return False
 
     module.depends(
         ":cmsis:device",
         ":platform:gpio")
 
-    timers = device.get_all_drivers("tc:samg*")
+    timers = device.get_all_drivers("tc:sam*")
     for driver in timers:
         for instance in driver["instance"]:
             instance = int(instance)
@@ -64,4 +66,5 @@ def prepare(module, options):
 
 def build(env):
     env.outbasepath = "modm/src/modm/platform/timer"
-    env.copy("timer_channel_base.hpp")
+    env.substitutions = props
+    env.template("timer_channel_base.hpp.in", "timer_channel_base.hpp")