Add small blink example as bootloader payload test

This commit is contained in:
BlackMark 2020-04-12 18:45:33 +02:00
parent b21673e326
commit 9390f7830b
10 changed files with 498 additions and 119 deletions

3
.gitmodules vendored
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@ -22,3 +22,6 @@
[submodule "stk500v2/flash"] [submodule "stk500v2/flash"]
path = stk500v2/flash path = stk500v2/flash
url = git@git.blackmark.me:avr/flash.git url = git@git.blackmark.me:avr/flash.git
[submodule "blink/io"]
path = blink/io
url = git@git.blackmark.me:avr/io.git

250
blink/blink.cppproj Normal file
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@ -0,0 +1,250 @@
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<ItemGroup>
<Compile Include="bootloader.cpp">
<SubType>compile</SubType>
</Compile>
<Compile Include="bootloader.hpp">
<SubType>compile</SubType>
</Compile>
<Compile Include="clock.hpp">
<SubType>compile</SubType>
</Compile>
<Compile Include="io\io.hpp">
<SubType>compile</SubType>
</Compile>
<Compile Include="main.cpp">
<SubType>compile</SubType>
</Compile>
</ItemGroup>
<ItemGroup>
<Folder Include="io" />
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<Import Project="$(AVRSTUDIO_EXE_PATH)\\Vs\\Compiler.targets" />
</Project>

46
blink/bootloader.cpp Normal file
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@ -0,0 +1,46 @@
#include "bootloader.hpp"
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/wdt.h>
namespace {
typedef void (*jmp_fn)() __attribute__((noreturn));
jmp_fn boot = reinterpret_cast<jmp_fn>(0x0000);
jmp_fn bootloader = reinterpret_cast<jmp_fn>(0x7800 / 2);
} // namespace
bool Bootloader::handleReset()
{
wdt_reset();
uint8_t mcuStatus = MCUSR;
MCUSR &= ~(1 << WDRF);
wdt_disable();
return (mcuStatus & (1 << WDRF));
}
void Bootloader::reset()
{
wdt_enable(WDTO_15MS);
while (true)
;
}
bool Bootloader::check()
{
if (pgm_read_byte(reinterpret_cast<uint16_t>(bootloader) * 2) != 0xFF)
return true;
return false;
}
void Bootloader::call()
{
if (check())
bootloader();
else
boot();
}

24
blink/bootloader.hpp Normal file
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@ -0,0 +1,24 @@
#pragma once
class Bootloader {
public:
template <typename Fn>
static inline void init(Fn callback)
{
if (handleReset()) {
callback();
call();
}
}
static inline void enter()
{
reset();
}
private:
static bool handleReset();
static void reset();
static bool check();
static void call();
};

4
blink/clock.hpp Normal file
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@ -0,0 +1,4 @@
#pragma once
#define F_CPU 18'432'000
#include <util/delay.h>

1
blink/io Submodule

@ -0,0 +1 @@
Subproject commit 80de36ee7ee3e6b0842d5eaee81d54062cb496b2

30
blink/main.cpp Normal file
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@ -0,0 +1,30 @@
#include "clock.hpp"
#include "io/io.hpp"
#include "bootloader.hpp"
int main()
{
io::Pin<io::P::B5> ledPin;
ledPin.dir(io::Dir::OUT);
ledPin = false;
Bootloader::init([&ledPin]() {
for (uint8_t i = 0; i < 10; ++i) {
ledPin = true;
_delay_ms(50);
ledPin = false;
_delay_ms(50);
}
});
for (uint8_t i = 0; i < 10; ++i) {
ledPin.toggle();
_delay_ms(1000);
}
Bootloader::enter();
return 0;
}

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@ -7,6 +7,8 @@ Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "tsb", "tsb\tsb.cppproj", "{
EndProject EndProject
Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "stk500v2", "stk500v2\stk500v2.cppproj", "{19798CCE-5D96-40E9-B769-D209715DCE0C}" Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "stk500v2", "stk500v2\stk500v2.cppproj", "{19798CCE-5D96-40E9-B769-D209715DCE0C}"
EndProject EndProject
Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "blink", "blink\blink.cppproj", "{D887FC8E-EE68-4248-8382-92DBC9A54145}"
EndProject
Global Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|AVR = Debug|AVR Debug|AVR = Debug|AVR
@ -21,6 +23,10 @@ Global
{19798CCE-5D96-40E9-B769-D209715DCE0C}.Debug|AVR.Build.0 = Debug|AVR {19798CCE-5D96-40E9-B769-D209715DCE0C}.Debug|AVR.Build.0 = Debug|AVR
{19798CCE-5D96-40E9-B769-D209715DCE0C}.Release|AVR.ActiveCfg = Release|AVR {19798CCE-5D96-40E9-B769-D209715DCE0C}.Release|AVR.ActiveCfg = Release|AVR
{19798CCE-5D96-40E9-B769-D209715DCE0C}.Release|AVR.Build.0 = Release|AVR {19798CCE-5D96-40E9-B769-D209715DCE0C}.Release|AVR.Build.0 = Release|AVR
{D887FC8E-EE68-4248-8382-92DBC9A54145}.Debug|AVR.ActiveCfg = Debug|AVR
{D887FC8E-EE68-4248-8382-92DBC9A54145}.Debug|AVR.Build.0 = Debug|AVR
{D887FC8E-EE68-4248-8382-92DBC9A54145}.Release|AVR.ActiveCfg = Release|AVR
{D887FC8E-EE68-4248-8382-92DBC9A54145}.Release|AVR.Build.0 = Release|AVR
EndGlobalSection EndGlobalSection
GlobalSection(SolutionProperties) = preSolution GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE HideSolutionNode = FALSE

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@ -93,6 +93,21 @@
</ToolNumber> </ToolNumber>
<ToolName xmlns="">Simulator</ToolName> <ToolName xmlns="">Simulator</ToolName>
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<RegexGroups>address</RegexGroups>
<DebuggerExpression>$pc</DebuggerExpression>
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</PropertyGroup> </PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)' == 'Release' "> <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
<ToolchainSettings> <ToolchainSettings>