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Improve code snippets. Re-work linker stuff. Add new 8-bit target.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // Copyright Christopher Kormanyos 2014. | ||
| // Distributed under the Boost Software License, | ||
| // Version 1.0. (See accompanying file LICENSE_1_0.txt | ||
| // or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| // | ||
|
|
||
| #ifndef MCAL_BENCHMARK_2014_04_16_H_ | ||
| #define MCAL_BENCHMARK_2014_04_16_H_ | ||
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| #include <cstdint> | ||
| #include <mcal_port.h> | ||
| #include <mcal_reg.h> | ||
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| namespace mcal | ||
| { | ||
| namespace benchmark | ||
| { | ||
| typedef mcal::port::port_pin<std::uint8_t, | ||
| std::uint8_t, | ||
| mcal::reg::portd, | ||
| UINT8_C(3)> benchmark_port_type; | ||
| } | ||
| } | ||
|
|
||
| #endif // MCAL_BENCHMARK_2014_04_16_H_ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // Copyright Christopher Kormanyos 2007 - 2018. | ||
| // Distributed under the Boost Software License, | ||
| // Version 1.0. (See accompanying file LICENSE_1_0.txt | ||
| // or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| // | ||
|
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| #include <mcal_cpu.h> | ||
| #include <mcal_osc.h> | ||
| #include <mcal_port.h> | ||
| #include <mcal_wdg.h> | ||
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| void mcal::cpu::init() | ||
| { | ||
| mcal::wdg::init(nullptr); | ||
| mcal::port::init(nullptr); | ||
| mcal::osc::init(nullptr); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // Copyright Christopher Kormanyos 2007 - 2018. | ||
| // Distributed under the Boost Software License, | ||
| // Version 1.0. (See accompanying file LICENSE_1_0.txt | ||
| // or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| // | ||
|
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| #ifndef MCAL_CPU_2009_02_14_H_ | ||
| #define MCAL_CPU_2009_02_14_H_ | ||
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| #if defined(__cplusplus) | ||
| #include <cstdint> | ||
| #else | ||
| #include <stdint.h> | ||
| #endif | ||
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| #include <avr/pgmspace.h> | ||
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| #if defined(__cplusplus) | ||
| namespace mcal | ||
| { | ||
| namespace cpu | ||
| { | ||
| void init(); | ||
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| inline void post_init() { } | ||
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| inline void nop() { asm volatile("nop"); } | ||
| } | ||
| } | ||
| #endif | ||
|
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| #if defined(__cplusplus) | ||
| extern "C" | ||
| { | ||
| #endif | ||
|
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| inline uint8_t mcal_cpu_read_program_memory_byte(const uint8_t* pointer_to_program_memory) | ||
| { | ||
| const uint16_t memory_address = (uint16_t) pointer_to_program_memory; | ||
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| return pgm_read_byte(memory_address); | ||
| } | ||
|
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| inline uint16_t mcal_cpu_read_program_memory_word (const uint8_t* pointer_to_program_memory) | ||
| { | ||
| const uint16_t memory_address = (uint16_t) pointer_to_program_memory; | ||
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| return pgm_read_word(memory_address); | ||
| } | ||
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| inline uint32_t mcal_cpu_read_program_memory_dword(const uint8_t* pointer_to_program_memory) | ||
| { | ||
| const uint16_t memory_address = (uint16_t) pointer_to_program_memory; | ||
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| return pgm_read_dword(memory_address); | ||
| } | ||
|
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| inline uint64_t mcal_cpu_read_program_memory_qword(const uint8_t* pointer_to_program_memory) | ||
| { | ||
| const uint16_t memory_address = (uint16_t) pointer_to_program_memory; | ||
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| uint64_t result_of_read; | ||
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| *(((uint8_t*) &result_of_read) + 0U) = pgm_read_byte(memory_address + 0U); | ||
| *(((uint8_t*) &result_of_read) + 1U) = pgm_read_byte(memory_address + 1U); | ||
| *(((uint8_t*) &result_of_read) + 2U) = pgm_read_byte(memory_address + 2U); | ||
| *(((uint8_t*) &result_of_read) + 3U) = pgm_read_byte(memory_address + 3U); | ||
| *(((uint8_t*) &result_of_read) + 4U) = pgm_read_byte(memory_address + 4U); | ||
| *(((uint8_t*) &result_of_read) + 5U) = pgm_read_byte(memory_address + 5U); | ||
| *(((uint8_t*) &result_of_read) + 6U) = pgm_read_byte(memory_address + 6U); | ||
| *(((uint8_t*) &result_of_read) + 7U) = pgm_read_byte(memory_address + 7U); | ||
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| return result_of_read; | ||
| } | ||
|
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| #if defined(__cplusplus) | ||
| } | ||
| #endif | ||
|
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||
| #endif // MCAL_CPU_2009_02_14_H_ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // Copyright Christopher Kormanyos 2007 - 2015. | ||
| // Distributed under the Boost Software License, | ||
| // Version 1.0. (See accompanying file LICENSE_1_0.txt | ||
| // or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| // | ||
|
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| #include <mcal_gpt.h> | ||
| #include <mcal_reg_access.h> | ||
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| namespace | ||
| { | ||
| // The one (and only one) system tick. | ||
| volatile mcal::gpt::value_type system_tick; | ||
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| bool& gpt_is_initialized() __attribute__((used, noinline)); | ||
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| bool& gpt_is_initialized() | ||
| { | ||
| static bool is_init = bool(); | ||
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| return is_init; | ||
| } | ||
| } | ||
|
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| extern "C" | ||
| void __vector_23() __attribute__((section(".isr_handlers"),signal, used, externally_visible)); | ||
|
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| void __vector_23() | ||
| { | ||
| // Increment the 32-bit system tick with 0x80, representing 128 microseconds. | ||
| system_tick += static_cast<std::uint8_t>(0x80U); | ||
| } | ||
|
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| void mcal::gpt::init(const config_type*) | ||
| { | ||
| if(gpt_is_initialized() == false) | ||
| { | ||
| // Clear the timer0 overflow flag. | ||
| mcal::reg::access<std::uint8_t, std::uint8_t, mcal::reg::tifr0, 0x01U>::reg_set(); | ||
|
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| // Enable the timer0 overflow interrupt. | ||
| mcal::reg::access<std::uint8_t, std::uint8_t, mcal::reg::timsk0, 0x01U>::reg_set(); | ||
|
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| // Set the timer0 clock source to f_osc/8 = 2MHz and begin counting. | ||
| mcal::reg::access<std::uint8_t, std::uint8_t, mcal::reg::tccr0b, 0x02U>::reg_set(); | ||
|
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| // Set the is-initialized indication flag. | ||
| gpt_is_initialized() = true; | ||
| } | ||
| } | ||
|
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| mcal::gpt::value_type mcal::gpt::secure::get_time_elapsed() | ||
| { | ||
| if(gpt_is_initialized()) | ||
| { | ||
| // Return the system tick using a multiple read to ensure data consistency. | ||
|
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| typedef std::uint8_t timer_address_type; | ||
| typedef std::uint8_t timer_register_type; | ||
|
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| // Do the first read of the timer0 counter and the system tick. | ||
| const timer_register_type tim0_cnt_1 = mcal::reg::access<timer_address_type, timer_register_type, mcal::reg::tcnt0>::reg_get(); | ||
| const mcal::gpt::value_type sys_tick_1 = system_tick; | ||
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| // Do the second read of the timer0 counter. | ||
| const timer_register_type tim0_cnt_2 = mcal::reg::access<timer_address_type, timer_register_type, mcal::reg::tcnt0>::reg_get(); | ||
|
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| // Perform the consistency check. | ||
| const mcal::gpt::value_type consistent_microsecond_tick | ||
| = ((tim0_cnt_2 >= tim0_cnt_1) ? mcal::gpt::value_type(sys_tick_1 | std::uint8_t(tim0_cnt_1 >> 1U)) | ||
| : mcal::gpt::value_type(system_tick | std::uint8_t(tim0_cnt_2 >> 1U))); | ||
|
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| return consistent_microsecond_tick; | ||
| } | ||
| else | ||
| { | ||
| return mcal::gpt::value_type(0U); | ||
| } | ||
| } |
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