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Merge branch 'feature/c6_ulp' into 'master'
ulp: added basic support for building and running a binary in the lp core Closes IDF-6829 and IDF-6272 See merge request espressif/esp-idf!22554
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| # CMake toolchain file for ULP LP core | ||
| set(CMAKE_SYSTEM_NAME Generic) | ||
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| set(CMAKE_C_COMPILER "riscv32-esp-elf-gcc") | ||
| set(CMAKE_CXX_COMPILER "riscv32-esp-elf-g++") | ||
| set(CMAKE_ASM_COMPILER "riscv32-esp-elf-gcc") | ||
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| set(CMAKE_C_FLAGS "-Os -march=rv32imac_zicsr_zifencei -mdiv -fdata-sections -ffunction-sections" | ||
| CACHE STRING "C Compiler Base Flags") | ||
| set(CMAKE_CXX_FLAGS "-Os -march=rv32imac_zicsr_zifencei -mdiv -fdata-sections -ffunction-sections" | ||
| CACHE STRING "C++ Compiler Base Flags") | ||
| set(CMAKE_ASM_FLAGS "-march=rv32imac -x assembler-with-cpp" | ||
| CACHE STRING "Assembler Base Flags") | ||
| set(CMAKE_EXE_LINKER_FLAGS "-march=rv32imac_zicsr_zifencei --specs=nano.specs --specs=nosys.specs" | ||
| CACHE STRING "Linker Base Flags") |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| /* | ||
| * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
| #include "sdkconfig.h" | ||
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| ENTRY(reset_vector) | ||
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| MEMORY | ||
| { | ||
| /*first 128byte for exception/interrupt vectors*/ | ||
| vector_table(RX) : ORIGIN = 0x50000000, LENGTH = 0x80 | ||
| ram(RWX) : ORIGIN = 0x50000080, LENGTH = CONFIG_ULP_COPROC_RESERVE_MEM - 0x80 | ||
| } | ||
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| SECTIONS | ||
| { | ||
| .vector.text : | ||
| { | ||
| /*exception/interrupt vectors*/ | ||
| __mtvec_base = .; | ||
| KEEP (*(.init.vector .init.vector.*)) | ||
| } > vector_table | ||
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| . = ORIGIN(ram); | ||
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| .text ALIGN(4): | ||
| { | ||
| *(.text.vectors) /* Default reset vector must link to offset 0x80 */ | ||
| *(.text) | ||
| *(.text*) | ||
| } >ram | ||
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| .rodata ALIGN(4): | ||
| { | ||
| *(.rodata) | ||
| *(.rodata*) | ||
| } > ram | ||
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| .data ALIGN(4): | ||
| { | ||
| *(.data) | ||
| *(.data*) | ||
| *(.sdata) | ||
| *(.sdata*) | ||
| } > ram | ||
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| .bss ALIGN(4) : | ||
| { | ||
| *(.bss) | ||
| *(.bss*) | ||
| *(.sbss) | ||
| *(.sbss*) | ||
| PROVIDE(end = .); | ||
| } >ram | ||
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| __stack_top = ORIGIN(ram) + LENGTH(ram); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| /* | ||
| * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
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| #pragma once | ||
| #include <stdint.h> | ||
| #include <stddef.h> | ||
| #include <stdlib.h> | ||
| #include "esp_err.h" | ||
| #include "ulp_common.h" | ||
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| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
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| typedef enum { | ||
| ULP_LP_CORE_WAKEUP_SOURCE_HP_CPU, // LP core is started by HP core (1 single wakeup) | ||
| } ulp_lp_core_wakeup_source_t; | ||
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| /** | ||
| * @brief ULP LP core init parameters | ||
| * | ||
| */ | ||
| typedef struct { | ||
| ulp_lp_core_wakeup_source_t wakeup_source; | ||
| } ulp_lp_core_cfg_t; | ||
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| /** | ||
| * @brief Configure the ULP | ||
| * and run the program loaded into RTC memory | ||
| * | ||
| * @return ESP_OK on success | ||
| */ | ||
| esp_err_t ulp_lp_core_run(ulp_lp_core_cfg_t* cfg); | ||
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| /** | ||
| * @brief Load the program binary into RTC memory | ||
| * | ||
| * @param program_binary pointer to program binary | ||
| * @param program_size_bytes size of the program binary | ||
| * @return | ||
| * - ESP_OK on success | ||
| * - ESP_ERR_INVALID_SIZE if program_size_bytes is more than KiB | ||
| */ | ||
| esp_err_t ulp_lp_core_load_binary(const uint8_t* program_binary, size_t program_size_bytes); | ||
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| #ifdef __cplusplus | ||
| } | ||
| #endif |
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