espressif/arduino-esp32
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me-no-dev
2017-04-04 01:26:23 +03:00
parent 7e45310771
commit 80322311f1
70 changed files with 702 additions and 296 deletions
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28
tools/sdk/include/ulp/esp32/ulp.h
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@ -847,6 +847,34 @@ static inline uint32_t SOC_REG_TO_ULP_PERIPH_SEL(uint32_t reg) {
*/
esp_err_t ulp_process_macros_and_load(uint32_t load_addr, const ulp_insn_t* program, size_t* psize);
/**
* @brief Load ULP program binary into RTC memory
*
* ULP program binary should have the following format (all values little-endian):
*
* 1. MAGIC, (value 0x00706c75, 4 bytes)
* 2. TEXT_OFFSET, offset of .text section from binary start (2 bytes)
* 3. TEXT_SIZE, size of .text section (2 bytes)
* 4. DATA_SIZE, size of .data section (2 bytes)
* 5. BSS_SIZE, size of .bss section (2 bytes)
* 6. (TEXT_OFFSET - 16) bytes of arbitrary data (will not be loaded into RTC memory)
* 7. .text section
* 8. .data section
*
* Linker script in components/ulp/ld/esp32.ulp.ld produces ELF files which
* correspond to this format. This linker script produces binaries with load_addr == 0.
*
* @param load_addr address where the program should be loaded, expressed in 32-bit words
* @param program_binary pointer to program binary
* @param program_size size of the program binary
* @return
* - ESP_OK on success
* - ESP_ERR_INVALID_ARG if load_addr is out of range
* - ESP_ERR_INVALID_SIZE if program_size doesn't match (TEXT_OFFSET + TEXT_SIZE + DATA_SIZE)
* - ESP_ERR_NOT_SUPPORTED if the magic number is incorrect
*/
esp_err_t ulp_load_binary(uint32_t load_addr, const uint8_t* program_binary, size_t program_size);
/**
* @brief Run the program loaded into RTC memory
* @param entry_point entry point, expressed in 32-bit words