str(flash_page_size))
if board.chip["family"] == "ESP8266":
codeOut("#define FLASH_START " + hex(0x0))
elif board.chip["family"] == "NRF52" or board.chip["family"] == "NRF51":
codeOut("#define FLASH_START " + hex(0x0))
elif board.chip["class"] == "EFM32":
codeOut(
"#define FLASH_START FLASH_BASE // FLASH_BASE defined in em_device.h"
)
else:
codeOut("#define FLASH_START " + hex(0x08000000))
if has_bootloader:
codeOut("#define BOOTLOADER_SIZE " +
str(common.get_bootloader_size(board)))
codeOut("#define ESPRUINO_BINARY_ADDRESS " +
hex(common.get_espruino_binary_address(board)))
codeOut("")
codeOut("#define FLASH_SAVED_CODE_START " +
str(flash_saved_code_start))
codeOut("#define FLASH_SAVED_CODE_LENGTH " +
str(int(flash_page_size * flash_saved_code_pages)))
codeOut(
"#define FLASH_MAGIC_LOCATION (FLASH_SAVED_CODE_START + FLASH_SAVED_CODE_LENGTH - 4)"
)
codeOut("#define FLASH_MAGIC 0xDEADBEEF")
codeOut("")
codeOut("#define USART_COUNT " +
str(board.chip["usart"]))
codeOut("#define SPI_COUNT " +
str(board.chip["spi"]))
codeOut("#define I2C_COUNT " +
# 64k at 0x10000000
if board.chip["part"].startswith("STM32L496") and RAM_SIZE > 256*1024:
RAM_SIZE = 256*1024
# IS_BOOTLOADER will only get used on official Espruino
# boards. The ST discovery bootloader rejects firmwares that
# aren't based at 0x08000000, however it seems to be wrong. If you use
# DFU then the built-in DFU bootloader will fail to load
# the firmware on reboot if FLASH_BASE is 0x08000000, but
# will work if it's 0x00000000
if IS_BOOTLOADER:
FLASH_SIZE = BOOTLOADER_SIZE
FLASH_BASE = 0x00000000
elif IS_USING_BOOTLOADER:
FLASH_BASE = common.get_espruino_binary_address(board)
FLASH_SIZE -= BOOTLOADER_SIZE
STACK_START = RAM_BASE + RAM_SIZE
codeOut("""
/* Automatically generated linker file for """+boardname+"""
Generated by scripts/build_linker.py
ENTRY(Reset_Handler)
/* Highest stack address */
_estack = """+hex(STACK_START)+""";
MEMORY
{
codeOut("#define FLASH_AVAILABLE_FOR_CODE "+str(int(flash_available_for_code)))
if board.chip["class"]=="EFM32":
codeOut("// FLASH_PAGE_SIZE defined in em_device.h");
else:
codeOut("#define FLASH_PAGE_SIZE "+str(flash_page_size))
if board.chip["family"]=="ESP8266":
codeOut("#define FLASH_START "+hex(0x0))
elif board.chip["family"]=="NRF52" or board.chip["family"]=="NRF51":
codeOut("#define FLASH_START "+hex(0x0))
elif board.chip["class"]=="EFM32":
codeOut("#define FLASH_START FLASH_BASE // FLASH_BASE defined in em_device.h")
else:
codeOut("#define FLASH_START "+hex(0x08000000))
if has_bootloader:
codeOut("#define BOOTLOADER_SIZE "+str(common.get_bootloader_size(board)))
codeOut("#define ESPRUINO_BINARY_ADDRESS "+hex(common.get_espruino_binary_address(board)))
codeOut("")
codeOut("#define FLASH_SAVED_CODE_START "+str(flash_saved_code_start))
codeOut("#define FLASH_SAVED_CODE_LENGTH "+str(int(flash_page_size*flash_saved_code_pages)))
codeOut("");
codeOut("#define CLOCK_SPEED_MHZ "+str(board.chip["speed"]))
codeOut("#define USART_COUNT "+str(board.chip["usart"]))
codeOut("#define SPI_COUNT "+str(board.chip["spi"]))
codeOut("#define I2C_COUNT "+str(board.chip["i2c"]))
codeOut("#define ADC_COUNT "+str(board.chip["adc"]))
codeOut("#define DAC_COUNT "+str(board.chip["dac"]))
codeOut("#define EXTI_COUNT "+str(exti_count))
codeOut("");
# -----------------------------------------------------------------------------------------
BOOTLOADER_SIZE = common.get_bootloader_size(board)
RAM_BASE = 0x20000000
FLASH_BASE = 0x00000000
RAM_SIZE = board.chip["ram"] * 1024
FLASH_SIZE = board.chip["flash"] * 1024
# Beware - on some devices (the STM32F4) the memory is divided into two non-continuous blocks
if board.chip["family"] == "STM32F4" and RAM_SIZE > 128 * 1204:
RAM_SIZE = 128 * 1024
if IS_BOOTLOADER:
FLASH_SIZE = BOOTLOADER_SIZE
elif IS_USING_BOOTLOADER:
FLASH_BASE = common.get_espruino_binary_address(board)
FLASH_SIZE -= BOOTLOADER_SIZE
STACK_START = RAM_BASE + RAM_SIZE
codeOut("""
/* Automatically generated linker file for """ + boardname + """
Generated by scripts/build_linker.py
ENTRY(Reset_Handler)
/* Highest stack address */
_estack = """ + hex(STACK_START) + """;
MEMORY
{
