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Python API Examples
===================
### Hello World example code
This example shows basic connection, loading a firmware binary, and some simple target control.
```python
from pyocd.core.helpers import ConnectHelper
import logging
logging.basicConfig(level=logging.INFO)
with ConnectHelper.session_with_chosen_probe() as session:
board = session.board
target = board.target
flash = board.flash
# Load firmware into device.
flash.flash_binary("my_firmware.bin")
# Reset, run.
target.reset_stop_on_reset()
target.resume()
# Read some registers.
print("pc: 0x%X" % target.read_core_register("pc"))
target.step()
print("pc: 0x%X" % target.read_core_register("pc"))
target.resume()
target.halt()
print("pc: 0x%X" % target.read_core_register("pc"))
target.reset_stop_on_reset()
print("pc: 0x%X" % target.read_core_register("pc"))
```
### ELF files and breakpoints
Expanding on the above example, this code demonstrates reading a symbol address from an ELF file
and setting a breakpoint. Then the target is reset and run until the breakpoint is hit.
```python
from pyocd.core.target import Target
from pyocd.debug.elf.symbols import ELFSymbolProvider
# Set ELF file on target.
target.elf = "my_firmware.elf"
# Look up address of main().
provider = ELFSymbolProvider(target.elf)
addr = provider.get_symbol_value("main")
print("main() address: 0x%X" % addr)
# Set breakpoint.
target.set_breakpoint(addr)
# Reset and run.
target.reset()
# Wait until breakpoint is hit.
while target.get_state() != Target.TARGET_HALTED:
pass
# Print PC.
pc = target.read_core_register("pc")
print("pc: 0x%X" % pc)
assert pc == addr
# Remove breakpoint.
target.remove_breakpoint()
```
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