Good day!
Try to use simulavr to unit-testing my firmware. In example folder found python
examples, but - found absolutely no documentation about python API. Is it means
that there is no such documentation, only source code?
Tried to understand work of the some simple function. Took for example
functions doRun() and doStep(). As I think now, first of it makes virtual MCU
to do some steps of debugging program, and next - to do only one step. And then
I can see where is program counter by value of self.device.PC?
So I wrote such a simplest assempler file:
.include "m128def.inc"
.text
.org 0
jmp init ; Reset vector
.org SPMRaddr
init:
nop
nop
nop
; ---------- Main (endless) cycle: --------------
main:
nop
jmp main
Then I modified example python file to make it as simple as possible:
# -*- coding: UTF-8 -*-
# Python test script as demonstration of using pysimulavr in unit tests
from unittest import TestSuite, TextTestRunner, TestCase, defaultTestLoader
from sys import argv
import pysimulavr
from ex_utils import SimulavrAdapter
class TestBaseClass(TestCase, SimulavrAdapter):
def setUp(self):
proc, elffile = argv[1].split(":")
self.device = self.loadDevice(proc, elffile)
def tearDown(self):
del self.device
def test_03(self):
"check PC and PC size"
self.assertEqual(self.device.PC_size, 2)
self.doRun(0)
self.assertEqual(self.device.PC, 0x8c / 2)
if __name__ == "__main__":
allTestsFrom = defaultTestLoader.loadTestsFromTestCase
suite = TestSuite()
suite.addTests(allTestsFrom(TestBaseClass))
TextTestRunner(verbosity = 2).run(suite)
# EOF
Sorry for long listing, but I do not know python, and do not know how to attach
large files in it mailing-list.
Then I run test - and get a message:
AssertionError: 0 != 70.
All right, simulation is on the very beginning, on reset vector. Then I make
next step: change string "self.doRun(0)" on "self.doRun(1)".
The message is:
AssertionError: 34 != 70
This is means that simulation is on Init label? But decimal addres of Init
label is 68! Is it 34*2? May be. But when I try to do next
change, "self.doRun(2)", or "self.doRun(10)", or "self.doRun(anything else)" -
I get the same message, 34 != 70. Do this mean that simulation is not going
further than Init label? I want to get messages 35 != 70, 36 != 70 and so on,
corresponds 'nop' instructions of my assembler code. What is my mistake? Maybe
I can read about it somewhere else?
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