test_read_write_sfr.py

# This script is licensed under BSD License, see file LICENSE.txt.
#
# (c) TASKING Germany GmbH, 2023
 
import isystem.connect as ic
 
 
winidea_id = ''
 
 
def test_readWriteSFR():
    connMgr = ic.ConnectionMgr()
    connMgr.connect(ic.CConnectionConfig().instanceId(winidea_id))
 
    dataCtrl2 = ic.CDataController2(connMgr)
 
    print("Determining SFR handle (first SFR register)...")
    cpuSfrs = dataCtrl2.getCPUSFRs(ic.IConnectEclipse.gcsSFRs)
    try:
        sfrs = cpuSfrs.SFRs()
        sfrGroup = sfrs.at(0)
        sfrsInGroup = sfrGroup.SFRs()
        sfr = sfrsInGroup.at(0)
        handle = sfr.Handle()
 
        sType = ic.SType()
        sType.m_byType = ic.SType.tUnsigned
        sType.m_byBitSize = 32
 
        print(f"Reading '{sfr.Name()}'...")
        sfrData = dataCtrl2.readSFR(handle, sType)
        assert sfrData.isError() is False
        value = sfrData.getInt()
        print(f"\tValue: {value}")
        print(f"\tBit size: {sfrData.getBitSize()}")
 
        print(f"Writing value '42' to {sfr.Name()} with read-back option...")
        cVal = ic.CValueType(sType, 42)
        val = sfrData = dataCtrl2.writeSFR(ic.IConnectEclipse.svWriteThenRead,
                                           handle,
                                           cVal)
        assert val.isError() is False
        print(f"\tRead-back value: {val.getResult()}")
 
        print(f"Revert back to original value: {value}")
        cVal = ic.CValueType(sType, value)
        dataCtrl2.writeSFR(0, handle, cVal)
    finally:
        dataCtrl2.release(cpuSfrs)
 
 
if __name__ == "__main__":
    test_readWriteSFR()