Consider issuing the request by hand
telnet 192.168.41.159 7147
and then type
?read payload_length 0 4
if that fails, maybe try
?listdev to see if the device is even programmed
regards
marc
On Wed, Dec 18, 2019 at 2:49 AM Indrajit Barve <indra...@iiap.res.in> wrote:
> Dear all,
>
> I could able to program the .bof file on snap program using the old
> casperfpga package.
> I am able to see the register values at using the listdev. Where I am
> trying to write and read those registers I am getting errors.
>
> is that KATCP version issues ?
>
> fpga.listdev()
> Out[2]:
> ['adc16_controller',
> 'adc16_use_synth',
> 'adc16_wb_ram0',
> 'adc16_wb_ram1',
> 'adc16_wb_ram2',
> 'frame_cnt',
> 'lmx_ctrl',
> 'payload_length',
> 'reset_counts',
> 'sharaed_bram',
> 'sys_block',
> 'sys_board_id',
> 'sys_clkcounter',
> 'sys_rev',
> 'sys_rev_rcs',
> 'sys_scratchpad',
> 'xadc']
>
>
>
> In [1]: run snap_adc.py
> ---------------------------------------------------------------------------
> KatcpRequestFail Traceback (most recent call last)
> /usr/lib/python2.7/dist-packages/IPython/utils/py3compat.pyc in
> execfile(fname, *where)
> 202 else:
> 203 filename = fname
> --> 204 __builtin__.execfile(filename, *where)
>
> /home/pulsar/Documents/python_workspace/snap_adc.py in <module>()
> 8 fpga.program()
> 9 time.sleep(3)
> ---> 10 fpga.write_int('payload_length', 1024)
> 11 fpga.write_int('reset_counts', 200000000)
>
> /usr/local/lib/python2.7/dist-packages/casperfpga/casperfpga.pyc in
> write_int(self, device_name, integer, blindwrite, word_offset)
> 285 self.blindwrite(device_name, data, word_offset*4)
> 286 else:
> --> 287 self.write(device_name, data, word_offset*4)
> 288 LOGGER.debug('%s: write_int %8x to register %s at word
> offset %d '
> 289 'okay%s.' % (self.host, integer, device_name,
>
> /usr/local/lib/python2.7/dist-packages/casperfpga/casperfpga.pyc in
> write(self, device_name, data, offset)
> 228 """
> 229 self.blindwrite(device_name, data, offset)
> --> 230 new_data = self.read(device_name, len(data), offset)
> 231 if new_data != data:
> 232 unpacked_wrdata = struct.unpack('>L', data[0:4])[0]
>
> /usr/local/lib/python2.7/dist-packages/casperfpga/katcp_fpga.pyc in
> read(self, device_name, size, offset)
> 252 require_ok=True,
> 253 request_args=(device_name,
> str(offset),
> --> 254 str(size)))
> 255 return reply.arguments[1]
> 256
>
> /usr/local/lib/python2.7/dist-packages/casperfpga/katcp_fpga.pyc in
> katcprequest(self, name, request_timeout, require_ok, request_args)
> 161 'Request %s on host %s failed.\n\t'
> 162 'Request: %s\n\tReply: %s' %
> --> 163 (request.name, self.host, request, reply))
> 164 elif reply.arguments[0] == katcp.Message.INVALID:
> 165 raise KatcpRequestInvalid(
>
> KatcpRequestFail: Request read on host 192.168.41.159 failed.
> Request: ?read payload_length 0 4
> Reply: !read fail
>
>
>
> *Indrajit Barve*
> indra...@iiap.res.in
> Radio Astronomy Group
> <https://maps.google.com/?q=Radio%20Astronomy%20Group%20>
>
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