概要
UbuntuでAgilent Technologies 82357A(以降82357A)が使用できるようになったので，Red Pitayaでもできるかを試してみる．
↓Ubuntuの場合の手順
環境
ボード : Red Pitaya STEMLab 125-10
OS : Ubuntu 22.04.4 LTS
手順
基本的にはUbuntuの時と変わらないが，makeコマンドを実行した時にエラーが出力された．
$ make -C /lib/modules/`uname -r`/build V=0 modules \
M="/root/Linux-GPIB/linux-gpib-4.3.7/linux-gpib-kernel-4.3.7/drivers/gpib" \
GPIB_TOP_DIR=/root/Linux-GPIB/linux-gpib-4.3.7/linux-gpib-kernel-4.3.7 \
CONFIG_GPIB_ISA="" \
GPIB_CONFIG_PCMCIA="0" \
HAVE_DEV_OF_NODE= \
CLASS_CREATE1ARG=0 \
GPIB_CONFIG_KERNEL_DEBUG=0
make[1]: Entering directory '/usr/kernel'
warning: the compiler differs from the one used to build the kernel
The kernel was built by: arm-linux-gnueabihf-gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
You are using: gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
CC [M] /root/Linux-GPIB/linux-gpib-4.3.7/linux-gpib-kernel-4.3.7/drivers/gpib/agilent_82350b/agilent_82350b.o
/tmp/ccKL8uMW.s: Assembler messages:
/tmp/ccKL8uMW.s:61: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:75: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:137: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:173: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:185: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:198: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:418: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:434: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:459: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:585: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:721: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:787: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:802: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:810: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:917: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:960: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:1246: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:1278: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1296: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1314: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1351: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:1444: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:1452: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1542: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1573: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:1608: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1625: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1643: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1661: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1673: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1685: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1711: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1722: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1844: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1935: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:1950: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:1958: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:2013: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:2039: Error: selected processor does not support `dsb st' in ARM mode
/tmp/ccKL8uMW.s:2114: Error: selected processor does not support `dsb ' in ARM mode
/tmp/ccKL8uMW.s:2141: Error: selected processor does not support `dsb st' in ARM mode
make[3]: *** [scripts/Makefile.build:277: /root/Linux-GPIB/linux-gpib-4.3.7/linux-gpib-kernel-4.3.7/drivers/gpib/agilent_82350b/agilent_82350b.o] Error 1
make[2]: *** [scripts/Makefile.build:540: /root/Linux-GPIB/linux-gpib-4.3.7/linux-gpib-kernel-4.3.7/drivers/gpib/agilent_82350b] Error 2
make[1]: *** [Makefile:1868: /root/Linux-GPIB/linux-gpib-4.3.7/linux-gpib-kernel-4.3.7/drivers/gpib] Error 2
make[1]: Leaving directory '/usr/kernel'
make: *** [Makefile:16: all] Error 2
上の記事で言えば4.ドライバのインストールの項目で発生した．
エラーの根幹は
Error: selected processor does not support `dsb ' in ARM mode
上の部分であり，これはコンパイラがdsbというARMアセンブリ命令を生成したものの「コンパイルのターゲットとして設定されているCPUがその命令をサポートしていない」とアセンブラが判断したために発生している．
そのため，使用しているCPUをコンパイラに教えてあげればよい．
ついでに他の詳細も，コンパイラに伝える．
$ make -C /lib/modules/`uname -r`/build V=0 modules \
EXTRA_CFLAGS="-march=armv7-a" \
M="/root/Linux-GPIB/linux-gpib-4.3.7/linux-gpib-kernel-4.3.7/drivers/gpib" \
GPIB_TOP_DIR=/root/Linux-GPIB/linux-gpib-4.3.7/linux-gpib-kernel-4.3.7 \
CONFIG_GPIB_ISA="" \
GPIB_CONFIG_PCMCIA="0" \
HAVE_DEV_OF_NODE= \
CLASS_CREATE1ARG=0 \
GPIB_CONFIG_KERNEL_DEBUG=0
結果
上のコマンドを実行したところ無事コンパイルできた．
その他の手順については特にエラーは出力されず，無事接続することができた．
おまけ
この変換アダプタを利用して機器と通信してみた．
機器 : ADVANTEST WAVELENGTH METER TQ8325
本機器は通信規格がIEEE規格488-1978であるため，*IDN?コマンドに応答しない．
そのため，送信ができた場合は存在するとした．
import gpib
import time
print("GPIBデバイスをスキャンしています...")
found_devices_list = []
for address in range(1, 31):
inst = None # finally ブロックで使うために先に定義
write_success = False # writeが成功したかを追跡するフラグ
try:
# 1. デバイスへの接続を試みる (REMOTEランプ点灯)
inst = gpib.dev(0, address, 0, 10)
# 2. *IDN? を送信
print(f"[アドレス {address}] ... 接続成功、*IDN? 送信中...")
gpib.write(inst, "*IDN?")
write_success = True # ★ writeに成功したことを記録
time.sleep(0.1)
# 3. 応答を読み取り
response = gpib.read(inst, 100)
# 4. 読み取り成功 (新しい機器の場合)
device_info = response.decode('utf-8').strip()
print(f"★★ [アドレス {address}] 発見: {device_info} ★★")
found_devices_list.append(f"Address {address}: {device_info}")
except gpib.GpibError as e:
# エラーが発生
print(f"[アドレス {address}] でエラー: {e}")
# ★★★ ロジック修正 ★★★
# write() には成功したが (write_success == True)、
# read() で例外が発生した場合 (exceptブロックに入った場合)
if write_success:
print(f"★★ [アドレス {address}] 発見: (接続のみ成功, *IDN? 応答なし) ★★")
found_devices_list.append(f"Address {address}: (TQ8325 or similar, No *IDN?)")
# write() の時点で失敗した場合は (write_success == False)、何もしない
finally:
# スキャン後、必ずREMOTEを解除 (ローカルモードに戻す)
if inst is not None:
try:
gpib.ibloc(inst) # ローカルモードに戻す
except gpib.GpibError:
pass # ローカル復帰失敗は無視
print("-" * 30)
if not found_devices_list:
print("アクティブなGPIBデバイスは見つかりませんでした。")
else:
print(f"{len(found_devices_list)} 台のデバイスが見つかりました:")
for device in found_devices_list:
print(device)
print("スキャン完了。")
実行について，Pythonにgpio.pyの場所を知らせてあげる必要があるため，オプションで伝える．
$ PYTHONPATH=/root/Linux-GPIB/linux-gpib-4.3.7/linux-gpib-user-4.3.7/language/python/build/lib.linux-armv7l-cpython-310 /usr/bin/python ./scan_Equipment.py
実行結果
GPIBデバイスをスキャンしています...
[アドレス 1] ... 接続成功、*IDN? 送信中...
[アドレス 1] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 2] ... 接続成功、*IDN? 送信中...
[アドレス 2] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 3] ... 接続成功、*IDN? 送信中...
[アドレス 3] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 4] ... 接続成功、*IDN? 送信中...
[アドレス 4] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 5] ... 接続成功、*IDN? 送信中...
[アドレス 5] でエラー: read() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
★★ [アドレス 5] 発見: (接続のみ成功, *IDN? 応答なし) ★★
[アドレス 6] ... 接続成功、*IDN? 送信中...
[アドレス 6] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 7] ... 接続成功、*IDN? 送信中...
[アドレス 7] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 8] ... 接続成功、*IDN? 送信中...
[アドレス 8] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 9] ... 接続成功、*IDN? 送信中...
[アドレス 9] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 10] ... 接続成功、*IDN? 送信中...
[アドレス 10] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 11] ... 接続成功、*IDN? 送信中...
[アドレス 11] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 12] ... 接続成功、*IDN? 送信中...
[アドレス 12] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 13] ... 接続成功、*IDN? 送信中...
[アドレス 13] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 14] ... 接続成功、*IDN? 送信中...
[アドレス 14] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 15] ... 接続成功、*IDN? 送信中...
[アドレス 15] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 16] ... 接続成功、*IDN? 送信中...
[アドレス 16] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 17] ... 接続成功、*IDN? 送信中...
[アドレス 17] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 18] ... 接続成功、*IDN? 送信中...
[アドレス 18] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 19] ... 接続成功、*IDN? 送信中...
[アドレス 19] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 20] ... 接続成功、*IDN? 送信中...
[アドレス 20] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 21] ... 接続成功、*IDN? 送信中...
[アドレス 21] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 22] ... 接続成功、*IDN? 送信中...
[アドレス 22] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 23] ... 接続成功、*IDN? 送信中...
[アドレス 23] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 24] ... 接続成功、*IDN? 送信中...
[アドレス 24] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 25] ... 接続成功、*IDN? 送信中...
[アドレス 25] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 26] ... 接続成功、*IDN? 送信中...
[アドレス 26] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 27] ... 接続成功、*IDN? 送信中...
[アドレス 27] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 28] ... 接続成功、*IDN? 送信中...
[アドレス 28] でエラー: write() failed: A read or write of data bytes aborted, possibly due to a timeout or reception of a device clear command.
[アドレス 30] ... 接続成功、*IDN? 送信中...
[アドレス 30] でエラー: write() failed: A read or write of data bytes has been aborted, possibly due to a timeout or reception of a device clear command.
------------------------------
1 台のデバイスが見つかりました:
Address 5: (TQ8325 or similar, No *IDN?)
スキャン完了。
返答はなかったものの，無事アドレス5番として認識された．