From 6b6f20d1bcda30f2ad686f870581fba3731fc38c Mon Sep 17 00:00:00 2001
From: Martin Teichmann <martin.teichmann@xfel.eu>
Date: Thu, 19 Jan 2023 16:13:32 +0100
Subject: [PATCH] fix weird terminals
bus couplers seem to be incomplete
---
ebpfcat/ebpfcat.py | 2 +-
ebpfcat/ethercat.py | 3 +++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/ebpfcat/ebpfcat.py b/ebpfcat/ebpfcat.py
index 941a6a7..1754604 100644
--- a/ebpfcat/ebpfcat.py
+++ b/ebpfcat/ebpfcat.py
@@ -222,7 +222,7 @@ class EBPFTerminal(Terminal):
await super().initialize(relative, absolute)
if (self.compatibility is not None and
(self.vendorId, self.productCode) not in self.compatibility):
- raise RuntimeError(f"Incompatible Terminal: {self.vendorId}:{self.productCode}")
+ raise RuntimeError(f"Incompatible Terminal: {self.vendorId}:{self.productCode} ({relative}, {absolute})")
def allocate(self, packet, readonly):
if self.pdo_in_sz:
diff --git a/ebpfcat/ethercat.py b/ebpfcat/ethercat.py
index 261ee20..3c69e86 100644
--- a/ebpfcat/ethercat.py
+++ b/ebpfcat/ethercat.py
@@ -379,6 +379,9 @@ class Terminal:
self.mbx_lock = Lock()
self.eeprom = await self.read_eeprom()
+ if 41 not in self.eeprom:
+ print('no 41 in eeprom')
+ return
await self.write(0x800, data=0x80) # empty out sync manager
await self.write(0x800, data=self.eeprom[41])
self.mbx_out_off = self.mbx_out_sz = None
--
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