From d9d5f67f202129d724959e8105b0a307d10f7c6f Mon Sep 17 00:00:00 2001
From: kruger <kruger@astron.nl>
Date: Mon, 14 Mar 2022 15:46:28 +0100
Subject: [PATCH] i2C retry for HBA BF coefficients
---
i2cserv/hba1.py | 11 +++++++----
i2cserv/i2c.py | 6 +++++-
2 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/i2cserv/hba1.py b/i2cserv/hba1.py
index 152c6a5..25b13af 100644
--- a/i2cserv/hba1.py
+++ b/i2cserv/hba1.py
@@ -57,11 +57,14 @@ class hba1(hwdev):
logging.debug("SetHba addr=0x%x reg=0x%x",addr,reg)
I2Ccallback=self.conf['parentcls'].i2csetget
I2Ccallback(0x40,[0],read=1)#wakeup, do nothing
- #sleep(0.01)
- I2Ccallback(addr,data[:16],reg=reg)
+# sleep(0.005)
+ retry=0;
+ while not(I2Ccallback(addr,data[:16],reg=reg)) and (retry<2): retry+=1;
+ if retry==2: logging.warn("uC BF comm error");
if len(data)>16:
- #sleep(0.01)
- I2Ccallback(addr,data[16:],reg=reg+16)
+# sleep(0.005)
+ while not(I2Ccallback(addr,data[16:],reg=reg+16)) and (retry<2): retry+=1;
+ if retry>=2: logging.warn("uC BF comm error2");
#sleep(0.01)
return True
diff --git a/i2cserv/i2c.py b/i2cserv/i2c.py
index 7376df4..a902c7f 100644
--- a/i2cserv/i2c.py
+++ b/i2cserv/i2c.py
@@ -41,7 +41,11 @@ class i2c(hwdev):
bus.iaddr_bytes=0
reg=0;
logging.debug(str(("I2C set",addr,reg,bytes(bytearray(data)),read)))
- bus.ioctl_write(reg,bytes(bytearray(data)))
+ TXlen=bus.ioctl_write(reg,bytes(bytearray(data)))
+ if TXlen<0:
+ bus.close;
+ return False;
+ if (TXlen!=len(data)): logging.warn("I2C write error %i/%i"%(TXlen,len(data)))
bus.close()
return True;
except:
--
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