Firmware upgrade

By kevin jose minj , 21 March, 2023
Forums
General discussion

How to upgrade firmware through python code?

file = open("firmware_iskra.bin", "rb")
reply = GXReplyData()
ImageTransfer = GXDLMSImageTransfer()
imageBlockSize = self.read(ImageTransfer, 2)
fw_filename = "firmware_iskra.bin"
imageIdentifier = "firmware_iskra"
forImageSize = int(os.path.getsize(fw_filename))
data=ImageTransfer.imageTransferInitiate(self.client,imageIdentifier,forImageSize)
reply = GXReplyData()
init_val = self.readDataBlock(data, reply)
ImageTransfer.imageBlockValue = file.read()
ImageTransfer.imageBlockCount = None
frames = ImageTransfer.imageBlockTransfer(self.client,
ImageTransfer.imageBlockValue, ImageTransfer.imageBlockCount)

reader.readDataBlock(frames,reply)

This code return access error: unknown error

What is the issue causing with this I tried in GuruxDLMSDirector its working fine while select the file and click update

Kurumi

3 years 2 months ago

Hi,

Check first that the image identifier is correct. Some meters accept only specific names.
Can you transfer all the blocks for the meter or are you getting the exception right after imageTransferInitiate?

BR,
Mikko

data=ImageTransfer.imageTransferInitiate(self.client,imageIdentifier,forImageSize)
self.readDataBlock(data, reply)

when I am try to read this data issue is occuring and I passed active firmware identifier what I got from GuruxDLMS director now its showing
Access Error : Device reports a unmatched type.

kevin jose minj

3 years ago

Hi Mikko,

While I am updating firmware I am getting the error below

byte must be in range(0, 256)

In this line of code
frames = ImageTransfer.imageBlockTransfer(self.client,ImageTransfer.imageBlockValue, ImageTransfer.imageBlockCount)