Incorrect data writing to ballistic gel

[Wr1nGl]

In the master branch, there seems to be incorrect implementation of "write_pattern" function in "ballisticgel.py". It is writing only 1024 chunks of data instead of the full amount. There is correct implementation in the older branches (e.g. https://github.com/newaetech/ChipSHOUTER-ballisticgel/tree/e7707a56498fd23d0475f18b7262f31c837e04c8 ).

[alex-dewar]

Hi,

Do you observe incorrect behaviour here? That function should still write the entire buffer, it just does the entire buffer in one transaction instead of breaking it into 1024 byte chunks. The only issue I can see is that this long write might time out.

[Wr1nGl]

Hi,

sorry it took me so long to get back to the issue. I have loaded the master version and double checked it.

Steps I did:

1. connect to the ballistic gel
2. load data using raw_test_setup()
3. waited for few seconds to make sure all the data are loaded
4. read the data just so i have visual comparison (optional)
5. run edited raw_test_compare() - i have tried to repair only byte part not showing properly, i didnt touch the bit parts

The edit i have made was replacing the print output:
print("Byte errors: %d (of %d). Bit errors: %d set (0 --> 1), %d reset (1 --> 0)"%(errorcnt, test_len, total_set_errors, total_reset_errors))
with:
total_byte_errors = np.count_nonzero(errorlist)
print("Byte errors: %d (of %d). Bit errors: %d set (0 --> 1), %d reset (1 --> 0)"%(total_byte_errors, test_len, total_set_errors, total_reset_errors))

Even without fault injected i am getting bit errors reported (set and reset) - which makes sense since the data I wanted to load and data I read are different.