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Part Number: BOOSTXL-BATPAKMKII
Tool/software: Code Composer Studio
I am using the MKII battery booster pack with a MSP432 Launchpad (red). I am running Code Composer Studio v7.4 on an iMac. I shorted JP6 since the battery is always attached and will be built into my embedded device. When run as per the instructions, the serial terminal shows the information the example provides, updating the battery data about once per second for awhile, about a minute or so, and then errors out. In other words, "Error Reading Design Capacity" etc. on every line, clearly updating once per second with all errors. If I go through several reset-button/toggle switch gyrations, it will start showing battery data again. It errors out again in a minute or so.
The point I am making here is that it shows this behavior with only the hardware and software provided by TI. How do I get it to keep doing its job all day in my actual embedded device?
Thanks for your help.
In reply to Bob Landers:
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In reply to Holly Wallace:
Hi Holly, I am currently doing a project using BOOSTXL-BATPAKMKII, here is what I found that may help you. 1. Use the example program as base from the latest SDK. 2. I found a bug in the example program from code review. I need to verify it further. Specifically this code line below. /* Write new taper rate */ if (!BQ27441_command(BLOCK_DATA_CHECKSUM, new_chksum, 1000)) 3. You need to follow the flowchart in updating the gauge configuration parameters that can be found at "Quickstart Guide for BQ27441-G1". It is slightly different from the example program. But, I recommend to follow it as is because I have seen open source code that used the same guide. 4. Lastly you need to put a 10k ohm resistor across R9 as recommended by TI Engineer here. This is for the charging issue. -kel
P.S. Actually after cross referencing with the BQ27441-G1 Technical Reference doc, A lot of the code is wrong. The BQ27441-G1 need to be unsealed in order for some registers to be written. But, the example program did not put the unseal and seal code.
post edited . . .
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In reply to Markel Robregado:
Thank you for your thoughtful reply. Ultimately, it turned out that the battery booster pack example works on the Windows machine (after I gave it another squeeze to seat the headers on the pins properly), but not on the Mac version of CCS v8. There, it reports errors after awhile, as per my original post.
I'm glad you replied because I am sure the suggestions you have provided will help other people who come looking for answers to their problems with the battery fuel gauge. We, on the other hand, have decided not to use the BQ27441-G1 for our project after all.
Thanks again for all your help.
If your taking too long to make the BQ27441-G1 work, then it is good decision to move on to other options.
Anyway, for my project I resolved all issues for the BOOSTXL-BATPAKMKII. The BQ27441 code library in this project might be of some use to you in the future.
For your Mac version of CCSV8 problem I suggest you ask help at CCS forum.
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