BQ79600EVM: Different Versions of TMS570LS12 ?? - "SPI-example" does not run on the "new" boards.

Hi Collin,

Yes the mcu code was wrote for TMS570LS1224 in the LAUNCHXL2-TMS5012. I have forwarded this thread to TMS570 team rather than bq79600 team (which I support) to receive feedback from the TMS570 team regarding which one you may have. This seems to be more of an issue regarding the MCU/CCS.

In terms of other things to check ensure:

• If you are plugging in the MCU directly to the 600 board, you do need to switch 2 resistors (remove R7 and R9 and populate R8 and R10) and follow user guide suggestions for SPI. The board is configured to use UART when using the MCU. Notice these resistors are only when using the headers to plug in the MCU, these resistors don’t have any effect when using the USB2ANY.
• I’ve had issues to communicate when using longer wires to connect the MCU to the 600. You get a much cleaner connection but plugging in the MCU directly to the 600 EVM.

Regards,

Taylor

Hi Taylor,

thanks for the suggestions. Sure all three boards are modified to use SPI, and all of them work.
I can attach all 600 boards to the "old" board and each time I modified something small to see if uploading works.
And everything works fine each time.

I'm using the same wires, same length, same setup, even the same spot on the desk, when I use the "new" boards.

I cannot even reach line 116 of sys_mai.c:   printf("\n\n\nBeginning Program\n"); nor can I suspend the execution to check the code.

the same code on the "old" TMS looks like this:

Hope this help to solve the issues.
Best Regards

Hello,

The R7, R8, R9 and R10 are populated. R10 is a external pull-up resistor to nRST signal. R8 and dR9 are used to calculate the threshold which triggers the nPORRST. 

I'd like to know the reason for removing R7 and R9.

Hi QJ,

The R7, R9 vs R8, R10 topic is related to the BQ79600 boards.
R7 and R9 connect to M_Rx and M_TX and R8 and R10 connect to M_SOMI and M_SIMO.

but this is not the issue right now ;)

I have the same behavior if I try to run the UART-Example.
I cannot run or debug on the "new" boards.

They are physically different and I don't know what to target or what to change, because code-composer doesn't give me an error.
All connection-test are OK and successful.

I was able to flash the program, erasing the demo that was on there by default. So I know that everything went well.
Also, I updated the firmware (now all are on 3.00.00.15) then I encountered, that my "old" board always received COM8 and COM9
while the new boards connect to COM10 and COM11.

"msinfo32" gave these differences (old vs new) see below pic.

PNP Device ID USB\VID_0451&PID_BEF3&MI_00\D&106F64B8&0&0000
PNP Device ID USB\VID_0451&PID_BEF3&MI_00\D&12A151C8&0&0000

All "new" ones have the same IDs and don't run the code at all, not even the 'printf' in the beginning 
(but code composer says running, see last post)

I also made pictures of the labels:
2019 Version works perfectly ... 2020 Versions not at all.

the chips on the Launchpad also have different Labels:

small chip 2019-Version: YF TM4C129 ENCPDTI3 78AYPTW G4 <- working
small chip 2020-Version: YF TM4C129 ENCPDTI3 8CCELZW G4 <- not working 

large chip 2019-Version: TMS570LS 1224CPGEQQ1 YFC-66ADNKW G4 <- working
large chip 2020-Version: M46 L852CPGET YFC-84CC5NW G4 <- not working

Would be great if you could tell me what checkbox I need to change in code-composer to get both up and running.
Best regards, Collin

Hello Collin,

Thanks for your clarification. 

Can you please try a bigger stack size and heap size?

Hi QJ,

unfortunately, there are a lot of broken links on the page you recommended.

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This Page Does Not Exist
The Processors Wiki was removed on January 15, 2021
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could you be more specific for this ti-example-code?

or maybe @Taylor, @Leslie, @BQ796xx-Team someone could provide an updated sample?
maybe one that also targets a higher version of the ARM compiler (> 18.1.2)

Thanks in advance, I will continue to try to get this running.
Best Regards 

Hello Collin,

How about the two new launchpads? Have you make them work?

QJ Wang said:

How about the two new launchpads? Have you make them work?