BIOSPSP for DM6435

Kevin Schuster

Other Parts Discussed in Thread: SYSBIOS

Hello,

I am trying to move from DSPBIOS 5 to SYSBIOS 6 (Platform DM6435). I have been to the same point like in the following thread, that my PSP version was leading to linking errors:

http://e2e.ti.com/support/embedded/tirtos/f/355/p/106702/611544.aspx#611544

Since I was trying to download the the newer PSP version, I found out, that I can't use it, because it is for the C6748 platform. Also some modules were missing inside the package like PAL_OS, so I decided to try to compile the old PSP modules with the SYSBIOS headers. I could generate new LIBs to build a new OUT-file. But now I get a lot of exceptions while running the program.

For example in pal_osSem.c, because the function which calls PAL_osSemCreate() contains as first argument a NULL pointer. The first argument of PAL_osSemCreate() is "name", which will not be checked after NULL. That's why the Memory Protection says Exception:

[C64XP_0] b1a70
A12=0x10807fa8 A13=0x82f24dfd
A14=0x10807f78 A15=0x2
A16=0x0 A17=0x0
A18=0x81394b9c A19=0x0
A20=0x8131d0d0 A21=0x40
A22=0xc0000 A23=0xc0
A24=0x80000 A25=0x813f111c
A26=0x813f1120 A27=0x813f1128
A28=0x813c9ec8 A29=0x42
A30=0x48 A31=0x46c
B0=0x1 B1=0x1
B2=0x10807e54 B3=0x8234f6f0
B4=0x0 B5=0x0
B6=0x0 B7=0x4
B8=0x18 B9=0x10807f48
B10=0x3 B11=0x2c
B12=0x0 B13=0x10807fe8
B14=0x836dc518 B15=0x10807f00
B16=0x823b1a70 B17=0x82f1fec8
B18=0x823b1a70 B19=0x400
B20=0x0 B21=0x10807fe8
B22=0x0 B23=0x2c
B24=0x10807f78 B25=0x2
B26=0x10807fa8 B27=0x82f24dfd
B28=0x82384e50 B29=0x46c
B30=0x1 B31=0x81394a80
NTSR=0x10807f94
ITSR=0x10807fa4
IRP=0x10807fac
SSR=0x10807fb4
AMR=0x10807fa8
RILC=0x10807fbc
ILC=0x1
Exception at 0x8234f758
EFR=0x40000000 NRP=0x8234f758
DMC Exception MPFAR=0x0 MPFSR=0x120
Security violation, Local L1/L2 cache memory Fault
Supervisor Read violation, Fault ID=0x0
ti.sysbios.family.c64p.Exception: line 256: E_exceptionMax: pc = 0x10807f9c, sp = 0x10807f00.
xdc.runtime.Error.raise: terminating execution

So, my questions are:

- Is this problem caused by the PSP_1_10 / SYSBIOS 6 incompatiblity?

- Is there a version of PSP, which I can use for my platform (DM6435)?

- I think it doesn't make sense to modify the PSP modules to make it work. Is there something else what I could do?

Thanks a lot!

over 11 years ago

0 David Friedland over 11 years ago

TI__Mastermind 18320 points

Kevin,

This question appears to be specific to the PSP rather than SYS/BIOS or TI-RTOS, so I went ahead and moved this forum post over to the device forum in hopes that it will get a faster response there.

0 Kevin Schuster over 11 years ago in reply to David Friedland

Expert 1210 points

Okay, so I am still waiting for someone who can give me an answer.

0 Sudhakar Ayyasamy over 11 years ago in reply to Kevin Schuster

TI__Intellectual 1010 points

Kevin,

Unfortunately, there is no PSP for DM6435 at present. But I will let you know if I find any suggestions from PSP experts on what can be done from here. Thank you for your patience.

Sincerely,

Sudhakar Ayyasamy

0 Kevin Schuster over 11 years ago in reply to Sudhakar Ayyasamy

Expert 1210 points

Sudhakar,

can you please ask your experts also, if this unpresent PSP support is leading to an impossible migration from DSP/BIOS 5 to SYS/BIOS 6? This is a very essential question for me, because this is my main task. Did somebody already migrate this constellation (DM6435 from DSP/BIOS 5.42.1.9 to SYS/BIOS 6.37.2.27)?

0 Sudhakar Ayyasamy over 11 years ago in reply to Kevin Schuster

TI__Intellectual 1010 points

Kevin,

Sure, I am still waiting for a response and will let you know once I have an answer. I appreciate your patience. Meanwhile, can you please tell me what DSP/BIOS 5.x based PSP you were previously using?

Thanks.

Sudhakar

0 Sudhakar Ayyasamy over 11 years ago in reply to Sudhakar Ayyasamy

TI__Intellectual 1010 points

Kevin,

This is to confirm that no work has been done by TI on DM6435 for SYSBIOS6, and you should probably stick with DSP/BIOS which is the supported OS for this device.

Thank you.

Sincerely,

Sudhakar Ayyasamy

0 Kevin Schuster over 11 years ago in reply to Sudhakar Ayyasamy

Expert 1210 points

DSP 5.42.1.9

PSP 1.10.3

This are very bad news for me. Because we want to use a higher CGT version (7.4). And as I heard, precondition is a SYS/BIOS 6 version. Right now we are using CGT 7.0.3. We need to use the "struct packing" feature and this is not supported, only in a CGT version > 7.4.

So is there no way of using the CGT 7.4 version for a DM6435, because DSP/BIOS is incompatible with that CGT version and SYS/BIOS is not able to be migrated for DM6435????

0 Rogerio Almeida over 11 years ago in reply to Kevin Schuster

TI__Mastermind 26205 points

Kevin,

I am sorry to inform DM6435 product folder does not show the correct information regarding Ti-RTOS. It should NOT reference TI-RTOS. It should point to DSP/BIOS.

I am working with Internet Marketing team to have this fixed.

So DSP/BIOS is the right OS for this device. Because of this, it looks like the 'struct packing' feature is not supported for DM6435 and will require some investigation to confirm it.

0 Kevin Schuster over 11 years ago in reply to Rogerio Almeida

Expert 1210 points

I think the better question is, is CGT higher 7.3/4 supported for DM6435 and DSP/BIOS 5.42? Because I know already that in CGT 7.4 "struct packing" is included.

0 Sudhakar Ayyasamy over 11 years ago in reply to Kevin Schuster

TI__Intellectual 1010 points

Kevin,

CGT 7.4 should be compatible for DSP/BIOS, so you should be able to use it for DM6435. So, there is no need for SYS/BIOS. Hope this helps.

Thank you.

Sincerely,

Sudhakar Ayyasamy

0 Kevin Schuster over 11 years ago in reply to Sudhakar Ayyasamy

Expert 1210 points

I thought that CGT 7.3 and higher is only working with SYSBIOS, but I can confirm that CGT 7.4.8 is working with DSPBIOS with a DM6435.

Thanks for your help.

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BIOSPSP for DM6435