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TDA2EX17EVM: about reducing power consumption

kzy
Prodigy 160 points

Part Number: TDA2EX17EVM
Other Parts Discussed in Thread: TDA2

Hi,

    Our PCBAs heating is serious, how can we reduce power consumption of PCBAs?

In addition, how to check and modify the frequency of GPU and CPU.

thanks

  • 0
    TI__Genius 14680 points

    Hello. 

    Please refer to https://www.ti.com/lit/pdf/sprac22 for a description of power management on the TDA2. In-depth detail on the architecture support is in section 3 of the TRM as well.

    The key to minimizing power is to tune the clocking and power domains on the device for your usage.

    Best regards,

    Dave

  • 0
    TI__Expert 8940 points

    Hi, :

    to check GPU and CPU frequencies, omapconf can be used.

    This is what I get from TDA2x EVM:

    root@dra7xx-evm:~# omapconf show opp
OMAPCONF (rev v1.73-17-g578778b built Thu Dec 28 05:15:12 IST 2017)

HW Platform:
  Generic DRA74X (Flattened Device Tree)
  DRA75X ES2.0 GP Device (STANDARD performance (1.5GHz))
  TPS659038  ES2.2 

SW Build Details:
  Build:
    Version:  _____                    _____           _         _   
  Kernel:
    Version: 4.4.84-g742f84423d
    Author: tiiappadmin@swubn03
    Toolchain: gcc version 5.3.1 20160113 (Linaro GCC 5.3-2016.02)
    Type: #1 SMP PREEMPT
    Date: Thu Dec 28 05:05:59 IST 2017

|-----------------------------------------------------------------------------------|
|                        | Temperature | Voltage | Frequency      | OPerating Point |
|-----------------------------------------------------------------------------------|
| VDD_CORE / VDD_CORE0   | 38C / 100F  | 1.050 V |                | NOM             |
|   L3                   |             |         |  266  MHz      |                 |
|   DMM                  |             |         |  266  MHz      |                 |
|   EMIF1                |             |         |  266  MHz      |                 |
|   EMIF2                |             |         |  266  MHz      |                 |
|     LP-DDR2            |             |         |  532  MHz      |                 |
|   L4                   |             |         |  266  MHz      |                 |
|   IPU1                 |             |         | (2128 MHz) (1) |                 |
|     Cortex-M4 Cores    |             |         | (1064 MHz) (1) |                 |
|   IPU2                 |             |         | (2128 MHz) (1) |                 |
|     Cortex-M4 Cores    |             |         | (1064 MHz) (1) |                 |
|   DSS                  |             |         | (768  MHz) (1) |                 |
|   BB2D                 |             |         | (2128 MHz) (1) |                 |
|                        |             |         |                |                 |
| VDD_MPU / VDD_CORE1    | 38C / 100F  | 1.070 V |                | NOM             |
|   MPU (CPU1 ON)        |             |         |  1000 MHz      |                 |
|                        |             |         |                |                 |
| VDD_GPU / VDD_CORE2    | 39C / 102F  | 1.080 V |                | HIGH            |
|   GPU                  |             |         |  532  MHz      |                 |
|                        |             |         |                |                 |
| VDD_DSPEVE / VDD_CORE3 | 38C / 100F  | 1.080 V |                | HIGH            |
|   DSP1                 |             |         | (750  MHz) (1) |                 |
|   DSP2                 |             |         | (750  MHz) (1) |                 |
|   EVE1                 |             |         | (0    MHz) (1) |                 |
|   EVE2                 |             |         | (0    MHz) (1) |                 |
|                        |             |         |                |                 |
| VDD_IVA / VDD_CORE4    | 40C / 104F  | 1.100 V |                | HIGH            |
|   IVA                  |             |         |  532  MHz      |                 |
|                        |             |         |                |                 |
|-----------------------------------------------------------------------------------|

Notes:
  (1) Module is disabled, rate may not be relevant.

root@dra7xx-evm:~#

  • 0 in reply to Peter Li79
    Prodigy 160 points

    Hi,peter:

    This is what I get from TDA2Ex17:

    root@dra7xx-evm:/opt/vision_sdk# omapconf show opp
    Warning: chip not recognized, running in safe mode (only platform-generic functions allowed).

    Function disabled in safe mode, sorry ...

    root@dra7xx-evm:/opt/vision_sdk#

     

  • 0 in reply to kzy
    TI__Expert 8940 points

    Hi, :

    Here is another way to get SOC clock tree information.

    Firstly, please download clock tree tool from : https://www.ti.com/tool/CLOCKTREETOOL

    After installation, you can find GEL files from the Script folder of the clock-tree-tool installation folder.

    For TDA2E-17, we can use CTT-TDA2Ex_17mm_SR2.1_SR2.0-REG_DUMP.gel.

    About how to run GEL files from Code-Composer-Studio, please refer to :

    https://processors.wiki.ti.com/index.php/GEL

    please be noted:

    1. don't run startup script in the target configuration

    2. for TDA2E-17 devices, please use GEL script with M4 core

    After running the GEL script, we will get clock-tree-information from CCS console prints.

    Then we can copy the prints and save it to an file with .rd1 extension.

    please remove unneeded characters, make it similar as below:

    DeviceName DRA71x_SR2.1_SR2.0
0x4A005560 0x00000002
0x4AE06118 0x00000001
0x4A008920 0x00000001
0x4AE06190 0x00000000
0x4A0052E4 0x0004FD13
0x4AE061C8 0x00000000
0x4AE06174 0x00000000
0x4A009848 0x00030000
0x4AE07888 0x00030000
0x4A005228 0x00000208
0x4A002360 0x00000000
0x4A0051EC 0x00800800
0x4A009770 0x00020001
0x4A009908 0x00030000
0x4A005254 0x00000000
0x4A009858 0x00030000
0x4A00521C 0x00014D04
0x4AE061BC 0x00000000
0x4A009750 0x00020002
0x4A009780 0x00020001
0x4A0097A8 0x00020002
0x4A008778 0x00000001
0x4A009328 0x01040002
0x4A005234 0x00000007
0x4A005244 0x00000201
0x4A0052B8 0x00000204
0x4A005130 0x00000002
0x4A005154 0x00000205
0x4A0098E8 0x00030000
0x4A008E40 0x00030000
0x4A005550 0x00030000
0x4A0093E8 0x00000001
0x4AE07830 0x00000002
0x4A00516C 0x0081F409
0x4A009620 0x00030000
0x4AE06134 0x00000000
0x4A005520 0x01050000
0x4A005580 0x00030000
0x4A008210 0x0000040F
0x4A008E28 0x00030000
0x4AE061A0 0x00000000
0x4A009738 0x00030000
0x4A005248 0x00000003
0x4A009800 0x00030000
0x4A0052C8 0x0000000A
0x4A0052D8 0x00000007
0x4A005140 0x0000023E
0x4A0052E8 0x00000203
0x4A0098A8 0x00030000
0x4A009798 0x00030000
0x4A0051E0 0x00000007
0x4A008C00 0x04030000
0x4AE06108 0x00000000
0x4A0051F0 0x00000001
0x4AE07840 0x01000002
0x4AE06170 0x00000000
0x4A0097D8 0x00030000
0x4A005210 0x00000007
0x4A0098F0 0x00030000
0x4AE07838 0x00000001
0x4A005220 0x00000202
0x4A009868 0x04030000
0x4A008158 0x00000003
0x4A00519C 0x00000000
0x4A0086A0 0x00000000
0x4AE06138 0x00000000
0x4AE061C4 0x00000000
0x4A0051F4 0x00000002
0x4AE06114 0x00000000
0x4A008E50 0x01000001
0x4A009760 0x00020001
0x4A009720 0x00070000
0x4AE061D0 0x00000000
0x4A009878 0x00030000
0x4A00814C 0x00006004
0x4A008200 0x00000007
0x4A005160 0x00000007
0x4A0093B0 0x00000702
0x4A005170 0x00000201
0x4AE061D8 0x00000000
0x4A009120 0x00043F02
0x4A008B30 0x00000001
0x4A0052C0 0x00000228
0x4A0051AC 0x00010A04
0x4AE061A8 0x00000000
0x4A00815C 0x00000204
0x4A005568 0x00030000
0x4A0093D0 0x08000002
0x4A009820 0x00030000
0x4A009220 0x0A000002
0x4A002534 0x00000000
0x4A009020 0x00000001
0x4A0098D0 0x00030000
0x4A0093E0 0x00000001
0x4A009130 0x00070000
0x4A009850 0x00030000
0x4A005158 0x00000204
0x4A005764 0x00000001
0x4A009788 0x00030000
0x4A008160 0x0000000A
0x4AE07878 0x00030000
0x4A009890 0x00030000
0x4A009870 0x00030000
0x4A0097F0 0x00020002
0x4AE06194 0x00000000
0x4A009340 0x00000101
0x4A009028 0x00040001
0x4A0097C4 0x00030000
0x4A009810 0x00000001
0x4A0097B0 0x00030000
0x4A0051DC 0x00000000
0x4A008780 0x00000001
0x4A005144 0x00000005
0x4A008164 0x00000002
0x4A008140 0x00000007
0x4A0097C8 0x00030000
0x4A008150 0x00000804
0x4AE0610C 0x00000000
0x4A0098C8 0x00030000
0x4AE06130 0x00000000
0x4AE06198 0x00000000
0x4AE06168 0x00000000
0x4AE06184 0x00000000
0x4AE06148 0x00000000
0x4A0051A0 0x00000007
0x4A0051B0 0x00000002
0x4AE0619C 0x00000000
0x4A002798 0x00000000
0x4A009740 0x00010002
0x4A00821C 0x00000101
0x4A009808 0x00030000
0x4A009728 0x00030000
0x4AE061CC 0x00000000
0x4A005558 0x00000002
0x4AE0612C 0x00000000
0x4AE06178 0x00000000
0x4A009830 0x00030000
0x4A00818C 0x0401E009
0x4A00820C 0x04004B00
0x4A008F28 0x00020001
0x4A002544 0xF757FDC0
0x4A009898 0x00030000
0x4AE06124 0x00000000
0x4AE061B0 0x00000000
0x4A009840 0x00000002
0x4A009768 0x00020001
0x4A009904 0x00030000
0x4A00515C 0x00000006
0x4AE061B8 0x00000000
0x4A0052BC 0x0000000A
0x4A0093B8 0x00070000
0x4AE061B4 0x00000000
0x4A009778 0x00020001
0x4A005570 0x00030000
0x4A0097A0 0x00030000
0x4AE06110 0x00000002
0x4A009828 0x00020002
0x4AE06164 0x00000000
0x4A008B40 0x00000000
0x4AE06160 0x00000000
0x4AE0615C 0x00000000
0x4AE06158 0x00000000
0x4A0098E0 0x00030000
0x4A009330 0x01040002
0x4A009358 0x00070000
0x4AE0614C 0x00000000
0x4A005420 0x00000001
0x4A0093F0 0x00040101
0x4A008180 0x00000007
0x4A0052B4 0x0000FA04
0x4A008190 0x00000202
0x4A00512C 0x00010A04
0x4A005100 0x00000110
0x4A0097F8 0x00030000
0x4A008F20 0x00060001
0x4AE0618C 0x00000000
0x4A0098A0 0x00030000
0x4A009348 0x00070000
0x4A0098C0 0x00000001
0x4A009790 0x00030000
0x4A009838 0x05030002
0x4A0098B8 0x00030000
0x4A009818 0x00020001
0x4A0097B8 0x00030000
0x4A008728 0x00030000
0x4A0097D0 0x00030000
0x4A008E20 0x00000001
0x4A0098F8 0x00030000
0x4AE07880 0x00030000
0x4A009860 0x00030000
0x4AE061AC 0x00000000
0x4A0098B0 0x00030000
0x4A0052C4 0x00000208
0x4A00513C 0x00000204
0x4AE06120 0x00000000
0x4A009748 0x00030000
0x4AE06144 0x00000000
0x4A005578 0x00000002
0x4A005240 0x00004B01
0x4A009718 0x00070000
0x4A009730 0x00020002
0x4A0052A8 0x00000007
0x4A005120 0x00000007
0x4A0086B0 0x00000000
0x4AE06188 0x00000000
0x4AE061A4 0x00000000
0x4AE06128 0x00000000

  • 0 in reply to Peter Li79
    TI__Expert 8940 points

    Hi, :

    As shown above, after we get the .rd1 file, we can load it into clock tree tool to check the SOC clock information.

    Please let me know if you have any questions.