TMS570LS1224: How to enter sleep mode and wake-up mode through software or instructions

zhang shuai

Part Number: TMS570LS1224

Hello, Ti engineers. I want to know how the chip is configured to enter sleep mode and wake-up mode by software. Is there a relevant function interface or instruction? Or is there a corresponding demo program? thanks

over 3 years ago

0 QJ Wang over 3 years ago

TI__Guru**** 196526 points

Hi Shuai:

Please take a look at my example:

https://git.ti.com/cgit/hercules_examples/hercules_examples/tree/Application/TMS570LS0714PZ_LPMs_Wakeup

This example is developed for LS0714, you can import it to LS1224 platform.

0 zhang shuai over 3 years ago in reply to QJ Wang

Prodigy 15 points

okay，thanks

0 chen ziwen over 3 years ago in reply to QJ Wang

Prodigy 11 points

Hello,Ti engineers.I use your example to config the TMS570LS1224,but when it enter the sleep mode. It showed the following prompt：

CortexR4: Trouble Halting Target CPU: (Error -2064 @ 0x0) Unable to read device status. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 9.4.0.00129)
CortexR4: Error: (Error -1170 @ 0x0) Unable to access the DAP. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 9.4.0.00129)

And I don't know how to wake up it !

0 QJ Wang over 3 years ago in reply to chen ziwen

TI__Guru**** 196526 points

Hi Ziwen,

When the device is in sleep mode, the JTAG emulator is not able to connect to the device.

The device i sleep mode can be waked up through a GIO interrupt, a CAN message, and a SCI message. The my example uses a GIO interrupt to wake up the slept device.

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TMS570LS1224: How to enter sleep mode and wake-up mode through software or instructions