CC2340R5: Checking the standby mode

Thank you for your reply.

1) I changed the code as below to check the behavior.

#include <ti/drivers/Power.h>
Power_NotifyObj powerNotifyObject;
static uint8_t PowerNotifyFunction(uint8_t eventType, uint32_t *eventArg, uint32_t *clientArg)
{
  if (eventType == PowerLPF3_ENTERING_STANDBY)
  {
    GPIO_write(CONFIG_GPIO_LED_0, CONFIG_GPIO_LED_OFF);
  }
  else if (eventType == PowerLPF3_AWAKE_STANDBY)
  {
    GPIO_write(CONFIG_GPIO_LED_0, CONFIG_GPIO_LED_ON);
  }

  return Power_NOTIFYDONE;
}

void *mainThread(void *arg0)
{
  uint32_t time = 1;
  GPIO_init();
  GPIO_setConfig(CONFIG_GPIO_LED_0, GPIO_CFG_OUT_STD | GPIO_CFG_OUT_LOW);
  GPIO_write(CONFIG_GPIO_LED_0, CONFIG_GPIO_LED_ON);
  Power_registerNotify(&powerNotifyObject, PowerLPF3_ENTERING_STANDBY | PowerLPF3_AWAKE_STANDBY, (Power_NotifyFxn)PowerNotifyFunction, 0);
  while (1)
  {
    sleep(time);
  }
}

2) After writing to the flash, I unplugged and plugged in the USB cable.
3) I checked the GPIO pin with an oscilloscope, but it didn't change.
What could be wrong?

Best regards,

Hello Manabu Hashimoto,

I hope you are doing well! I opened up an empty example project (7.40 SDK, as FREERTOS) and imported the code you provided above, and I do see the led blinking (indicating that the Power_registerNotify is indeed going off, I also confirmed this in debugging). 

Could you try re-flashing the board, or trying another CC2340R5? 

-I can also provide the .out file of the project on my side if you perfer.

Thanks,
Alex F

Thank you for your reply.

I tried it with another CC2340R5 and it didn't work.
Even writing with UNIFLASH didn't work.
Even creating a new empty project didn't work.

I'm sorry, but could I have the .out file?

Best regards,

Hello Manabu Hashimoto,

Here is my .out file. 

empty_LP_EM_CC2340R5_freertos_ticlang.out

Please see if you are able to flash and confirm the LED blinks! 

Also the version of my CC2340R5 is "REV: A". 

-Were both of the CC2340R5s you tested REV E3s? 

Thanks,
Alex F

Thank you for the .out file.

But unfortunately the LED didn't blink.
GPIO pin is always high.
Just to be sure, I disconnected the LP-XDS110 and LP-EM-CC2340R5 and supplied 3V from the outside, but it didn't work.

>Were both of the CC2340R5s you tested REV E3s?
Yes. Both are Rev:E3.
Is Rev:E3 older than Rev:A?
Is it possible that it won't go into standby because it's old?

Best regards,

Hello Manabu Hashimoto,

Before we continue can we do a quick test? Open up SmartRF Studio 8 and open a CC2340R5 workspace and see if your board is detected; if your board is not detected then that would confirm its a PG1 board which is no longer supported. 

-I just tested a Rev E1 board which is PG1 and is not detected by SmartRF Studio 8.

-The PG1 boards will not "act" correctly when programmed with software meant for PG2. 

You will likely need to purchase new CC2340R5 launchpads to resolve this issue. 

Manabu Hashimoto said:

Is Rev:E3 older than Rev:A?
Is it possible that it won't go into standby because it's old?

-Yes Rev: E3 is older than Rev: A

-If the E3 device is PG1 then yes code meant for PG2 will not work on PG1 as PG1 is no longer supported. 

Thanks,
Alex F

Thank you for your reply.

I don't know how to use SmartRF Studio, so please let me confirm.

> Open up SmartRF Studio 8
The following window was displayed.

> open a CC2340R5 workspace
There was no SmartRF Studio workspace file (*.srfswksp) in the existing Code Composer Studio Workspace folder.

1) When I double-clicked "CC2340R5" in "DEVICE SELECTION", the following window was displayed.

2) I pressed the refresh button to the right of "RF TEST #1".

3) Nothing appeared in the "Target:" list.

Does this mean it won't detect the board?

Best regards,