Update of MAX32664 version A internal system

RE: Update of MAX32664 version A internal system

Jared — Mon, 26 Feb 2024 13:26:41 GMT

Hi,

[quote user="MartinaMonte"]But, since I need to update the firmware of the sensor hub to use my code, I am trying doing it by using MAX32630FTHR. Doing it, following the steps I described before, I do not get a response from the sensor hub: In particular, this is what I have in the command prompt[/quote]

I struggle to see how this is related to the onboard nRF52. As far as I see, you're trying to update the sensor hub by using a third party evaluation board? Where does the nRF52 that is connected to the sensor hub come into play here? Does it act as a bridge between the evaluation board and the sensor hub?

It might seem trivial to you, but remember that most of the products you mention are third party products we don't really have any experience with. A more detailed explanation would be appreciated.

A sketch or similar would help..

regards

Jared

RE: Update of MAX32664 version A internal system

MartinaMonte — Fri, 23 Feb 2024 16:02:53 GMT

Moreover, I tried, by connecting nrf52-dk to my custom pcb via SWD: to set high / low mfio/rstn and it does it properly; and also to use twi_scanner example and it finds properly the sensors. So my deduction was that everything is properly connected and working

RE: Update of MAX32664 version A internal system

MartinaMonte — Fri, 23 Feb 2024 15:59:40 GMT

Hi Jared,

SLAVE_SCL is connected to pin 24, SLAVE_SDA to 23 as from datasheet. Moreover, there are pull up resistors (4.7 kOhm).

The error comes from:
   ######### Bootloader #########
   def bootloader_single_download(self, reset):
       print('\nDownloading msbl file')

       if self.enter_bootloader_mode() != 0:
           print('Entering bootloader mode failed')
           return

   def enter_bootloader_mode(self):
       ret = self.send_str_cmd('bootldr\n')
       if ret[0] != 0:
           print('Unable to enter bootloader mode... err: ' + str(ret[0]))
       return ret[0]

   def send_str_cmd(self, cmd):
       length = 0;
       self.ser.write(cmd.encode())
       return self.parse_response(cmd.encode())

RE: Update of MAX32664 version A internal system

Jared — Fri, 23 Feb 2024 15:06:44 GMT

Hi,

"unable to enter bootloader mode, err... -1" is returned from where in the code?

[quote user="MartinaMonte"]The lines are properly powered (I measure 1.8V)[/quote]

I meant that you should double check that the SCLK and SDA lines are correct,

regards

Jared

RE: Update of MAX32664 version A internal system

MartinaMonte — Fri, 23 Feb 2024 12:25:27 GMT

I am using nRF5_SDK_17.1.0_ddde560. When i download (via SWD from nrf52DK to my custom board) the code (written in SES) to enter bootloader (raising and lowering MFIO/RSTN), it works: I see the LED turning on / off according to the MAX32664 answer.

But, since I need to update the firmware of the sensor hub to use my code, I am trying doing it by using MAX32630FTHR. Doing it, following the steps I described before, I do not get a response from the sensor hub: In particular, this is what I have in the command prompt

The lines are properly powered (I measure 1.8V)

RE: Update of MAX32664 version A internal system

Jared — Fri, 23 Feb 2024 12:14:35 GMT

Hi,

Which SDK version are you using?

The issue isn't very clear but is it that the nRF52 is not sending the expected data over I2C? Have you tried probing the data and clock lines and verified?

regards

Jared