External flashchip size in various radios

[OZ1FTG]

I have been using forum search. But don't seem to have any luck, in finding the size of the external flash chip used for (DMR-ID)

Does any of you HW Gurus have any idea of the flash size/Chip for various models ?

Ie. The models i have ...

Code: Select all

TYT        MD-UV380     : 
Baofeng    DM-1701      : 

Might be nice if you could "sneak" the flash-id into the page(s) where the cpu id is shown.
Or does that take up too much code space ?

What happens if i load to many DMR-ID's into the radio (fills the flash) will it just "barf" or will it "explode"
Right now i'm just loading the 283 id's

.

[F1RMB]

This information is is the source code:

• 4014 25Q80 8M bits 1M bytes, used in the GD-77
• 4015 25Q16 16M bits 2M bytes, used in the Baofeng DM-1801 ?
• 4017 25Q64 64M bits. Used in Roger's special GD-77 radios modified on the TYT production line
• 4018 25Q128 128M-bits 16M-bytes, used in Daniel's modified GD-77.
• 4018 25Q128 128M bits. MD9600 / MDUV380 / MD380 etc
• 7018 25Q128JV 128M-bits 16M-bytes, KI5GZK's modified GD-77.

[OZ1FTG]

Thank you Daniel

Any hint about the DM-1701 flash size ??

.

[F1RMB]

Thank you Daniel

Any hint about the DM-1701 flash size ??

.

16Mbytes too.

[OZ1FTG]

Thank you Daniel

Any hint about the DM-1701 flash size ??

.

16Mbytes too.

Great

So i can (for now) load the full DMR-ID database, if i wish to ?

.


I looked at the source

Edit: According to this in - MDUV380_firmware/application/source/interfaces/gps.c:

Code: Select all

		default:
			if (voicePromptDataIsLoaded)
			{
				gpsLogFlashStartAddress = LOG_FLASH_1MB_START_ADDRESS;
				gpsLogFlashMemSize = LOG_FLASH_1MB_MEM_SIZE;
			}
			else
			{
				gpsLogFlashStartAddress = DMRID_MEMORY_LOCATION_1;
				gpsLogFlashMemSize = ((1 * 1024 * 1024) - DMRID_MEMORY_LOCATION_1); // last 832k
			}
			break;

It would seem that the code (if MCU not STM32F405xx) uses 1MB default correct ?

And 16MB if there's a "STM32F405xx MCU" in the radio , does the below STMF405xx also "Match" the TYT MCU ?

Code: Select all

#if defined(STM32F405xx)
	gpsLogFlashStartAddress = LOG_FLASH_16MB_START_ADDRESS;
	gpsLogFlashMemSize = LOG_FLASH_16MB_MEM_SIZE;
#else

Then the 16MB detection in the DM-1701 makes sense, as all "STM chips" are matched to 16MB

.

[F1RMB]

Hi,

Great

So i can (for now) load the full DMR-ID database, if i wish to ?

Yes. All STM32 based radios embed a 16Mbytes external Flash that permits to load the whole database.

.

I looked at the source

Edit: According to this in - MDUV380_firmware/application/source/interfaces/gps.c:

Code: Select all

		default:
			if (voicePromptDataIsLoaded)
			{
				gpsLogFlashStartAddress = LOG_FLASH_1MB_START_ADDRESS;
				gpsLogFlashMemSize = LOG_FLASH_1MB_MEM_SIZE;
			}
			else
			{
				gpsLogFlashStartAddress = DMRID_MEMORY_LOCATION_1;
				gpsLogFlashMemSize = ((1 * 1024 * 1024) - DMRID_MEMORY_LOCATION_1); // last 832k
			}
			break;

It would seem that the code (if MCU not STM32F405xx) uses 1MB default correct ?

And 16MB if there's a "STM32F405xx MCU" in the radio , does the below STMF405xx also "Match" the TYT MCU ?

Code: Select all

#if defined(STM32F405xx)
	gpsLogFlashStartAddress = LOG_FLASH_16MB_START_ADDRESS;
	gpsLogFlashMemSize = LOG_FLASH_16MB_MEM_SIZE;
#else

Then the 16MB detection in the DM-1701 makes sense, as all "STM chips" are matched to 16MB

.

The firmware detects the fitted Flash chip on MK22 platform.
The code you're referring to is related to the NMEA GPS logging, and it deals with the Flash type to set the location and limits for that. Of course, if the Flash is 1Mbytes, there is no room for this so it uses the DMRId storage space for this (288k), or even a bit larger if the voice prompts are not there (832k).

Cheers.
---
Daniel

[OZ1FTG]

Thank you for an excellent explanation

.