Is it possible to make the three burning interfaces of the mainboard MCU, Bluetooth module and serial display screen SD card three-in-one?

QWE4562009

Is it possible to make the three burning interfaces of the mainboard MCU, Bluetooth module and serial display screen SD card three-in-one? [Copy link]

Is it feasible to make the three burning interfaces of the mainboard MCU, Bluetooth module, and serial display screen into three-in-one by burning the SD card of the mainboard?

There is a product with a mainboard MCU, a Bluetooth module attached to the mainboard (serial communication with the mainboard), and a serial display screen (serial communication with the mainboard). Now there is a problem. Sometimes it is necessary to upgrade and update the programs of these three. However, after all the structural parts of the product are closed, they have been glued and cannot be disassembled, or disassembly will cause damage to the shell.

Now embedded says that it has realized the air upgrade of Bluetooth module and mainboard MCU through OTA. However, the program and UI of the serial screen cannot be realized by OTA. (To update the serial screen program, you need to remove the screen from the finished product, then insert the SD card into the SD card slot on the back of the screen, and power it on to update. [The SD card slot is on the main board of the serial screen, not exposed, and cannot be touched from the outside after the product is covered.]

Now embedded systems want to use hardware to burn all three external interfaces. They have come up with a hardware solution, which is to combine the Bluetooth module burning port, the main control MCU burning port of the main board, and the SD card of the serial display screen into one interface, and lead them out to the opening of the shell, so that the main control MCU, Bluetooth module, and serial display screen can be upgraded without removing the shell. Is it possible to integrate the burning ports of these three things into one interface? How to achieve it? Is there a better way?

lugl4313820

There should be a way to solve it. You didn't list the specific chip, so it seems that I can't give you more suggestions.

QWE4562009

lugl4313820 posted on 2024-4-27 11:14 There should be a way to solve it. You didn't list the specific chips, so it seems that I can't give you more suggestions.

GD32F103VGT6 GigaDevice motherboard control chip, GR5513BENDU Bluetooth chip, DWIN serial screen T5L series chip (T5L0, T5L1, T5L2) control chip

QWE4562009

lugl4313820 posted on 2024-4-27 11:14 There should be a way to solve it. You didn't list the specific chips, so it seems that I can't give you more suggestions.

Is it possible to combine the three burning ports together?