topic Re: LPC54018JxM Program flash using UART in LPC Microcontrollers

LPC54018JxM Program flash using UART

mohd_ — Thu, 06 Jan 2022 00:33:16 GMT

Hi,

Is it possible to program the flash on LPC54018JxM using UART?

As I know, there is no command for Copy RAM to Flash in UART ISP commands, is there any other way to program the flash using UART? I tried using the Write to RAM command, but the code will disappear upon reset.

Thank you.

Re: LPC54018JxM Program flash using UART

Alice_Yang — Thu, 06 Jan 2022 08:48:49 GMT

Hello mohd_,

You can using blhost with UART isp port to program, detail steps please refer to:

https://community.nxp.com/t5/LPC-Microcontrollers-Knowledge/Use-blhost-to-program-erase-LPC540xxM-LPC54S0xxM-flash/ta-p/1105629

Alice

Re: LPC54018JxM Program flash using UART

mohd_ — Fri, 07 Jan 2022 07:48:03 GMT

Hi @Alice_Yang ,

Thank you for the information.

For anyone who want to program lpc54018 flash using UART, you can try following ways;

Program the flashloader.bin to lpc54018 RAM using UART ISP command.
Close the serial terminal then open command prompt to use blhost.
Use below blhost commands to program the flash. Replace COM7 with your serial port name.
- blhost -p COM7 -- get-property 12
- blhost -p COM7 -- fill-memory 0x0000b000 4 0xc0000004
- blhost -p COM7 -- configure-memory 0xa 0x0000b000
- blhost -p COM7 -- get-property 25 0xa
- blhost -p COM7 -t 100000 -- flash-erase-region 0x10000000 0x100000
- blhost -p COM7 -t 100000 -- write-memory 0x10000000 led_blinky.bin
- blhost -p COM7 -- reset
Done!

Best Regards.