LPC1765 ISP downloading problem

[jeremybonhomme]

Hello,

We have two board, one with a IMX6 and another one with LPC1765 MCU. We would like to download MCU firmware through ISP mode. MCU firmware is in two parts : an application software (soft A) and a configuration software (soft B). So we have two .hex to download in the MCU at different address (Soft A: sector 0 to sector 18 / Soft B: sector 8 only)

Downloading of softA is always ok. (lpc21isp  -control -try10 softA.HEX /dev/COM_SCREEN 115200 14746)

Downloading of softB is ok only at 19200 bauds with debug3 option. Other case cause a reboot of imx6. (lpc21isp -debug3 -control -try10 softB.HEX /dev/COM_SCREEN 19200 14746)

At 19200, if debug3 option isn’t use, you can notice that the sector 8 is not programmed.

lpc21isp version 1.83

File /opt/centralp/PR3289_V1.1.0_CFG.HEX:

        loaded...

        converted to binary format...

        image size : 36864

Image size : 36864

Used GPIO: C_GPIO_RESET=2, C_GPIO_ISP=205

Synchronizing (ESC to abort). OK

Read bootcode version: 4.2.0

Read part ID: LPC1765, 256 kiB ROM / 64 kiB SRAM (0x26013733)

Will start programming at Sector 1 if possible, and conclude with Sector 0 to ensure that checksum is written last.

Skip erasing sector 0...

Sector 1: Skipped

Sector 0: Skipped

Download Finished... taking 0 seconds

Now launching the brand new code

Anyone has a idea ?

Regards

Jeremy

[jeremyzhou]

Hi Jeremy Bonhomme,

Thank you for your interest in NXP Semiconductor products and
for the opportunity to serve you.
I was a bit confused with these different addresses of softA and softB, softA occupies the sector 0~18, definitely, the sector 8 will be contained. So I'm curious how you assign the softB to the sector 8.
About your question, whether it's available to combine these two hex files prior to programming, hence it just needs an only once program.

Have a great day,
TIC

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