topic Re: LPC18S50. How to load an empty external flash in LPC Microcontrollers

LPC18S50. How to load an empty external flash

angelmelendez — Tue, 20 Mar 2018 19:23:25 GMT

How can be an empty external flash loaded in circuit

Re: LPC18S50. How to load an empty external flash

victorjimenez — Wed, 21 Mar 2018 17:23:33 GMT

Hello Angel!

Could you please provide more information of what you are trying to do. Are you trying to erase the external flash?

Have a great day!

Victor

Re: LPC18S50. How to load an empty external flash

angelmelendez — Wed, 21 Mar 2018 21:01:03 GMT

Dear Victor.

I'm worried about how to load the programs into the flash memories (SPI

Flash and/or Parallel NOR Flash) during the manufacturing process.

I think that this could be done using Flash Magic and/or Ulink and MDK

Keil. Is this right?.

I think that for using Flash Magic, I should use USART0. But USART0 pines

are ocupied for Address signal. I prefer to keep the integrity of the

address bus for better electrical performance. Then, is it better to use

Ulink+Keil MDK?.

Thanks. Best regards.

Angel

2018-03-21 18:24 GMT+01:00 victorjimenez <admin@community.nxp.com>:

NXP Community
<https://community.freescale.com/resources/statics/1000/35400-NXP-Community-Email-banner-600x75.jpg>
Re: LPC18S50. How to load an empty external flash
reply from Victor Jimenez
<https://community.nxp.com/people/victorjimenez?et=watches.email.thread>
in LPC - View the full discussion
<https://community.nxp.com/message/997861?commentID=997861&et=watches.email.thread#comment-997861>

Re: LPC18S50. How to load an empty external flash

victorjimenez — Mon, 26 Mar 2018 16:34:03 GMT

Hello Angel,

According to the reference manual of the LPC18S50 (UM10430) you can also the use the USART3 for using flash magic, please reference chapter 5 page 56 section FEATURES.

If you want to load the programs from the JTAG instead of bootloader you can do this using the command line of LPCXpresso/MCUXpresso. Please refer to the next post to see how to do this:

Using the command line flash programming tool

Also, the option you mentioned Ulink + Keil MDK is a good choice, I just wanted to give you more options!

Hope it helps!

Victor Jimenez.

Re: LPC18S50. How to load an empty external flash

angelmelendez — Mon, 26 Mar 2018 20:04:52 GMT

Hello Victor,

Thanks once again.

I'll try all your recommendations.

Then, I'll decide what of them will be the most suitable for developing and for manufacturing.

Best regards.

Angel Melendez

Re: LPC18S50. How to load an empty external flash

lpcxpresso_supp — Wed, 28 Mar 2018 12:14:28 GMT

Another alternative : use the the LPCScrypt utility to download directly into flash via USB - http://www.nxp.com/lpcscrypt

Regards,

MCUXpresso IDE Support