Content originally posted in LPCWare by dhfcghf6 on Mon Dec 28 01:51:46 MST 2015 Hi,
How to write/update/read data to execute-in-place SPI Flash from the running program?
Our target is LPC-Link2, which has LPC4370(flashless) MCU and one SPI Flash on it. Since LPC4370 is a flashless part, the code is stored in the SPI Flash. So, I think the code for SPI Flash updating should be relocated to, and then run in IRAM.
I'm using another LPC-Link2 as a debugger attached to the target LPC-Link2.
IDE is LPCXpresso 7.7.2.
(Q-1) Is there any working example for LPC-Link2?
I've found some discussions but they seem to be obsolete. For example:
At the bottom of p. 35, there is the following description:
"If you are using a SPIFI FLASH device as a execute-in-place memory for your LPC device, you can’t use the SPIFI library if it’s located in SPIFI FLASH. To use the library in this case, the library needs to be relocated to another memory (like IRAM) and the functions executed from there. The page below describes how to setup and use the library in this type of system. Copyright (C) 2014 NXP Semiconductors. All rights reserved. "
I would like to know where is "The page below" referred from this paragraph. The last line of the paragraph ("Copyright (C) 2014 NXP Semiconductors. All rights reserved.") is linked to Section 4.9 (p. 33) which is blank.
(Q-3) Modification of debug launch configuration necessary with SPIFI Library relocation?
When the SPIFI Library is relocated to IRAM, is it necessary to modify debug launch configuration for LPC-Link2 debugger?
