Is there a uVision example of how to manage boot and application code?
He's what I know to do:
- Boot code generated as normal uVision project with vector table relocated to RAM. - Boot code runs then jumps to app code if app CRC flag found (typically at the end of code space to ensure the App update was complete. - App code offset to higher flash
I use the target memory areas in uVision to determine the App prog space. Then use right click options for source to ensure all code, variables show up in the correct place.
Is this the right way of doing it?
Whilst I'm developing the App code I still need the Boot code to be in the project so that I can JTAG for debugging.
Is there any example using uVision3 or 4?
Thanks a bunch.
Hi again,
The example provides two update methods.
1. Load the bin file onto the SD card via a card reader, then insert the SD card into the target to update firmware
2. Register the target SD card as a removable drive over USB. Target streams bin file from the host onto the SD card then updates from the SD card.
The LPC2148 behaves nicely as a removable drive and the USB protocol is supported by Win, Mac and Linux the same giving good compatibility.
I find it strange given the number of questions regarding bootloading that Keil dont have an app note or example project on how to achieve boot+app using uVision settings?