Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

How one program can download and run another.

I want to be able to run a program in high ram memory which reads the data for another program over a usb link and stores this data in low memory. Once all the data has been received and validated t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Hi Dunxm,

Everything Scott says is exactly right but I would add a little bit.

After disabling interrupts (globally) and before overlaying the old exception area with the new exception area you should disable all interrupts at the device level too, also then remove any pending interrupts from the devices. This stops you getting interrupts when the new program enables interrupts (globally) but before your code has installed the device isr for them.

Banx.