Microchip AT91SAM9XE
(Redirected from AT91SAM9)
Jump to navigation
Jump to search
The Microchip (formerly Atmel) AT91SAM9XE series are microcontrollers based on the ARM926EJ-S core.
Flash Banks
| Flash Bank | Base address | Size | J-Link Support |
|---|---|---|---|
| Internal Flash | 0x00300000 | Up to 512 KB | 
|
Watchdog Handling
The device has a watchdog that is fed during flash programming.
Device Specific Handling
Connect may fail if invalid data resides in flash at powerup or reset and boot to flash is selected via GPNVM[3] = 1. The later is always set if flash was programmed via JLink. As fix the ERASE pin can be used to erase the entire flash and GPNVM.
Reset
The device uses ARM9 reset, no special handling necessary, like described here. There is a bootloader in ROM that runs after powerup.