Microchip AVR32 A (UC3A)
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The Microchip (formerly Atmel) AVR32 A (UC3A) series are microcontrollers based on the AVR32 UC RISC processor.
Supported devices
Refer to the supported device list for a full list of all supported AVR32 A (UC3A) family devices, their corresponding names and connection diagrams.
Target interfaces
| Interface | J-Link support | Flasher support |
|---|---|---|
| JTAG |  |
|
Flash banks
| Flash bank | Base address | J-Link support | Flasher support | Loader | |
|---|---|---|---|---|---|
| Name | Bank size | ||||
| Flash Memory | 0x80000000 | |
|
Default | up to 512KB |
| User Page | 0x80800000 | |
|
Default | up to 512Byte |
Limitations
Read operations are not supported for this family.
Troubleshooting
Device ID does not match
At the start of programming, the Flasher tries to connect to the device and to read out the device ID. Each AVR32 A (UC3A) device has a unique ID.
If the device ID is 0x00000000 or 0xFFFFFFFF, this can have several root causes:
- There is a fault in the wiring
- The device is kept in reset by an external reset generator or watchdog
- The supply voltage is insufficient