4.6 Kit Modifications
The SAM R34 Xplained Pro Evaluation Kit contains several resistors that can be used to disconnect I/O pins of the SAM R34 SiP from connectors and on-board ICs, and to disconnect power signals.
| Designator | Value | From | To | Comment |
|---|---|---|---|---|
| R322 | 0R | EDBG SWDIO | PA31 SWDIO | Debug interface from the EDBG to the SAM R34 |
| R323 | 0R | EDBG SWDCLK | PA30 SWCLK | |
| R324 | 0R | EDBG TARGET RESET | TARGET MCU RESET | |
| R310 | 0R | EDBG SPI SS | PA27 GPIO | EDBG CDC and DGI interfaces to the SAM R34 |
| R311 | 0R | EDBG SPI SCK | PB23 SPI SCK | |
| R312 | 0R | EDBG SPI MOSI | PB22 SPI MOSI | |
| R313 | 0R | EDBG SPI MISO | PB02 SPI MISO | |
| R314 | 0R | EDBG DGI SDA | PA16 I2C SDA | |
| R315 | 0R | EDBG DGI SCL | PA17 I2C SCL | |
| R316 | 0R | EDBG CDC RX | PA04 UART TX | |
| R317 | 0R | EDBG CDC TX | PA05 UART RX | |
| R318 | 0R | EDBG DGI_GPIO0 | PA08 GPIO | |
| R319 | 0R | EDBG DGI_GPIO1 | PA09 GPIO | |
| R320 | 0R | EDBG DGI_GPIO2 | PA12 GPIO | |
| R321 | 0R | EDBG DGI_GPIO3 | PA14 GPIO | |
| R229 | 0R | TARGET VUSB DETECT | PA07 ADC7 | Used to detect if a USB cable is connected to the TARGET USB connector. |
| R109 | 47K | VCC_P3V3_CM_IN | TARGET VOLTAGE | Used in the voltage divider network to detect the target voltage of 3.3V. |
| R325 | 0R | RESET | TARGET RESET SENSE | Reset sense signal to EDBG, used to detect external resets. |