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SAMC21 Fiches technique(PDF) 19 Page - ATMEL Corporation |
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SAMC21 Fiches technique(HTML) 19 Page - ATMEL Corporation |
19 / 46 page Table 4-9. VCC_SEL Header VCC_SEL header pin Function 1 VCC_P5V0 2 VCC_TARGET 3 VCC_P3V3 4.2.4. VREF Header SAM C21 Xplained Pro has a 6-pin header labeled VREF on the board. This header can be used to select / apply a voltage reference to the ADC, DAC, and SDADC. Jumpers can be used to tie SADC VREF and ADC/DAC VREFT to the kit target voltage from pin 1-3 and 2-4, or external voltages can be applied across pin 3-5 and 4-6. Table 4-10. VREF Header VREF header pin Pin / Net Function 1 VCC_AREF_P3V3_P5V0 Filtered kit target voltage 2 VCC_AREF_P3V3_P5V0 Filtered kit target voltage 3 PA04 SDADC voltage reference 4 PA03 ADC / DAC voltage reference 5 GND Ground 6 GND Ground 4.2.5. DAC Header SAM C21 Xplained Pro has a 2-pin header labeled DAC-OUT on the board that is connected to the DAC output of the ATSAMC21J18A and ground. Table 4-11. DAC Header DAC header pin Pin / Net Function Shared functionality 1 PA02 DAC0 output EXT3 2 GND Ground 4.2.6. Current Measurement Header An angled 1x2, 100mil pin-header marked with MCU current measurement is located at the upper edge of the SAM C21 Xplained Pro. All power to the ATSAMC21J18A is routed through this header. To measure the power consumption of the device remove the jumper and replace it with an ammeter. Caution: Removing the jumper from the pin-header while the kit is powered may cause the ATSAMC21J18A to be powered through its I/O pins. This may cause permanent damage to the device. 4.2.7. Cortex Debug Connector SAM C21 Xplained Pro has a 10-pin 50-mil Cortex ® Debug Connector that can be used to attach external debuggers to the ATSAMC21J18A. Atmel SAM C21 Xplained Pro [USER GUIDE] Atmel-42460D-SAM-C21-Xplained-Pro_User Guide-08/2016 19 |
Numéro de pièce similaire - SAMC21 |
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Description similaire - SAMC21 |
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