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Summary of Contents for Laird Vela IF820
- Page 1 Version 1.0...
- Page 2 Version Date Notes Contributors Approver Louis Chang Rikki Horrigan 19 Sept 2023 Initial Release Jonathan Kaye Ryan Erickson Mark Duncombe https://www.lairdconnect.com/vela-if820-series https://www.lairdconnect.com/contact © Copyright 2023 Laird Connectivity. All Rights Reserved...
- Page 3 Purpose and Scope ..............................4 Related Documents ..............................4 Kit Contents ................................4 Vela IF820 Development Kit Specifications ......................... 5 Vela IF820 Development Kit – Main Development Board ....................6 Key Features ................................6 Hardware Overview ................................7 Block Diagram ................................7 Understanding the Development Board ........................
- Page 4 The purpose of this document is to provide details regarding the setup and configuration of the Vela IF820 mounted on the development board. This document covers a description and design examples of the Vela IF820 DVK board and its features.
- Page 5 1 dBi peak gain by integrated antenna variant ▪ 2.3dBi peak gain supported by attached external antenna variant ▪ WakeUp signals BT_HOST_WAKE ▪ BT_DEV_WAKE Dimension 72.5 mm x 50 mm x 14.2 mm https://www.lairdconnect.com/vela-if820-series https://www.lairdconnect.com/contact © Copyright 2023 Laird Connectivity. All Rights Reserved...
- Page 6 ▪ Supports module VDDIO at 3v3 ▪ Two tri-color with white LEDs for user interaction, one connected to the Vela IF820 and the other to the RP2040 ▪ One color LED connected to the Vela IF820 for user programming. ▪...
- Page 7 Figure 1 shows the block diagram of the development board. Figure 1: Vela IF820 series module development board block diagram https://www.lairdconnect.com/vela-if820-series https://www.lairdconnect.com/contact © Copyright 2023 Laird Connectivity. All Rights Reserved...
- Page 8 Figure 2: Vela IF820 development board with chip antenna variant Figure 3: Vela IF820 development board with MHF4 connector variant https://www.lairdconnect.com/vela-if820-series https://www.lairdconnect.com/contact © Copyright 2023 Laird Connectivity. All Rights Reserved...
- Page 9 1” dual row header pins for connecting the Vela IF820 IO pins to on DVK peripherals J1,J2,J3 Button for user interaction with Vela IF820 Recovery button, used in combination with the reset button to ensure user can program the Vela IF820 over the HCI UART. SW301...
- Page 10 DVK peripherals as needed. Since there are two types of Vela IF820 (Antenna type and MHF4 type) modules, two DVK variants are required in order to match two different Vela IF 820 modules.
- Page 11 MikroE socket CYW20820) GPIO (P0 in for user J3.9 CYW20820) button (SW1) J3.11 CP_ROLE RP2040 J3.13 LP_MODE RP2040 Note 1: Required for dropping an SPP connection in EZ-Serial transparent parse mode. https://www.lairdconnect.com/vela-if820-series https://www.lairdconnect.com/contact © Copyright 2023 Laird Connectivity. All Rights Reserved...
- Page 12 Figure 4: Vela IF820 development board power architecture The Vela IF820 radio module requires one primary power source that supply all other internal power rails – VBAT and VDDIO. The VDDIO source provides power for the radio IO portions, and the VBAT source provides power for all other radio needs.
- Page 13 Programming firmware can also be done via the SWD interface. Use a Tag-Connect cable to connect with the onboard TC2030 footprint. The SWD interface can then be used to program or debug the RP2040. https://www.lairdconnect.com/vela-if820-series https://www.lairdconnect.com/contact © Copyright 2023 Laird Connectivity. All Rights Reserved...
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Page 14: User Button
Figure 7: TC2030 footprint One push button is reserved for user interaction with Vela IF820. It connects one of the pins of the Vela IF820, mapping to P0 of the CY20820 chipset. Pressing this button grounds this pin. Please see the GPIO pin numbers of the different Vela IF820... -
Page 15: Tri-Color Led
One tri-color LED is reserved for user programming with the Vela IF820. It connects to one of the pins of the Vela IF820 module pins, mapping to P4 of the CYW20820 chipset. Please see the GPIO pin in different variants in the table below. - Page 16 A Qwiic connector connected to Vela IF820 is reserved for user programming. Mapping table is shown as below. Qwiic Header Connector Connector.pin Note defined function P202.1 P202.2 VDDIO 3.3V by default jumper should be installed in MHF4 variant : J2 pin 13-14 P202.3...
- Page 17 A MikroE connector is connected to Vela IF820 and is reserved for user programming. Mapping table is shown as below. Table 5: J202 Pin Map MikroE pre- Header Connector Connector.pin Note defined function Jumper should be installed in: ▪ J202.1...
- Page 18 Please note P-UART function of MikroE connector is workable after hardware version 4.0, checked by reviewing silkscreen on the backside of the DVK, the previous HW version is not functional for this feature. Figure 13: Version illustration https://www.lairdconnect.com/vela-if820-series https://www.lairdconnect.com/contact © Copyright 2023 Laird Connectivity. All Rights Reserved...
- Page 19 Default P-UART connection of DVK is to Vela IF820 and RP2040, by the solder bridge as shown in the Figure 14. Once user wants to use P-UART function working with MikroE device, please cut the solder bridge between Vela IF820 and RP2040 for any interference prevented. Figure 14: Solder bridge connects Vela IF820 and RP2040 The Vela IF820 development board provides a pin header (J9) to conduct current measurements.
- Page 20 The Vela IF820 development board reserves J2 pins 1,3,5,7,9, and 11 to enable USB communication via an external USB to TTL-232 (3.3V) cable. Figure 16 demonstrates how to connect the cable to the J2 header. Figure 16: Using USB to TTL-232 (3.3V) cable to connect to Vela IF820 directly Figure 17 shows a real example of using a USB to TTL-232 (3.3V) cable to connect a laptop to the IF820.
- Page 21 Table 7 shows how Vela IF820 HCI UART maps to on board pin header, as well as the suggested TTL-232R cable pin. Table 7: USB mapping pin number Vela IF820 TTL-232R cable TTL-232R cable color J2.1 Black J2.3 BT_UART_RTS HOST_CTS Brown J2.5...
- Page 22 Table 8 shows how Vela IF820 PUART for integrated antenna variant maps to on board pin header, and also TTL-232R cable pin suggested. Table 8: UART mapping, integrated antenna board Pin Number Vela IF820 PUART TTL-232R cable TTL-232R cable color J2.1...
- Page 23 Infineon-CYW20820-DataSheet-v01_00-EN, 002-24743 Rev. *G, Cypress Semiconductor Corporation. rp2040-datasheet, Raspberry Pi Ltd FT232R, USB UART IC datasheet, FT_000053, Future Technology Devices International Limited. https://www.lairdconnect.com/vela-if820-series https://www.lairdconnect.com/contact © Copyright 2023 Laird Connectivity. All Rights Reserved...
- Page 24 Connectivity materials or products for any specific or general uses. Laird Connectivity or any of its affiliates or agents shall not be liable for incidental or consequential damages of any kind. All Laird Connectivity products are sold pursuant to the Laird Connectivity Terms and Conditions of Sale in effect from time to time, a copy of which will be furnished upon request.
- Page 25 Connectivity or any of its affiliates or agents shall not be liable for incidental or consequential damages of any kind. All Laird Connectivity products are sold pursuant to the Laird Connectivity Terms and Conditions of Sale in effect from time to time, a copy of which will be furnished upon request. Nothing herein provides a license under any Laird Connectivity or any third-party intellectual property right.
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