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AM18x + WL1271
The design and software discussed on this site is available for download, but is no longer being actively developed and maintained. This wiki is in maintenance mode and the software is supported on Sitara E2E forum
General Platform Description
The development platform is primarily based on the AM1808 kit by Mistral. An extension card provided by Mistral serves as a wireless connectivity add-on.
- Key Properties
- Platform combines a AM1808 and a WL1271 connectivity solution
- AM1808 are key catalog applications processor platforms, supported worldwide by TI Sales
- Wireless Connectivity Card which incorporates a WiLink 6 based module
- Supported Technologies: WLAN and Bluetooth support
- Supported OS: Linux
General HW Description and Block Diagram
The WL1271 connectivity solution is available in the form of a daughter board.This board connects to the AM1808 board. This board will be interfaced to the EVM through the Expansion connectors J29 and J30. Generally the daughter board is plugged to the connector J29 of the AM1808 EVM and the BT signals are connected using the FRC cable. The daughter board uses 5V power available on the EVM to generate the required VBAT (3.6V) and VIO (1.8V) for the WL1271 module.
Figure: Block diagram showing the interconnection between WLAN connectivity board and the AM1808 EVM board.
Connectivity Expansion Card Description
This daughter board contains an LSR module which is based on a WL1271 Wireless LAN and a Bluetooth combo chip.
The wireless LAN and Bluetooth share one antenna which is mounted directly on the connectivity board.
1271 Connectivity Expansion Card Pin Assignment
The following table shows the pin assignment from the connectivity expansion card to the Main EVM:
|Signal type||Signal Name on the WL1271 module||Connection to AM1808 EVM Board||Mistral AM1808 Connection|
|Bluetooth - Host I/F||BT_FUNCT5||
|Bluetooth - Host I/F||BT_EN||GPIO on AM1808.||ACLKR / GP0|
|Bluetooth - Host I/F;||HCI_TX||UART lines on the AM1808.||UART1_RXD|
|Bluetooth - Host I/F||HCI_RX||UART lines on the AM1808||UART1_TXD|
|Bluetooth - Host I/F||HCI_CTS||UART lines on the AM1808||UART1_RTS|
|Bluetooth - Host I/F||HCI_RTS||UART lines on the AM1808||UART1_CTS|
|Bluetooth - Host I/F||BT_FUNCT2||Optional signal that can be connected to an AM1808 GPIO||AXR8 /CLKS1 /ECAP1_APWM1 /GP0|
|Bluetooth - Host I/F||AUD_IN||McBSP on the AM1808||DX1|
|Bluetooth - Host I/F||AUD_OUT||McBSP on the AM1808||DR1|
|Bluetooth - Host I/F||AUD_CLK||McBSP on the AM1808||CLKR1|
|Bluetooth - Host I/F||AUD_FSYNC||McBSP on the AM1808||FSR1|
|Bluetooth - Host I/F||BT_FUNCT4||Optional signal||No Connect|
|WLAN Host I/F||WL_EN||AM1808 GPIO||UHPI_HHWIL /UPP_CH1_ENABLE /GP6|
|WLAN Host I/F||SDIO_CMD||AM1808 MMC/SDIO_CMD||MMCSD1_CMD|
|WLAN Host I/F||SDIO_D0||AM1808 MMC/SDIO_D0||MMCSD1_DAT|
|WLAN Host I/F||SDIO_CLK||AM1808MMC/SDIO_CLK||MMCSD1_CLK|
|WLAN Host I/F||SDIO_D3||AM1808 MMC/SDIO_D3||MMCSD1_DAT|
|WLAN Host I/F||SDIO_D1||AM1808 MMC/SDIO_D1||MMCSD1_DAT|
|WLAN Host I/F||SDIO_D2||AM1808 MMC/SDIO_D2||MMCSD1_D|
|WLAN Host I/F||WLAN_IRQ||AM1808 GPIO||UHPI_HCNTL1 /UPP_CH1_START /GP6|
|WLAN Host I/F||WL_UART_DBG||Optional signal||No Connect|
|WLAN Host I/F||WL_RS232_RX||Optional signal||No Connect|
|WLAN Host I/F||WL_RS232_TX||Optional signal||No Connect|
Getting Started Guide
Follow this link to access the Getting Started Guide that describes the HW setting, WLAN and BT driver installation and basic connection to the WLAN AP:
Getting Started Guide
Follow this link for the LSR Module Product web page LSR Module product page
Follow this link for the WL1271 module datasheet
Follow this link for the Mistral WL271 daughtercard web page Mistral WL271 daughtercard product page