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Roti making robot rotimatic/BlueGiga WF121 PCB ZEM0040-1 (view source)
Revision as of 02:53, 19 September 2024
, 19 SeptemberCreated page with "Main Project Page: [Roti_making_robot_rotimatic|Rotimatic] == UART == === Developer Guide Notes/Examples === Values: *0: UART channel 1 *1: UART channel 2 *Example: **chan..."
Main Project Page: [Roti_making_robot_rotimatic|Rotimatic]
== UART ==
=== Developer Guide Notes/Examples ===
Values:
*0: UART channel 1
*1: UART channel 2
*Example:
**channel="0"
**baud
***Default: 57600
***Range: 0-10000000
***Some supported baud rates: 10000000, 5000000, 2500000, 2000000, 1000000, 115200, 57600
Notice that not all baud rates are possible. BGBuild compiler tries to find best match with least amount of error and outputs the result.
Example:
*baud="115200"
*stopbits Stop bits to use
**Range: 1-2
**Default: 1
*Example:
**stopbits="2"
parity Parity to use
Values:
odd: use odd parity bit
even: use even parity bit
none: no parity bit
Default: none
Example:
parity:"odd"
Silicon Labs Page of 19 33
Attribute Value - Description
handshake RTS/CTS for data flow control
Values:
true: RTS/CTS flow control is used
false: RTS/CTS flow control is not used*
Default: false
Example:
handshake="true"
Streaming mode
When using UART in streaming mode ( ), it is highly recommend to use RTS api="false"
/CTS data flow control (handshake="true") to ensure reliable data transfer.
api UART is used for BGAPI protocol
Values:
true: UART is used for BGAPI protocol
false: UART is used for application data
Default: false
Example:
api="true"
When , there should be an application receiving the BGAPI responses and events true
at the host, otherwise the module might get stuck.
Example configurations
3.12.1 Using BGAPI over UART interface
The example below shows how to configure BGAPI to be used over UART2 interface with 115200 bps baud
rate and hardware flow control.
WF121 Project
<?xml version="1.0" encoding="UTF-8" ?>
<hardware>
<uart channel="1
Using BGAPI over UART2 and enabling UART1 to BGScript application
The example below shows how to configure BGAPI to be used over UART2 interface and UART1 interface
access is given to a BGScript application.
This is used in multiple example applications delivered with the Bluegiga Wi-Fi Software. The purpose is for
example to use UART1 for BGScript debugging and UART2 for DFU firmware updates.
WF121 Project
<?xml version="1.0" encoding="UTF-8" ?>
<hardware>
<uart channel="0" baud="115200" api="false" handshake="false" />
<uart channel="1" baud="115200" api="True" handshake="True" />
</hardware>
WF121 Factory Configuration
WF121 Modules are factory shipped with settings listed below.
Feature Value Notes
BGAPI
UART
UART2 This UART gives access to BGAPI protocol, which can be used to control the WF121
Module from a separate host.
Pin 17: CTS
Pin 19: RTS
Pin 35: RX
Pin 36: TX
Baud
rate
115200
bps
Data bits 8
Parity bit none
Stop bit
(s)
1
RTS
/CTS
enabled RTS and CTS must be connected for the BGAPI communication to work properly.
UART1 is activated, but not accessed in the factory configuration.
The corresponding hardware configuration is shown below:
<?xml version="1.0" encoding="UTF-8" ?>
<hardware>
<uart channel="0" baud="115200" api="false" />
<uart channel="1" baud="115200" api="true" handshake="True" />
</hardware>
[https://www.mouser.com/datasheet/2/368/Bluegiga_WF121_Datasheet-1203323.pdf Data Sheet v1.4.9 2013]
[https://www.silabs.com/documents/public/user-guides/UG221.pdf Developer Guide v3.0 2016]
[https://www.silabs.com/documents/public/application-notes/AN998.pdf Application Notes v1.1 2014]
== UART ==
=== Developer Guide Notes/Examples ===
Values:
*0: UART channel 1
*1: UART channel 2
*Example:
**channel="0"
**baud
***Default: 57600
***Range: 0-10000000
***Some supported baud rates: 10000000, 5000000, 2500000, 2000000, 1000000, 115200, 57600
Notice that not all baud rates are possible. BGBuild compiler tries to find best match with least amount of error and outputs the result.
Example:
*baud="115200"
*stopbits Stop bits to use
**Range: 1-2
**Default: 1
*Example:
**stopbits="2"
parity Parity to use
Values:
odd: use odd parity bit
even: use even parity bit
none: no parity bit
Default: none
Example:
parity:"odd"
Silicon Labs Page of 19 33
Attribute Value - Description
handshake RTS/CTS for data flow control
Values:
true: RTS/CTS flow control is used
false: RTS/CTS flow control is not used*
Default: false
Example:
handshake="true"
Streaming mode
When using UART in streaming mode ( ), it is highly recommend to use RTS api="false"
/CTS data flow control (handshake="true") to ensure reliable data transfer.
api UART is used for BGAPI protocol
Values:
true: UART is used for BGAPI protocol
false: UART is used for application data
Default: false
Example:
api="true"
When , there should be an application receiving the BGAPI responses and events true
at the host, otherwise the module might get stuck.
Example configurations
3.12.1 Using BGAPI over UART interface
The example below shows how to configure BGAPI to be used over UART2 interface with 115200 bps baud
rate and hardware flow control.
WF121 Project
<?xml version="1.0" encoding="UTF-8" ?>
<hardware>
<uart channel="1
Using BGAPI over UART2 and enabling UART1 to BGScript application
The example below shows how to configure BGAPI to be used over UART2 interface and UART1 interface
access is given to a BGScript application.
This is used in multiple example applications delivered with the Bluegiga Wi-Fi Software. The purpose is for
example to use UART1 for BGScript debugging and UART2 for DFU firmware updates.
WF121 Project
<?xml version="1.0" encoding="UTF-8" ?>
<hardware>
<uart channel="0" baud="115200" api="false" handshake="false" />
<uart channel="1" baud="115200" api="True" handshake="True" />
</hardware>
WF121 Factory Configuration
WF121 Modules are factory shipped with settings listed below.
Feature Value Notes
BGAPI
UART
UART2 This UART gives access to BGAPI protocol, which can be used to control the WF121
Module from a separate host.
Pin 17: CTS
Pin 19: RTS
Pin 35: RX
Pin 36: TX
Baud
rate
115200
bps
Data bits 8
Parity bit none
Stop bit
(s)
1
RTS
/CTS
enabled RTS and CTS must be connected for the BGAPI communication to work properly.
UART1 is activated, but not accessed in the factory configuration.
The corresponding hardware configuration is shown below:
<?xml version="1.0" encoding="UTF-8" ?>
<hardware>
<uart channel="0" baud="115200" api="false" />
<uart channel="1" baud="115200" api="true" handshake="True" />
</hardware>
[https://www.mouser.com/datasheet/2/368/Bluegiga_WF121_Datasheet-1203323.pdf Data Sheet v1.4.9 2013]
[https://www.silabs.com/documents/public/user-guides/UG221.pdf Developer Guide v3.0 2016]
[https://www.silabs.com/documents/public/application-notes/AN998.pdf Application Notes v1.1 2014]
