How to configure CP2102 USB adapters for high baud rates: Difference between revisions

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CP210x have 32 fixed UART baud rates to a desired baud rate, e.g. requested baud rate in 57-300 range - 300 real baud will be used.
USB adapters with CP210x chip sets allow by default only for 32 standard UART baud rates. This is perfectly fine for most applications, but not for using the CP210x USB adapters in connection with the STorM32 NT bus. To that end, the CP210x chip needs to be reconfigured, to enable high baudrates such as 2000000 bps. The procedure is described in the following.
Range 1474561-2457600 should be reconfigured to 2000000.
 


== Configuration Procedure ==
== Configuration Procedure ==


'''1.''' Run CP21xxCustomizationUtility from [http://www.silabs.com/Support%20Documents/Software/AN197SW.zip AN721SW]
'''1.''' Run CP21xxCustomizationUtility from [http://www.silabs.com/Support%20Documents/Software/AN721SW.zip AN721SW]
:[[File:CP21xxCustomizationUtility 0.png|568px]]
:[[File:CP21xxCustomizationUtility 0.png|568px]]


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:[[File:CP21xxCustomizationUtility 3.png|568px]]
:[[File:CP21xxCustomizationUtility 3.png|568px]]


'''4.''' You should see columns turned green upon completion
'''5.''' You should see columns turned green upon completion
:[[File:CP21xxCustomizationUtility 4.png|568px]]
:[[File:CP21xxCustomizationUtility 4.png|568px]]

Latest revision as of 14:35, 3 March 2016

USB adapters with CP210x chip sets allow by default only for 32 standard UART baud rates. This is perfectly fine for most applications, but not for using the CP210x USB adapters in connection with the STorM32 NT bus. To that end, the CP210x chip needs to be reconfigured, to enable high baudrates such as 2000000 bps. The procedure is described in the following.

Configuration Procedure

1. Run CP21xxCustomizationUtility from AN721SW

CP21xxCustomizationUtility 0.png

2. Select your device from list if it is not selected

CP21xxCustomizationUtility 1.png

3. Expand Baud Rate Alias

CP21xxCustomizationUtility 2.png


4. Set both upper ranges (1474561-2457600 and 2457601-xxxxxxxxx) to 2000000 and click "Program Device"

CP21xxCustomizationUtility 3.png

5. You should see columns turned green upon completion

CP21xxCustomizationUtility 4.png