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Goodmorning,
i have a board with Psoc 4 (CY8C4247AZI-M485) and i need to use can bus with 125Kb as baud rate, i have some difficult to find right clock configuration.
I know should be better to have an external OSC but... i don't have it, some suggestions?
thanks in advance
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Hi, in order to use CAN baud rate of 125 kbps, you need a clock with tolerance ± 1.58%.
So, you need to use WCO or an external oscillator or an external MHz crystal in your design, as IMO for PSoC 4M devices provides tolerance of ± 2%.
Thanks,
Shanmathi
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Hi,
Pls refer to section: 2.2 Configuring CAN component in hardware of KBA:Control Area Network (CAN) Protocol Troubleshooting Guide for PSoC® - KBA224456
Thanks,
Shanmathi
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problem is that i don't have prescaler setting available for internal osc.
thanks
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Hi, in order to use CAN baud rate of 125 kbps, you need a clock with tolerance ± 1.58%.
So, you need to use WCO or an external oscillator or an external MHz crystal in your design, as IMO for PSoC 4M devices provides tolerance of ± 2%.
Thanks,
Shanmathi