Program can not enter interrupt routine, what aspects need to check?
Users need to check the following aspects: 1. Check whether the globa...
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Can "Call" instruction be executed in Interrupt Service Routine?
Because of sonix MCU Stack number limitations, users should pay special att...
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What is the clock source of Sonix MCU Timer/counter? How to set the timer frequency divider?
Timer / Counter TC0 has dual clock source, user can select internal clock o...
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Why chips can not enter interrupt?
First, check the corresponding interrupt source control bit whether set to ...
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P00 settings completely correct, why can not enter interrupt?
First, make sure P00 interrupt settings are correct, such as P00IEN is set ...
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What should be noted when switch IO port from output mode to input mode?
1.Steps for input mode switching to output mode: (1) Initial I/O status,...
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How much is Sonix MCU I/O port drive current?
I/O port drive current can be divided into source current and sink current,...
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Using Reset pin as input port (via ground key), why can not read low level?
1.Check Reset_Pin in Code Option if it is chosen right;2.For OTP MCU, this ...
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Connect pull-down resistors to I/O port, why can not read low level when there is no external signal?
SONIX MCU general I/O port built-in pull-up resistors, the equivalent resis...
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How to connect single key and MCU to prevent I/O port damage effectively?
In product development, the key is the most common functions, taking such c...