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Kenneth Bell
28 lines
475 B
Go
28 lines
475 B
Go
// +build stm32,!stm32f1,!stm32l5
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package machine
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import (
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"device/stm32"
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"runtime/volatile"
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)
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func getEXTIConfigRegister(pin uint8) *volatile.Register32 {
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switch (pin & 0xf) / 4 {
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case 0:
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return &stm32.SYSCFG.EXTICR1
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case 1:
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return &stm32.SYSCFG.EXTICR2
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case 2:
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return &stm32.SYSCFG.EXTICR3
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case 3:
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return &stm32.SYSCFG.EXTICR4
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}
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return nil
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}
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func enableEXTIConfigRegisters() {
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// Enable SYSCFG
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stm32.RCC.APB2ENR.SetBits(stm32.RCC_APB2ENR_SYSCFGEN)
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}
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