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deadprogram
38a3ccee52
Add machine-level support for STM32U5 family: GPIO ports A-I with clock enables via AHB2ENR1, EXTI pin interrupts (individual EXTI0-15 IRQs), timer definitions (TIM1-8, TIM15-17), RNG, and alternate function clock enables for all peripherals. Add UART support with STM32U585 baud rate and register configuration. Add arduino-uno-q board pin definitions and USART2 serial. Update shared build tags: gpio_revb, gpio_reva, exti_exti, exti_syscfg.
28 lines
519 B
Go
28 lines
519 B
Go
//go:build stm32 && !stm32f1 && !stm32l5 && !stm32wlx && !stm32g0 && !stm32u5
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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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