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stm32: pull-up on I2C lines

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fixes #2310
This commit is contained in:
Kenneth Bell
2021-11-24 20:55:12 +00:00
committed by Ron Evans
parent 79467baf12
commit a6200920f7
1 changed files with 3 additions and 2 deletions
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src/machine/machine_stm32_moder_gpio.go
+3 -2
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@@ -1,3 +1,4 @@
//go:build stm32 && !stm32f103
// +build stm32,!stm32f103
package machine
@@ -110,13 +111,13 @@ func (p Pin) ConfigureAltFunc(config PinConfig, altFunc uint8) {
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.OTYPER.ReplaceBits(stm32.GPIO_OTYPER_OT0_OpenDrain, stm32.GPIO_OTYPER_OT0_Msk, pos/2)
port.OSPEEDR.ReplaceBits(gpioOutputSpeedLow, gpioOutputSpeedMask, pos)
port.PUPDR.ReplaceBits(gpioPullFloating, gpioPullMask, pos)
port.PUPDR.ReplaceBits(gpioPullUp, gpioPullMask, pos)
p.SetAltFunc(altFunc)
case PinModeI2CSDA:
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.OTYPER.ReplaceBits(stm32.GPIO_OTYPER_OT0_OpenDrain, stm32.GPIO_OTYPER_OT0_Msk, pos/2)
port.OSPEEDR.ReplaceBits(gpioOutputSpeedLow, gpioOutputSpeedMask, pos)
port.PUPDR.ReplaceBits(gpioPullFloating, gpioPullMask, pos)
port.PUPDR.ReplaceBits(gpioPullUp, gpioPullMask, pos)
p.SetAltFunc(altFunc)
// SPI