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machine/atsamd51x,runtime/atsamd51x: fixes needed for full support for all PWM pins. Also adds some useful constants to clarify peripheral clock usage

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Signed-off-by: deadprogram <ron@hybridgroup.com>
This commit is contained in:
deadprogram
2020-08-26 14:04:35 +02:00
committed by Ron Evans
parent ecaf9461ce
commit 58565fa46d
13 changed files with 231 additions and 87 deletions
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src/runtime/runtime_atsamd51.go
+3 -3
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@@ -317,7 +317,7 @@ func initUSBClock() {
// Put Generic Clock Generator 1 as source for USB
//GCLK->PCHCTRL[USB_GCLK_ID].reg = GCLK_PCHCTRL_GEN_GCLK1_Val | (1 << GCLK_PCHCTRL_CHEN_Pos);
sam.GCLK.PCHCTRL[10].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK.PCHCTRL[sam.PCHCTRL_GCLK_USB].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
}
@@ -327,9 +327,9 @@ func initADCClock() {
sam.MCLK.APBDMASK.SetBits(sam.MCLK_APBDMASK_ADC1_)
// Put Generic Clock Generator 1 as source for ADC0 and ADC1.
sam.GCLK.PCHCTRL[40].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK.PCHCTRL[sam.PCHCTRL_GCLK_ADC0].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
sam.GCLK.PCHCTRL[41].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK.PCHCTRL[sam.PCHCTRL_GCLK_ADC1].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
}