tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-04 11:07:46 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

Adafruit PyPortal Support (#800)

Browse Source 
* machine/PyPortal: implementation, also includes refinements for other members of samd51x familty.
This commit is contained in:
BCG
2020-01-06 05:53:43 -05:00
committed by Ron Evans
parent 7363bdc298
commit ecff6f8e0c
10 changed files with 387 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/runtime/runtime_atsamd51j20.go
+43
View File
@@ -0,0 +1,43 @@
// +build sam,atsamd51,atsamd51j20
package runtime
import (
"device/sam"
)
func initSERCOMClocks() {
// Turn on clock to SERCOM0 for UART0
sam.MCLK.APBAMASK.SetBits(sam.MCLK_APBAMASK_SERCOM0_)
sam.GCLK.PCHCTRL[7].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
// sets the "slow" clock shared by all SERCOM
sam.GCLK.PCHCTRL[3].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
// Turn on clock to SERCOM1
sam.MCLK.APBAMASK.SetBits(sam.MCLK_APBAMASK_SERCOM1_)
sam.GCLK.PCHCTRL[8].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
// Turn on clock to SERCOM2
sam.MCLK.APBBMASK.SetBits(sam.MCLK_APBBMASK_SERCOM2_)
sam.GCLK.PCHCTRL[23].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
// Turn on clock to SERCOM3
sam.MCLK.APBBMASK.SetBits(sam.MCLK_APBBMASK_SERCOM3_)
sam.GCLK.PCHCTRL[24].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
// Turn on clock to SERCOM4
sam.MCLK.APBDMASK.SetBits(sam.MCLK_APBDMASK_SERCOM4_)
sam.GCLK.PCHCTRL[34].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
// Turn on clock to SERCOM5
sam.MCLK.APBDMASK.SetBits(sam.MCLK_APBDMASK_SERCOM5_)
sam.GCLK.PCHCTRL[35].Set((sam.GCLK_PCHCTRL_GEN_GCLK1 << sam.GCLK_PCHCTRL_GEN_Pos) |
sam.GCLK_PCHCTRL_CHEN)
}