tinygo-org/drivers
1
0
Fork 0
mirror of https://github.com/tinygo-org/drivers.git synced 2026-08-15 04:13:40 +00:00
Code Issues Packages Projects Releases 10 Wiki Activity

Revert "Added support for 125MHz to WS2812 for RP2040"

Browse Source 
This reverts commit b4eb406a43 (erroneous
push).
This commit is contained in:
BCG
2022-02-14 01:06:23 -05:00
parent b4eb406a43
commit 0ced12683c
3 changed files with 1 additions and 303 deletions
Download Patch File Download Diff File Expand all files Collapse all files
ws2812/ws2812-asm_cortexm.go
-299
View File
@@ -652,305 +652,6 @@ func (d Device) writeByte120(c byte) {
interrupt.Restore(mask) interrupt.Restore(mask)
} }
func (d Device) writeByte125(c byte) {
portSet, maskSet := d.Pin.PortMaskSet()
portClear, maskClear := d.Pin.PortMaskClear()
// Timings:
// T0H: 44 - 46 cycles or 352.0ns - 368.0ns
// T1H: 132 - 134 cycles or 1056.0ns - 1072.0ns
// TLD: 144 - cycles or 1152.0ns -
mask := interrupt.Disable()
value := uint32(c) << 24
device.AsmFull(`
1: @ send_bit
str {maskSet}, {portSet} @ [2] T0H and T0L start here
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
lsls {value}, #1 @ [1]
bcs.n 2f @ [1/3] skip_store
str {maskClear}, {portClear} @ [2] T0H -> T0L transition
2: @ skip_store
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
str {maskClear}, {portClear} @ [2] T1H -> T1L transition
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
subs {i}, #1 @ [1]
bne.n 1b @ [1/3] send_bit
`, map[string]interface{}{
"value": value,
"i": 8,
"maskSet": maskSet,
"portSet": portSet,
"maskClear": maskClear,
"portClear": portClear,
})
interrupt.Restore(mask)
}
func (d Device) writeByte168(c byte) { func (d Device) writeByte168(c byte) {
portSet, maskSet := d.Pin.PortMaskSet() portSet, maskSet := d.Pin.PortMaskSet()
portClear, maskClear := d.Pin.PortMaskClear() portClear, maskClear := d.Pin.PortMaskClear()
ws2812/ws2812.go
+1 -1
View File
@@ -1,7 +1,7 @@
// Package ws2812 implements a driver for WS2812 and SK6812 RGB LED strips. // Package ws2812 implements a driver for WS2812 and SK6812 RGB LED strips.
package ws2812 // import "tinygo.org/x/drivers/ws2812" package ws2812 // import "tinygo.org/x/drivers/ws2812"
//go:generate go run gen-ws2812.go -arch=cortexm 16 48 64 120 125 168 //go:generate go run gen-ws2812.go -arch=cortexm 16 48 64 120 168
//go:generate go run gen-ws2812.go -arch=tinygoriscv 160 320 //go:generate go run gen-ws2812.go -arch=tinygoriscv 160 320
import ( import (
ws2812/ws2812_cortexm.go
-3
View File
@@ -29,9 +29,6 @@ func (d Device) WriteByte(c byte) error {
case 120_000_000: // 120MHz case 120_000_000: // 120MHz
d.writeByte120(c) d.writeByte120(c)
return nil return nil
case 125_000_000: // 125MHz
d.writeByte125(c)
return nil
case 168_000_000: // 168MHz, e.g. stm32f405 case 168_000_000: // 168MHz, e.g. stm32f405
d.writeByte168(c) d.writeByte168(c)
return nil return nil