machine.UART refactor (#3832)

* add gosched calls to UART

* add UART.flush() stubs for all supported architectures

* add comment un uart.go on flush functionality

* uart.writeByte as base of UART usage

* fix NXP having duplicate WriteByte

* fix writeByte not returning error on some platforms

* add flush method for fe310 device

* check for error in WriteByte call to writeByte
This commit is contained in:
Patricio Whittingslow
2023-07-15 11:24:53 -03:00
committed by GitHub
parent c83f712c17
commit a7b205c26c
14 changed files with 69 additions and 19 deletions
+3 -1
View File
@@ -74,10 +74,12 @@ func (uart *UART) SetBaudRate(br uint32) {
}
// WriteByte writes a byte of data to the UART.
func (uart *UART) WriteByte(c byte) error {
func (uart *UART) writeByte(c byte) error {
uart.txReg.Set(uint32(c))
for !uart.statusReg.HasBits(uart.txEmptyFlag) {
}
return nil
}
func (uart *UART) flush() {}