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Code Issues Packages Projects Releases 6 Wiki Activity

machine.UART refactor (#3832)

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* 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
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src/machine/machine_rp2040_uart.go
+8 -1
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@@ -86,9 +86,10 @@ 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 {
// wait until buffer is not full
for uart.Bus.UARTFR.HasBits(rp.UART0_UARTFR_TXFF) {
gosched()
}
// write data
@@ -96,6 +97,12 @@ func (uart *UART) WriteByte(c byte) error {
return nil
}
func (uart *UART) flush() {
for uart.Bus.UARTFR.HasBits(rp.UART0_UARTFR_BUSY) {
gosched()
}
}
// SetFormat for number of data bits, stop bits, and parity for the UART.
func (uart *UART) SetFormat(databits, stopbits uint8, parity UARTParity) error {
var pen, pev uint8