machine: add Tx method to simulated SPI bus

This allows display drivers like st7789 to be used on the TinyGo Playground.
2019-12-08 17:57:57 +01:00 · 2019-12-08 17:57:57 +01:00 · 49eb414530
--- a/src/machine/spi.go
+++ b/src/machine/spi.go
@ -1,4 +1,4 @@
-// +build sam stm32,!stm32f407 fe310
+// +build !baremetal sam stm32,!stm32f407 fe310
 package machine
`@ -1,4 +1,4 @@`
	`// +build sam stm32,!stm32f407 fe310`	`// +build !baremetal sam stm32,!stm32f407 fe310`

	`package machine`	`package machine`