tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-13 23:43:40 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

Fix fe310 SPI read

Browse Source
This commit is contained in:
Thomas Tromp
2021-03-12 16:05:14 -05:00
committed by Ron Evans
parent 0b44d0bcc5
commit 56bbc5bf6d
1 changed files with 4 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/machine/machine_fe310.go
+4 -2
View File
@@ -174,11 +174,13 @@ func (spi SPI) Transfer(w byte) (byte, error) {
spi.Bus.TXDATA.Set(uint32(w)) spi.Bus.TXDATA.Set(uint32(w))
// wait until receive has data // wait until receive has data
for spi.Bus.RXDATA.HasBits(sifive.QSPI_RXDATA_EMPTY) { data := spi.Bus.RXDATA.Get()
for data&sifive.QSPI_RXDATA_EMPTY > 0 {
data = spi.Bus.RXDATA.Get()
} }
// return data // return data
return byte(spi.Bus.RXDATA.Get() & sifive.QSPI_RXDATA_DATA_Msk), nil return byte(data), nil
} }
// I2C on the FE310-G002. // I2C on the FE310-G002.