tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-03 02:27:48 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

feature: make SPI implementation shared for rp2040/rp2350

Browse Source 
Signed-off-by: deadprogram <ron@hybridgroup.com>
This commit is contained in:
deadprogram
2024-12-18 11:21:51 +01:00
committed by Ron Evans
parent 64fa7853a7
commit f64e70e659
2 changed files with 5 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/machine/machine_rp2040_spi.go → src/machine/machine_rp2_spi.go
+4 -5
View File
@@ -1,4 +1,4 @@
//go:build rp2040
//go:build rp2040 || rp2350
package machine
@@ -207,7 +207,7 @@ func (spi SPI) initSPI(config SPIConfig) (err error) {
}
err = spi.SetBaudRate(config.Frequency)
// Set SPI Format (CPHA and CPOL) and frame format (default is Motorola)
spi.setFormat(config.Mode, rp.XIP_SSI_CTRLR0_SPI_FRF_STD)
spi.setFormat(config.Mode)
// Always enable DREQ signals -- harmless if DMA is not listening
spi.Bus.SSPDMACR.SetBits(rp.SPI0_SSPDMACR_TXDMAE | rp.SPI0_SSPDMACR_RXDMAE)
@@ -217,14 +217,13 @@ func (spi SPI) initSPI(config SPIConfig) (err error) {
}
//go:inline
func (spi SPI) setFormat(mode uint8, frameFormat uint32) {
func (spi SPI) setFormat(mode uint8) {
cpha := uint32(mode) & 1
cpol := uint32(mode>>1) & 1
spi.Bus.SSPCR0.ReplaceBits(
(cpha<<rp.SPI0_SSPCR0_SPH_Pos)|
(cpol<<rp.SPI0_SSPCR0_SPO_Pos)|
(uint32(7)<<rp.SPI0_SSPCR0_DSS_Pos)| // Set databits (SPI word length) to 8 bits.
(frameFormat&0b11)<<rp.SPI0_SSPCR0_FRF_Pos, // Frame format bits 4:5
(uint32(7)<<rp.SPI0_SSPCR0_DSS_Pos), // Set databits (SPI word length) to 8 bits.
rp.SPI0_SSPCR0_SPH_Msk|rp.SPI0_SSPCR0_SPO_Msk|rp.SPI0_SSPCR0_DSS_Msk|rp.SPI0_SSPCR0_FRF_Msk, 0)
}
src/machine/spi.go
+1 -1
View File
@@ -1,4 +1,4 @@
//go:build !baremetal || atmega || esp32 || fe310 || k210 || nrf || (nxp && !mk66f18) || rp2040 || sam || (stm32 && !stm32f7x2 && !stm32l5x2)
//go:build !baremetal || atmega || esp32 || fe310 || k210 || nrf || (nxp && !mk66f18) || rp2040 || rp2350 || sam || (stm32 && !stm32f7x2 && !stm32l5x2)
package machine