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-rw-r--r--ports/mimxrt/boards/MIMXRT1010_EVK/mpconfigboard.h3
-rw-r--r--ports/mimxrt/boards/MIMXRT1020_EVK/mpconfigboard.h5
-rw-r--r--ports/mimxrt/boards/MIMXRT1050_EVK/mpconfigboard.h3
-rw-r--r--ports/mimxrt/boards/MIMXRT1060_EVK/mpconfigboard.h3
-rw-r--r--ports/mimxrt/boards/MIMXRT1064_EVK/mpconfigboard.h3
-rw-r--r--ports/mimxrt/boards/SEEED_ARCH_MIX/mpconfigboard.h6
-rw-r--r--ports/mimxrt/boards/TEENSY40/mpconfigboard.h6
-rw-r--r--ports/mimxrt/boards/TEENSY41/mpconfigboard.h6
-rw-r--r--ports/mimxrt/machine_spi.c32
9 files changed, 50 insertions, 17 deletions
diff --git a/ports/mimxrt/boards/MIMXRT1010_EVK/mpconfigboard.h b/ports/mimxrt/boards/MIMXRT1010_EVK/mpconfigboard.h
index 9a74a1c9c..726a63904 100644
--- a/ports/mimxrt/boards/MIMXRT1010_EVK/mpconfigboard.h
+++ b/ports/mimxrt/boards/MIMXRT1010_EVK/mpconfigboard.h
@@ -27,7 +27,8 @@
#define IOMUX_TABLE_SPI \
{ IOMUXC_GPIO_AD_06_LPSPI1_SCK }, { IOMUXC_GPIO_AD_05_LPSPI1_PCS0 }, \
- { IOMUXC_GPIO_AD_04_LPSPI1_SDO }, { IOMUXC_GPIO_AD_03_LPSPI1_SDI },
+ { IOMUXC_GPIO_AD_04_LPSPI1_SDO }, { IOMUXC_GPIO_AD_03_LPSPI1_SDI }, \
+ { IOMUXC_GPIO_AD_02_LPSPI1_PCS1 }
#define DMA_REQ_SRC_RX { 0, kDmaRequestMuxLPSPI1Rx, kDmaRequestMuxLPSPI2Rx }
#define DMA_REQ_SRC_TX { 0, kDmaRequestMuxLPSPI1Tx, kDmaRequestMuxLPSPI2Tx }
diff --git a/ports/mimxrt/boards/MIMXRT1020_EVK/mpconfigboard.h b/ports/mimxrt/boards/MIMXRT1020_EVK/mpconfigboard.h
index 5f5de5a3e..2e7ee34e8 100644
--- a/ports/mimxrt/boards/MIMXRT1020_EVK/mpconfigboard.h
+++ b/ports/mimxrt/boards/MIMXRT1020_EVK/mpconfigboard.h
@@ -37,10 +37,13 @@
#define IOMUX_TABLE_SPI \
{ IOMUXC_GPIO_AD_B0_10_LPSPI1_SCK }, { IOMUXC_GPIO_AD_B0_11_LPSPI1_PCS0 }, \
{ IOMUXC_GPIO_AD_B0_12_LPSPI1_SDO }, { IOMUXC_GPIO_AD_B0_13_LPSPI1_SDI }, \
+ { 0 }, \
{ 0 }, { 0 }, \
{ 0 }, { 0 }, \
+ { 0 }, \
{ IOMUXC_GPIO_AD_B1_12_LPSPI3_SCK }, { IOMUXC_GPIO_AD_B1_13_LPSPI3_PCS0 }, \
- { IOMUXC_GPIO_AD_B1_14_LPSPI3_SDO }, { IOMUXC_GPIO_AD_B1_15_LPSPI3_SDI },
+ { IOMUXC_GPIO_AD_B1_14_LPSPI3_SDO }, { IOMUXC_GPIO_AD_B1_15_LPSPI3_SDI }, \
+ { IOMUXC_GPIO_AD_B1_09_LPSPI3_PCS1 } \
#define DMA_REQ_SRC_RX { 0, kDmaRequestMuxLPSPI1Rx, kDmaRequestMuxLPSPI2Rx, \
kDmaRequestMuxLPSPI3Rx, kDmaRequestMuxLPSPI4Rx }
diff --git a/ports/mimxrt/boards/MIMXRT1050_EVK/mpconfigboard.h b/ports/mimxrt/boards/MIMXRT1050_EVK/mpconfigboard.h
index aa9ab8d95..c2783a3e5 100644
--- a/ports/mimxrt/boards/MIMXRT1050_EVK/mpconfigboard.h
+++ b/ports/mimxrt/boards/MIMXRT1050_EVK/mpconfigboard.h
@@ -32,7 +32,8 @@
#define IOMUX_TABLE_SPI \
{ IOMUXC_GPIO_SD_B0_00_LPSPI1_SCK }, { IOMUXC_GPIO_SD_B0_01_LPSPI1_PCS0 }, \
- { IOMUXC_GPIO_SD_B0_02_LPSPI1_SDO }, { IOMUXC_GPIO_SD_B0_03_LPSPI1_SDI },
+ { IOMUXC_GPIO_SD_B0_02_LPSPI1_SDO }, { IOMUXC_GPIO_SD_B0_03_LPSPI1_SDI }, \
+ { 0 },
#define DMA_REQ_SRC_RX { 0, kDmaRequestMuxLPSPI1Rx, kDmaRequestMuxLPSPI2Rx, \
kDmaRequestMuxLPSPI3Rx, kDmaRequestMuxLPSPI4Rx }
diff --git a/ports/mimxrt/boards/MIMXRT1060_EVK/mpconfigboard.h b/ports/mimxrt/boards/MIMXRT1060_EVK/mpconfigboard.h
index b108122ff..475d07ddb 100644
--- a/ports/mimxrt/boards/MIMXRT1060_EVK/mpconfigboard.h
+++ b/ports/mimxrt/boards/MIMXRT1060_EVK/mpconfigboard.h
@@ -32,7 +32,8 @@
#define IOMUX_TABLE_SPI \
{ IOMUXC_GPIO_SD_B0_00_LPSPI1_SCK }, { IOMUXC_GPIO_SD_B0_01_LPSPI1_PCS0 }, \
- { IOMUXC_GPIO_SD_B0_02_LPSPI1_SDO }, { IOMUXC_GPIO_SD_B0_03_LPSPI1_SDI },
+ { IOMUXC_GPIO_SD_B0_02_LPSPI1_SDO }, { IOMUXC_GPIO_SD_B0_03_LPSPI1_SDI }, \
+ { 0 },
#define DMA_REQ_SRC_RX { 0, kDmaRequestMuxLPSPI1Rx, kDmaRequestMuxLPSPI2Rx, \
kDmaRequestMuxLPSPI3Rx, kDmaRequestMuxLPSPI4Rx }
diff --git a/ports/mimxrt/boards/MIMXRT1064_EVK/mpconfigboard.h b/ports/mimxrt/boards/MIMXRT1064_EVK/mpconfigboard.h
index 3c724868f..874991ac6 100644
--- a/ports/mimxrt/boards/MIMXRT1064_EVK/mpconfigboard.h
+++ b/ports/mimxrt/boards/MIMXRT1064_EVK/mpconfigboard.h
@@ -32,7 +32,8 @@
#define IOMUX_TABLE_SPI \
{ IOMUXC_GPIO_SD_B0_00_LPSPI1_SCK }, { IOMUXC_GPIO_SD_B0_01_LPSPI1_PCS0 }, \
- { IOMUXC_GPIO_SD_B0_02_LPSPI1_SDO }, { IOMUXC_GPIO_SD_B0_03_LPSPI1_SDI },
+ { IOMUXC_GPIO_SD_B0_02_LPSPI1_SDO }, { IOMUXC_GPIO_SD_B0_03_LPSPI1_SDI }, \
+ { 0 },
#define DMA_REQ_SRC_RX { 0, kDmaRequestMuxLPSPI1Rx, kDmaRequestMuxLPSPI2Rx, \
kDmaRequestMuxLPSPI3Rx, kDmaRequestMuxLPSPI4Rx }
diff --git a/ports/mimxrt/boards/SEEED_ARCH_MIX/mpconfigboard.h b/ports/mimxrt/boards/SEEED_ARCH_MIX/mpconfigboard.h
index 7c79063ee..53a3d4ed7 100644
--- a/ports/mimxrt/boards/SEEED_ARCH_MIX/mpconfigboard.h
+++ b/ports/mimxrt/boards/SEEED_ARCH_MIX/mpconfigboard.h
@@ -35,12 +35,16 @@
#define IOMUX_TABLE_SPI \
{ 0 }, { 0 }, \
{ 0 }, { 0 }, \
+ { 0 }, \
{ 0 }, { 0 }, \
{ 0 }, { 0 }, \
+ { 0 }, \
{ IOMUXC_GPIO_AD_B1_15_LPSPI3_SCK }, { IOMUXC_GPIO_AD_B1_12_LPSPI3_PCS0 }, \
{ IOMUXC_GPIO_AD_B1_14_LPSPI3_SDO }, { IOMUXC_GPIO_AD_B1_13_LPSPI3_SDI }, \
+ { 0 }, \
{ IOMUXC_GPIO_B1_07_LPSPI4_SCK }, { IOMUXC_GPIO_B1_04_LPSPI4_PCS0 }, \
- { IOMUXC_GPIO_B1_06_LPSPI4_SDO }, { IOMUXC_GPIO_B1_05_LPSPI4_SDI },
+ { IOMUXC_GPIO_B1_06_LPSPI4_SDO }, { IOMUXC_GPIO_B1_05_LPSPI4_SDI }, \
+ { IOMUXC_GPIO_B1_03_LPSPI4_PCS1 }
#define DMA_REQ_SRC_RX { 0, kDmaRequestMuxLPSPI1Rx, kDmaRequestMuxLPSPI2Rx, \
kDmaRequestMuxLPSPI3Rx, kDmaRequestMuxLPSPI4Rx }
diff --git a/ports/mimxrt/boards/TEENSY40/mpconfigboard.h b/ports/mimxrt/boards/TEENSY40/mpconfigboard.h
index ae0a23462..08a774d88 100644
--- a/ports/mimxrt/boards/TEENSY40/mpconfigboard.h
+++ b/ports/mimxrt/boards/TEENSY40/mpconfigboard.h
@@ -27,12 +27,16 @@
#define IOMUX_TABLE_SPI \
{ 0 }, { 0 }, \
{ 0 }, { 0 }, \
+ { 0 }, \
{ 0 }, { 0 }, \
{ 0 }, { 0 }, \
+ { 0 }, \
{ IOMUXC_GPIO_AD_B1_15_LPSPI3_SCK }, { IOMUXC_GPIO_AD_B0_03_LPSPI3_PCS0 }, \
{ IOMUXC_GPIO_AD_B1_14_LPSPI3_SDO }, { IOMUXC_GPIO_AD_B0_02_LPSPI3_SDI }, \
+ { 0 }, \
{ IOMUXC_GPIO_B0_03_LPSPI4_SCK }, { IOMUXC_GPIO_B0_00_LPSPI4_PCS0 }, \
- { IOMUXC_GPIO_B0_02_LPSPI4_SDO }, { IOMUXC_GPIO_B0_01_LPSPI4_SDI },
+ { IOMUXC_GPIO_B0_02_LPSPI4_SDO }, { IOMUXC_GPIO_B0_01_LPSPI4_SDI }, \
+ { 0 },
#define DMA_REQ_SRC_RX { 0, kDmaRequestMuxLPSPI1Rx, kDmaRequestMuxLPSPI2Rx, \
kDmaRequestMuxLPSPI3Rx, kDmaRequestMuxLPSPI4Rx }
diff --git a/ports/mimxrt/boards/TEENSY41/mpconfigboard.h b/ports/mimxrt/boards/TEENSY41/mpconfigboard.h
index 4ca82d4b6..449f10bab 100644
--- a/ports/mimxrt/boards/TEENSY41/mpconfigboard.h
+++ b/ports/mimxrt/boards/TEENSY41/mpconfigboard.h
@@ -27,12 +27,16 @@
#define IOMUX_TABLE_SPI \
{ IOMUXC_GPIO_SD_B0_00_LPSPI1_SCK }, { IOMUXC_GPIO_SD_B0_01_LPSPI1_PCS0 }, \
{ IOMUXC_GPIO_SD_B0_02_LPSPI1_SDO }, { IOMUXC_GPIO_SD_B0_03_LPSPI1_SDI }, \
+ { IOMUXC_GPIO_EMC_31_LPSPI1_PCS1 }, \
{ 0 }, { 0 }, \
{ 0 }, { 0 }, \
+ { 0 }, \
{ IOMUXC_GPIO_AD_B1_15_LPSPI3_SCK }, { IOMUXC_GPIO_AD_B1_12_LPSPI3_PCS0 }, \
{ IOMUXC_GPIO_AD_B1_14_LPSPI3_SDO }, { IOMUXC_GPIO_AD_B1_13_LPSPI3_SDI }, \
+ { 0 }, \
{ IOMUXC_GPIO_B0_03_LPSPI4_SCK }, { IOMUXC_GPIO_B0_00_LPSPI4_PCS0 }, \
- { IOMUXC_GPIO_B0_02_LPSPI4_SDO }, { IOMUXC_GPIO_B0_01_LPSPI4_SDI },
+ { IOMUXC_GPIO_B0_02_LPSPI4_SDO }, { IOMUXC_GPIO_B0_01_LPSPI4_SDI }, \
+ { IOMUXC_GPIO_B1_03_LPSPI4_PCS1 }
#define DMA_REQ_SRC_RX { 0, kDmaRequestMuxLPSPI1Rx, kDmaRequestMuxLPSPI2Rx, \
kDmaRequestMuxLPSPI3Rx, kDmaRequestMuxLPSPI4Rx }
diff --git a/ports/mimxrt/machine_spi.c b/ports/mimxrt/machine_spi.c
index 06c0278fb..0332d9a9e 100644
--- a/ports/mimxrt/machine_spi.c
+++ b/ports/mimxrt/machine_spi.c
@@ -53,6 +53,7 @@
#define CS0 (iomux_table[index + 1])
#define SDO (iomux_table[index + 2])
#define SDI (iomux_table[index + 3])
+#define CS1 (iomux_table[index + 4])
typedef struct _machine_spi_obj_t {
mp_obj_base_t base;
@@ -81,17 +82,25 @@ static const iomux_table_t iomux_table[] = {
static uint16_t dma_req_src_rx[] = DMA_REQ_SRC_RX;
static uint16_t dma_req_src_tx[] = DMA_REQ_SRC_TX;
-bool lpspi_set_iomux(int8_t spi, uint8_t drive) {
- int index = (spi - 1) * 4;
+bool lpspi_set_iomux(int8_t spi, uint8_t drive, uint8_t cs) {
+ int index = (spi - 1) * 5;
if (SCK.muxRegister != 0) {
IOMUXC_SetPinMux(SCK.muxRegister, SCK.muxMode, SCK.inputRegister, SCK.inputDaisy, SCK.configRegister, 0U);
IOMUXC_SetPinConfig(SCK.muxRegister, SCK.muxMode, SCK.inputRegister, SCK.inputDaisy, SCK.configRegister,
pin_generate_config(PIN_PULL_UP_100K, PIN_MODE_OUT, drive, SCK.configRegister));
- IOMUXC_SetPinMux(CS0.muxRegister, CS0.muxMode, CS0.inputRegister, CS0.inputDaisy, CS0.configRegister, 0U);
- IOMUXC_SetPinConfig(CS0.muxRegister, CS0.muxMode, CS0.inputRegister, CS0.inputDaisy, CS0.configRegister,
- pin_generate_config(PIN_PULL_UP_100K, PIN_MODE_OUT, drive, CS0.configRegister));
+ if (cs == 0 && CS0.muxRegister != 0) {
+ IOMUXC_SetPinMux(CS0.muxRegister, CS0.muxMode, CS0.inputRegister, CS0.inputDaisy, CS0.configRegister, 0U);
+ IOMUXC_SetPinConfig(CS0.muxRegister, CS0.muxMode, CS0.inputRegister, CS0.inputDaisy, CS0.configRegister,
+ 0x1080u | drive << IOMUXC_SW_PAD_CTL_PAD_DSE_SHIFT);
+ } else if (cs == 1 && CS1.muxRegister != 0) {
+ IOMUXC_SetPinMux(CS1.muxRegister, CS1.muxMode, CS1.inputRegister, CS1.inputDaisy, CS1.configRegister, 0U);
+ IOMUXC_SetPinConfig(CS1.muxRegister, CS1.muxMode, CS1.inputRegister, CS1.inputDaisy, CS1.configRegister,
+ 0x1080u | drive << IOMUXC_SW_PAD_CTL_PAD_DSE_SHIFT);
+ } else {
+ mp_raise_ValueError(MP_ERROR_TEXT("The chosen CS is not available"));
+ }
IOMUXC_SetPinMux(SDO.muxRegister, SDO.muxMode, SDO.inputRegister, SDO.inputDaisy, SDO.configRegister, 0U);
IOMUXC_SetPinConfig(SDO.muxRegister, SDO.muxMode, SDO.inputRegister, SDO.inputDaisy, SDO.configRegister,
@@ -117,7 +126,7 @@ STATIC void machine_spi_print(const mp_print_t *print, mp_obj_t self_in, mp_prin
}
mp_obj_t machine_spi_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
- enum { ARG_id, ARG_baudrate, ARG_polarity, ARG_phase, ARG_bits, ARG_firstbit, ARG_gap_ns, ARG_drive };
+ enum { ARG_id, ARG_baudrate, ARG_polarity, ARG_phase, ARG_bits, ARG_firstbit, ARG_gap_ns, ARG_drive, ARG_cs };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_id, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_baudrate, MP_ARG_INT, {.u_int = DEFAULT_SPI_BAUDRATE} },
@@ -127,6 +136,7 @@ mp_obj_t machine_spi_make_new(const mp_obj_type_t *type, size_t n_args, size_t n
{ MP_QSTR_firstbit, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = DEFAULT_SPI_FIRSTBIT} },
{ MP_QSTR_gap_ns, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
{ MP_QSTR_drive, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = DEFAULT_SPI_DRIVE} },
+ { MP_QSTR_cs, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
};
static bool clk_init = true;
@@ -160,7 +170,6 @@ mp_obj_t machine_spi_make_new(const mp_obj_type_t *type, size_t n_args, size_t n
CLOCK_SetMux(kCLOCK_LpspiMux, 1); // Clock source is kCLOCK_Usb1PllPfd1Clk
CLOCK_SetDiv(kCLOCK_LpspiDiv, CLOCK_DIVIDER);
}
- lpspi_set_iomux(spi_index_table[spi_id], drive);
LPSPI_Reset(self->spi_inst);
LPSPI_Enable(self->spi_inst, false); // Disable first before new settings are applies
@@ -176,7 +185,12 @@ mp_obj_t machine_spi_make_new(const mp_obj_type_t *type, size_t n_args, size_t n
if (args[ARG_gap_ns].u_int != -1) {
self->master_config->betweenTransferDelayInNanoSec = args[ARG_gap_ns].u_int;
}
+ uint8_t cs = args[ARG_cs].u_int;
+ if (cs <= 1) {
+ self->master_config->whichPcs = cs;
+ }
LPSPI_MasterInit(self->spi_inst, self->master_config, CLOCK_GetFreq(kCLOCK_Usb1PllPfd0Clk) / (CLOCK_DIVIDER + 1));
+ lpspi_set_iomux(spi_index_table[spi_id], drive, cs);
return MP_OBJ_FROM_PTR(self);
}
@@ -271,7 +285,7 @@ STATIC void machine_spi_transfer(mp_obj_base_t *self_in, size_t len, const uint8
masterXfer.txData = (uint8_t *)src;
masterXfer.rxData = (uint8_t *)dest;
masterXfer.dataSize = len;
- masterXfer.configFlags = kLPSPI_MasterPcs0 | kLPSPI_MasterPcsContinuous | kLPSPI_MasterByteSwap;
+ masterXfer.configFlags = (self->master_config->whichPcs << LPSPI_MASTER_PCS_SHIFT) | kLPSPI_MasterPcsContinuous | kLPSPI_MasterByteSwap;
// Reconfigure the TCR, required after switch between DMA vs. non-DMA
LPSPI_Enable(self->spi_inst, false); // Disable first before new settings are applied
@@ -317,7 +331,7 @@ STATIC void machine_spi_transfer(mp_obj_base_t *self_in, size_t len, const uint8
masterXfer.txData = (uint8_t *)src;
masterXfer.rxData = (uint8_t *)dest;
masterXfer.dataSize = len;
- masterXfer.configFlags = kLPSPI_MasterPcs0 | kLPSPI_MasterPcsContinuous | kLPSPI_MasterByteSwap;
+ masterXfer.configFlags = (self->master_config->whichPcs << LPSPI_MASTER_PCS_SHIFT) | kLPSPI_MasterPcsContinuous | kLPSPI_MasterByteSwap;
LPSPI_MasterTransferBlocking(self->spi_inst, &masterXfer);
}
generated by cgit v1.2.3 (git 2.46.0) at 2025-11-15 13:12:42 +0000