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[nxp/mcxn] add SPI6 support (#8704) 

* [bsp][nxp] add missing drv_spi.h

Otherwise when building spi users such as u8g2, gcc will complain can't
find the drv_spi.h.

* [bsp][nxp] enable spi6

* [bsp][nxp] add spi sample code which uses spi6 to loopback

Connect spi6's MISO <--> MSIO, I.E P3_20 and P3_22 with Dupont Line
The sample usage and output would be:

msh >spi_sample
spi rbuf : 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f

spi loopback mode test over!
This commit is contained in:
xhackerustc 2024-04-05 08:08:39 +08:00 committed by GitHub
parent 447a10c964
commit e0e9eb8b15
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
6 changed files with 133 additions and 5 deletions
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24
bsp/nxp/mcx/mcxn/Libraries/drivers/drv_spi.c
View File

@ -20,6 +20,11 @@ enum
#ifdef BSP_USING_SPI3
SPI3_INDEX,
#endif
#ifdef BSP_USING_SPI6
SPI6_INDEX,
#endif
#ifdef BSP_USING_SPI7
SPI7_INDEX,
#endif
@ -63,7 +68,20 @@ static struct lpc_spi lpc_obj[] =
.rx_dma_chl = 3,
.name = "spi3",
},
#endif
#endif /* BSP_USING_SPI3 */
#ifdef BSP_USING_SPI6
{
.LPSPIx = LPSPI6,
.clock_attach_id = kFRO_HF_DIV_to_FLEXCOMM6,
.clock_div_name = kCLOCK_DivFlexcom6Clk,
.clock_name = kCLOCK_FroHf,
.tx_dma_request = kDmaRequestMuxLpFlexcomm6Tx,
.rx_dma_request = kDmaRequestMuxLpFlexcomm6Rx,
.DMAx = DMA0,
.tx_dma_chl = 4,
.rx_dma_chl = 5,
.name = "spi6",
#endif /* BSP_USING_SPI6 */
#ifdef BSP_USING_SPI7
{
.LPSPIx = LPSPI7,
@ -77,7 +95,7 @@ static struct lpc_spi lpc_obj[] =
.rx_dma_chl = 3,
.name = "spi7",
},
#endif
#endif /* BSP_USING_SPI7 */
};
@ -146,7 +164,7 @@ static rt_ssize_t spixfer(struct rt_spi_device *device, struct rt_spi_message *m
// if(message->length < MAX_DMA_TRANSFER_SIZE)
if(0)
{
// SPI_MasterTransferBlocking(spi->SPIx, &transfer);
LPSPI_MasterTransferBlocking(spi->LPSPIx, &transfer);
}
else
{

18
bsp/nxp/mcx/mcxn/Libraries/drivers/drv_spi.h Normal file
View File

@ -0,0 +1,18 @@
/*
* Copyright (c) 2006-2024, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2024-03-22 Jisheng Zhang The first version for mcxn
*/
#ifndef __DRV_SPI_H__
#define __DRV_SPI_H__
#include <rtdevice.h>
rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, rt_base_t cs_pin);
#endif /*__DRV_SPI_H__ */

9
bsp/nxp/mcx/mcxn/frdm-mcxn947/board/Kconfig
View File

@ -64,6 +64,15 @@ menu "On-chip Peripheral Drivers"
bool "Enable Flexcomm3 as SPI"
default n
config BSP_USING_SPI6
bool "Enable Flexcomm6 as SPI"
default n
if BSP_USING_SPI6
config BSP_USING_SPI6_SAMPLE
bool "Enable SPI6 BUS Sample"
default n
endif
config BSP_USING_SPI7
bool "Enable Flexcomm7 as SPI"
default n

8
bsp/nxp/mcx/mcxn/frdm-mcxn947/board/MCUX_Config/board/pin_mux.c
View File

@ -99,8 +99,12 @@ void BOARD_InitBootPins(void)
PORT2->PCR[6] = PORT_PCR_MUX(3) | PORT_PCR_PE(1) | PORT_PCR_PS(1) | PORT_PCR_IBE(1); /* SDHC0_D3 */
PORT2->PCR[7] = PORT_PCR_MUX(3) | PORT_PCR_PE(1) | PORT_PCR_PS(1) | PORT_PCR_IBE(1); /* SDHC0_D2 */
PORT3->PCR[20] = PORT_PCR_MUX(3) | PORT_PCR_PS(0) | PORT_PCR_IBE(1); /* FC6_P0 */
PORT3->PCR[21] = PORT_PCR_MUX(3) | PORT_PCR_PS(0) | PORT_PCR_IBE(1); /* FC6_P1 */
/* mikroBUS SPI6 */
PORT3->PCR[20] = PORT_PCR_MUX(3) | PORT_PCR_PS(0) | PORT_PCR_PE(0) | PORT_PCR_IBE(1); /* FC6_P0 SDO/D[0], FC6_SPI_MOSI */
PORT3->PCR[21] = PORT_PCR_MUX(3) | PORT_PCR_PS(0) | PORT_PCR_PE(0) | PORT_PCR_IBE(1); /* FC6_P1 SCK, FC6_SPI_CLK */
PORT3->PCR[22] = PORT_PCR_MUX(3) | PORT_PCR_PS(0) | PORT_PCR_PE(0) | PORT_PCR_IBE(1); /* FC6_P2 SDI/D[1], FC3_SPI_MISO */
PORT3->PCR[23] = PORT_PCR_MUX(0) | PORT_PCR_PS(0) | PORT_PCR_PE(0) | PORT_PCR_IBE(1); /* CS */
// PORT1->PCR[20] = PORT_PCR_MUX(3) | PORT_PCR_PS(0) | PORT_PCR_PE(0) | PORT_PCR_IBE(1); /* FC4_0 */
// PORT1->PCR[21] = PORT_PCR_MUX(3) | PORT_PCR_PS(0) | PORT_PCR_PE(0) | PORT_PCR_IBE(1); /* FC4_1 */

3
bsp/nxp/mcx/mcxn/frdm-mcxn947/board/SConscript
View File

@ -9,6 +9,9 @@ MCUX_Config/board/clock_config.c
MCUX_Config/board/pin_mux.c
""")
if GetDepend(['BSP_USING_SPI6_SAMPLE']):
src += Glob('ports/spi_sample.c')
CPPPATH = [cwd, cwd + '/MCUX_Config/board']
CPPDEFINES = ['DEBUG', 'CPU_MCXN947VDF_cm33_core0']

76
bsp/nxp/mcx/mcxn/frdm-mcxn947/board/ports/spi_sample.c Normal file
View File

@ -0,0 +1,76 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-07-19 Rbbb666 first version
* 2024-03-30 xhackerustc 2nd version for FRDM-MCXN947
*/
#include "board.h"
#include <drv_spi.h>
#define SPI_NAME "spi60"
#define CS_PIN (3*32+23)
static struct rt_spi_device *spi_dev;
/* attach spi device */
static int rt_spi_device_init(void)
{
struct rt_spi_configuration cfg;
rt_hw_spi_device_attach("spi6", SPI_NAME, CS_PIN);
cfg.data_width = 8;
cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB | RT_SPI_NO_CS;
cfg.max_hz = 1 *1000 *1000;
spi_dev = (struct rt_spi_device *)rt_device_find(SPI_NAME);
if (RT_NULL == spi_dev)
{
rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
return -RT_ERROR;
}
rt_spi_configure(spi_dev, &cfg);
return RT_EOK;
}
INIT_APP_EXPORT(rt_spi_device_init);
/* spi loopback mode test case */
static int spi_sample(int argc, char **argv)
{
rt_uint8_t t_buf[32], r_buf[32];
int i = 0;
static struct rt_spi_message msg1;
for (i = 0; i < sizeof(t_buf); i++)
{
t_buf[i] = i;
}
msg1.send_buf = &t_buf;
msg1.recv_buf = &r_buf;
msg1.length = sizeof(t_buf);
msg1.cs_take = 1;
msg1.cs_release = 1;
msg1.next = RT_NULL;
rt_spi_transfer_message(spi_dev, &msg1);
rt_kprintf("spi rbuf : ");
for (i = 0; i < sizeof(r_buf); i++)
{
rt_kprintf("%x ", r_buf[i]);
}
rt_kprintf("\nspi loopback mode test over!\n");
return RT_EOK;
}
MSH_CMD_EXPORT(spi_sample, spi loopback test);