How can i use 4 Serial peripheral interface on nrf9160

RE: How can i use 4 Serial peripheral interface on nrf9160

Martin Lesund — Fri, 13 Nov 2020 12:21:32 GMT

You have to manually disable the UART_0 in the prj.conf, if not the project will use the default board settings.

But please try this on the latest NCS as well.

RE: How can i use 4 Serial peripheral interface on nrf9160

duxinglang — Fri, 13 Nov 2020 05:57:18 GMT

Thank you for your reply. This is the content of my PRJ. Conf file, please check it：

#
# Copyright (c) 2019 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-BSD-5-Clause-Nordic
#
# General config
CONFIG_NEWLIB_LIBC=y
CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y
CONFIG_ASSERT=y
CONFIG_REBOOT=y
CONFIG_GPIO=y
CONFIG_TRUSTED_EXECUTION_NONSECURE=y

# Log
CONFIG_PRINTK=n
CONFIG_LOG=y
CONFIG_LOG_IMMEDIATE=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_LOG_BACKEND_RTT=y
CONFIG_LOG_BACKEND_UART=n
CONFIG_CONSOLE=y
CONFIG_RTT_CONSOLE=y
CONFIG_UART_CONSOLE=n

# Modem info
CONFIG_MODEM_INFO=y

# BSD library
CONFIG_BSD_LIBRARY=y
CONFIG_BSD_LIBRARY_TRACE_ENABLED=n

# Flash
CONFIG_FLASH=y
CONFIG_IMG_ERASE_PROGRESSIVELY=y

# NVS
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_NVS=y
CONFIG_NVS_LOG_LEVEL_DBG=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y

# GPS
CONFIG_AT_CMD=n
CONFIG_AT_NOTIF=n

# AT_CMD
CONFIG_AT_HOST_LIBRARY=n
CONFIG_UART_INTERRUPT_DRIVEN=n

# Console
CONFIG_CONSOLE_SUBSYS=y
CONFIG_CONSOLE_HANDLER=y
CONFIG_CONSOLE_GETCHAR=y

# Enable SUPL client support AGPS
CONFIG_SUPL_CLIENT_LIB=n

# Network
CONFIG_NETWORKING=y
CONFIG_NET_NATIVE=n
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_OFFLOAD=y
CONFIG_NET_SOCKETS_POSIX_NAMES=y
CONFIG_NET_SOCKETS_SOCKOPT_TLS=y

# LTE link control
CONFIG_LTE_LINK_CONTROL=y
CONFIG_LTE_AUTO_INIT_AND_CONNECT=n
#add by liming
#CONFIG_POWER_OPTIMIZATION_ENABLE=n
CONFIG_LTE_NETWORK_MODE_LTE_M_GPS=n
#CONFIG_LTE_LINK_CONTROL_LOG_LEVEL_DBG=y
CONFIG_LTE_NETWORK_MODE_NBIOT_GPS=y
CONFIG_LTE_LEGACY_PCO_MODE=y
#CONFIG_LTE_PSM_REQ_RPTAU="00000110"
#CONFIG_LTE_PSM_REQ_RAT="00000010"

# MQTT
CONFIG_MQTT_LIB=y
CONFIG_MQTT_LIB_TLS=y   
#add by liming
CONFIG_MQTT_CLIENT_ID="devzone_client"
CONFIG_MQTT_BROKER_HOSTNAME="test.mosquitto.org"
CONFIG_MQTT_BROKER_PORT=8884
CONFIG_SEC_TAG=51966
CONFIG_PEER_VERIFY=1

# Appliaction
#CONFIG_MQTT_PUB_TOPIC="/my/publish/topic"
#CONFIG_MQTT_SUB_TOPIC="/my/subscribe/topic"
#CONFIG_MQTT_CLIENT_ID="my-client-id"
#CONFIG_MQTT_BROKER_HOSTNAME="mqtt.eclipse.org"
#CONFIG_MQTT_BROKER_PORT=1883

# Library for buttons and LEDs
CONFIG_DK_LIBRARY=y
CONFIG_DK_LIBRARY_INVERT_LEDS=n

# Heap and stacks
CONFIG_HEAP_MEM_POOL_SIZE=16384
CONFIG_MAIN_STACK_SIZE=8192
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
CONFIG_HW_STACK_PROTECTION=y

# MCUBOOT
CONFIG_BOOTLOADER_MCUBOOT=y
CONFIG_IMG_MANAGER=y
CONFIG_MCUBOOT_IMG_MANAGER=y

# SPI
CONFIG_SPI=y
CONFIG_SPI_NRFX=y
CONFIG_SPI_2=y
CONFIG_SPI_2_NRF_SPIM=y
CONFIG_SPI_3=y
CONFIG_SPI_3_NRF_SPIM=y

# I2C
CONFIG_I2C=y
CONFIG_I2C_NRFX=y
CONFIG_I2C_0=y
CONFIG_I2C_0_NRF_TWIM=y
CONFIG_I2C_2=n
CONFIG_I2C_2_NRF_TWIM=n
CONFIG_I2C_INIT_PRIORITY=60

# UART
CONFIG_SERIAL=y
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_UART_LINE_CTRL=y
#CONFIG_UART_0_NRF_UARTE=n
#CONFIG_UART_0_NRF_FLOW_CONTROL=n
CONFIG_UART_1_NRF_UARTE=y
CONFIG_UART_1_NRF_FLOW_CONTROL=n

# Use smaller buffers for net_buf as CANBUS packets are quite small.
CONFIG_NET_BUF_DATA_SIZE=64
CONFIG_NET_BUF_USER_DATA_SIZE=1

# Main thread
CONFIG_MAIN_STACK_SIZE=4096
CONFIG_HEAP_MEM_POOL_SIZE=2048

RE: How can i use 4 Serial peripheral interface on nrf9160

Martin Lesund — Thu, 12 Nov 2020 14:27:00 GMT

Hi,
Could you share your latest prj.conf file?
Also I would advice you to port your project to NCS 1.4.0 and do a re-test.

I suspect that you are running on NCS1.2.0 and there was an issue with similar symptoms as you see in that version.

RE: How can i use 4 Serial peripheral interface on nrf9160

duxinglang — Thu, 12 Nov 2020 07:20:48 GMT

If so, can I turn off Console and Logging and use I2C_0 as 9160 to communicate with peripherals?Now I have tried this and can also obtain binding, but in fact I2C cannot communicate, there is no corresponding message display peripheral, and it seems that the SCL and SDA pin of I2C are occupied by other functions.

I used an oscilloscope to capture the waveform and found that the waveform could be normally seen using I2C_2, but the waveform could not be seen after using I2C_0. It seemed that the SCL was forcibly restricted to a high level by an application.

devzone.nordicsemi.com/.../aab9dea025bd18b221c31f7645f2e7ea.mp4 devzone.nordicsemi.com/.../921fbb696dda3f554c0378ce15dfc425.mp4

RE: How can i use 4 Serial peripheral interface on nrf9160

Martin Lesund — Fri, 06 Nov 2020 14:04:41 GMT

Correct, you would need to disable UART0.
The console and logging messages uses uart0 as default.

RE: How can i use 4 Serial peripheral interface on nrf9160

duxinglang — Thu, 05 Nov 2020 11:22:18 GMT

Now, I use UART1,SPI2,SPI3. When I open I2C0, the program cannot obtain binding. What is the reason?Is it because LOG needs to use UART0?And when I blocked the LOG in pri.conf, my program crashed as soon as it started

CONFIG_LOG=n
CONFIG_LOG_IMMEDIATE=n

# SPI
CONFIG_SPI=y
CONFIG_SPI_NRFX=y
CONFIG_SPI_2=y
CONFIG_SPI_2_NRF_SPIM=y
CONFIG_SPI_3=y
CONFIG_SPI_3_NRF_SPIM=y

# I2C
CONFIG_I2C=y
CONFIG_I2C_NRFX=y
CONFIG_I2C_0=y
CONFIG_I2C_0_NRF_TWIM=y
CONFIG_I2C_2=n
CONFIG_I2C_2_NRF_TWIM=n
CONFIG_I2C_INIT_PRIORITY=60

# UART
CONFIG_SERIAL=y
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_UART_LINE_CTRL=y
#CONFIG_UART_0_NRF_UARTE=y
#CONFIG_UART_0_NRF_FLOW_CONTROL=n
CONFIG_UART_1_NRF_UARTE=y
CONFIG_UART_1_NRF_FLOW_CONTROL=n

RE: How can i use 4 Serial peripheral interface on nrf9160

Martin Lesund — Mon, 21 Sep 2020 13:04:51 GMT

Please provide the error logs from when you compile your project.

RE: How can i use 4 Serial peripheral interface on nrf9160

duxinglang — Mon, 21 Sep 2020 09:22:48 GMT

Yes, when I tried this method, I found that my project crashed as soon as it started

RE: How can i use 4 Serial peripheral interface on nrf9160

Martin Lesund — Thu, 17 Sep 2020 11:20:06 GMT

Hi duxinglang,

Maybe you have earlier configured some board files?

anyway, try to set

CONFIG_I2C_2=n
CONFIG_I2C_2_NRF_TWIM=n

RE: How can i use 4 Serial peripheral interface on nrf9160

duxinglang — Thu, 17 Sep 2020 03:06:16 GMT

I did find I2C_1 and I2C_2 enabled in the autoconf.h file, but in fact I only enabled I2C_1, not I2C_2. Who started I2C_2 automatically?

RE: How can i use 4 Serial peripheral interface on nrf9160

duxinglang — Thu, 17 Sep 2020 01:31:56 GMT

I'm using ncs v1.2.0, when I was testing, I did not turn on I2C1 and UART1 at the same time. As I said, when I turn on SPI2\SPI3\UART1, they are all ok.When I turn on SPI2\SPI3\I2C1, I find that my SPI2 does not work.it can't get the binding of SPI2.

RE: How can i use 4 Serial peripheral interface on nrf9160

Martin Lesund — Wed, 16 Sep 2020 11:27:28 GMT

Which NCS version are you using?

You do not need to enable the:

CONFIG_I2C_NRFX=y

CONFIG_SPI_NRFX=y

Since you are not using the nrfxlib directly.

So you can remove those lines. (you also have some configs repeated several time.(e.g. config_flash))

In this prj.conf file I see that you have enabled SPI2,SPI3,I2C1,UART1 so that won't work per my statement.

RE: How can i use 4 Serial peripheral interface on nrf9160

duxinglang — Wed, 16 Sep 2020 10:42:05 GMT

In fact, i just turned on different switches in the prj.conf file and didn't change to the address, It has failed to get the binding, and it has not reached the location where the address is set, like this:

void SPI_Flash_Init(void)
{
	spi_flash = device_get_binding(FLASH_DEVICE);
	if (!spi_flash) 
	{
		printk("Could not get %s device\n", FLASH_DEVICE);
		return;
	}

	spi_cfg.operation = SPI_OP_MODE_MASTER | SPI_WORD_SET(8);
	spi_cfg.frequency = 4000000;
	spi_cfg.slave = 0;
}

My prj.conf file:

#
# Copyright (c) 2019 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-BSD-5-Clause-Nordic
#

# General config
CONFIG_TRUSTED_EXECUTION_NONSECURE=y
CONFIG_NEWLIB_LIBC=y
CONFIG_ASSERT=y
CONFIG_REBOOT=y
CONFIG_GPIO=y
CONFIG_LOG=y
CONFIG_LOG_IMMEDIATE=y

# AT_CMD
CONFIG_AT_CMD=y
CONFIG_AT_NOTIF=y

# Network
CONFIG_NETWORKING=y
CONFIG_NET_NATIVE=n
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_OFFLOAD=y

# Modem info
CONFIG_MODEM_INFO=y

# BSD library
CONFIG_BSD_LIBRARY=y
CONFIG_BSD_LIBRARY_TRACE_ENABLED=n

# Library for buttons and LEDs
CONFIG_DK_LIBRARY=y
CONFIG_DK_LIBRARY_INVERT_LEDS=n

# Heap and stacks
CONFIG_HEAP_MEM_POOL_SIZE=16384
CONFIG_MAIN_STACK_SIZE=8192
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
CONFIG_HW_STACK_PROTECTION=y

# MCUBOOT
CONFIG_BOOTLOADER_MCUBOOT=y
CONFIG_IMG_MANAGER=y
CONFIG_MCUBOOT_IMG_MANAGER=y

# SPI
CONFIG_SPI=y
CONFIG_SPI_NRFX=y
CONFIG_SPI_2=y
CONFIG_SPI_2_NRF_SPIM=y
CONFIG_SPI_3=y
CONFIG_SPI_3_NRF_SPIM=y

# I2C
CONFIG_I2C=y
CONFIG_I2C_NRFX=y
CONFIG_I2C_1=y
CONFIG_I2C_1_NRF_TWIM=y
CONFIG_I2C_INIT_PRIORITY=60

# Flash
CONFIG_FLASH=y
CONFIG_IMG_ERASE_PROGRESSIVELY=y

# NVS
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_NVS=y
CONFIG_LOG=y
CONFIG_NVS_LOG_LEVEL_DBG=y
CONFIG_REBOOT=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y

# UART
CONFIG_SERIAL=y
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_UART_LINE_CTRL=y
#CONFIG_UART_0_NRF_UARTE=y
#CONFIG_UART_0_NRF_FLOW_CONTROL=n
CONFIG_UART_1_NRF_UARTE=y
CONFIG_UART_1_NRF_FLOW_CONTROL=n

# Use smaller buffers for net_buf as CANBUS packets are quite small.
CONFIG_NET_BUF_DATA_SIZE=64
CONFIG_NET_BUF_USER_DATA_SIZE=1

RE: How can i use 4 Serial peripheral interface on nrf9160

Martin Lesund — Wed, 16 Sep 2020 08:16:09 GMT

Hi duxinglang,

You may have some overlapping memory areas for the peripherals.

E.g. UART0,TWIM0,SPIS0,SPIM0 has the same address, so you could only use one of them at the same time.

[quote user=""]I can't get the binding of SPI2, and when I use SPI2,SPI3,UART1 at the same time[/quote]

You should be able to get binding on SPI2, please verify in the application that you address the correct peripherals.