hello to all,
I need to insert two CAN ports on the spi3 port of the nrf52840 with two different chip select and interrupt.
I have created an overlay file that defines two MCP2515 nodes.
overlay:
&spi3 {
status = "okay";
cs-gpios = <&gpio1 3 1>, <&gpio1 4 1>;
canprimary: mcp2515@0 {
compatible = "microchip,mcp2515";
spi-max-frequency = <1000000>;
int-gpios = <&gpio1 5 1>;
status = "okay";
label = "MCP2515_A";
reg = <0x0>;
osc-freq = <10000000>;
bus-speed = <250000>;
sjw = <1>;
prop-seg = <2>;
phase-seg1 = <7>;
phase-seg2 = <6>;
#address-cells = <1>;
#size-cells = <0>;
sample-point = < 875 >;
};
cansecondary: mcp2515@1 {
compatible = "microchip,mcp2515";
spi-max-frequency = <1000000>;
int-gpios = <&gpio1 6 1>;
status = "okay";
label = "MCP2515_B";
reg = <0x1>;
osc-freq = <10000000>;
bus-speed = <250000>;
sjw = <1>;
prop-seg = <2>;
phase-seg1 = <7>;
phase-seg2 = <6>;
#address-cells = <1>;
#size-cells = <0>;
sample-point = < 875 >;
};
};
if I compile with only one of the two chips, I have no problems with initialization:
definition:
#define CAN0_NODE DT_NODELABEL(canprimary) #define CAN1_NODE DT_NODELABEL(cansecondary)
initialization:
void can_api_init(void)
{
int ret;
can_dev_0 = DEVICE_DT_GET(CAN0_NODE);
printk("GET: %s\n", can_dev_0->name); // node 1
/* can_dev_1 = DEVICE_DT_GET(CAN1_NODE);
printk("GET: %s\n", can_dev_1->name); */ // node 2
... etc
if I activate the second node,
void can_api_init(void)
{
int ret;
can_dev_0 = DEVICE_DT_GET(CAN0_NODE);
printk("GET: %s\n", can_dev_0->name);
can_dev_1 = DEVICE_DT_GET(CAN1_NODE); // <= activate second node !!!
printk("GET: %s\n", can_dev_1->name);
the compiler gives me an error:
[198/198] Linking C executable zephyr/zephyr.elf
Memory region Used Size Region Size %age Used
FLASH: 58916 B 1 MB 5.62%
SRAM: 31880 B 256 KB 12.16%
IDT_LIST: 0 GB 2 KB 0.00%
* Terminal will be reused by tasks, press any key to close it.
* Executing task: nRF Connect: Build: dual_can_external/build_external (active)
Building dual_can_external
west build --build-dir /opt/nordic/CAN_52840dk/dual_can_external/build_external /opt/nordic/CAN_52840dk/dual_can_external
[1/11] Building C object CMakeFiles/app.dir/src/can/can.c.obj
[2/11] Linking C static library app/libapp.a
[3/11] Linking C executable zephyr/zephyr_pre0.elf
FAILED: zephyr/zephyr_pre0.elf zephyr/zephyr_pre0.map
: && ccache /opt/nordic/ncs/toolchains/v2.0.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc zephyr/CMakeFiles/zephyr_pre0.dir/misc/empty_file.c.obj -o zephyr/zephyr_pre0.elf -fuse-ld=bfd -Wl,-T zephyr/linker_zephyr_pre0.cmd -Wl,-Map=/opt/nordic/CAN_52840dk/dual_can_external/build_external/zephyr/zephyr_pre0.map -Wl,--whole-archive app/libapp.a zephyr/libzephyr.a zephyr/arch/common/libarch__common.a zephyr/arch/arch/arm/core/aarch32/libarch__arm__core__aarch32.a zephyr/arch/arch/arm/core/aarch32/cortex_m/libarch__arm__core__aarch32__cortex_m.a zephyr/arch/arch/arm/core/aarch32/mpu/libarch__arm__core__aarch32__mpu.a zephyr/lib/libc/minimal/liblib__libc__minimal.a zephyr/lib/posix/liblib__posix.a zephyr/soc/arm/common/cortex_m/libsoc__arm__common__cortex_m.a zephyr/soc/arm/nordic_nrf/nrf52/libsoc__arm__nordic_nrf__nrf52.a zephyr/drivers/clock_control/libdrivers__clock_control.a zephyr/drivers/console/libdrivers__console.a zephyr/drivers/gpio/libdrivers__gpio.a zephyr/drivers/spi/libdrivers__spi.a zephyr/drivers/can/libdrivers__can.a zephyr/drivers/serial/libdrivers__serial.a zephyr/drivers/timer/libdrivers__timer.a zephyr/drivers/pinctrl/libdrivers__pinctrl.a modules/nrf/lib/fatal_error/lib..__nrf__lib__fatal_error.a modules/nrf/drivers/hw_cc310/lib..__nrf__drivers__hw_cc310.a modules/hal_nordic/nrfx/libmodules__hal_nordic__nrfx.a modules/segger/libmodules__segger.a -Wl,--no-whole-archive zephyr/kernel/libkernel.a zephyr/CMakeFiles/offsets.dir/./arch/arm/core/offsets/offsets.c.obj -L"/opt/nordic/ncs/toolchains/v2.0.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/10.3.0/thumb/v7e-m/nofp" -L/opt/nordic/CAN_52840dk/dual_can_external/build_external/zephyr -lgcc zephyr/arch/common/libisr_tables.a -no-pie -mcpu=cortex-m4 -mthumb -mabi=aapcs -mfp16-format=ieee -Wl,--gc-sections -Wl,--build-id=none -Wl,--sort-common=descending -Wl,--sort-section=alignment -Wl,-u,_OffsetAbsSyms -Wl,-u,_ConfigAbsSyms -nostdlib -static -Wl,-X -Wl,-N -Wl,--orphan-handling=warn /opt/nordic/ncs/v2.0.0/nrfxlib/crypto/nrf_cc310_platform/lib/cortex-m4/soft-float/no-interrupts/libnrf_cc310_platform_0.9.14.a && cd /opt/nordic/CAN_52840dk/dual_can_external/build_external/zephyr && /opt/nordic/ncs/toolchains/v2.0.0/Cellar/cmake/3.20.5/bin/cmake -E echo
/opt/nordic/ncs/toolchains/v2.0.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/10.3.0/../../../../arm-zephyr-eabi/bin/ld.bfd: app/libapp.a(can.c.obj): in function `can_api_init':
/opt/nordic/CAN_52840dk/dual_can_external/src/can/can.c:401: undefined reference to `__device_dts_ord_130'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: /opt/nordic/ncs/toolchains/v2.0.0/bin/cmake --build /opt/nordic/CAN_52840dk/dual_can_external/build_external
some idea ??
Thank you
