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adding mss-can examples reference 1.8.105
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| @Library('automated-testing-library') _ | ||
| pipelineBareMetalDriverExamples() |
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| /Debug*/ | ||
| /Release*/ | ||
| /core | ||
| /LIM-Debug/ | ||
| /LIM-Release/ | ||
| /eNVM-Scratchpad-Release/ | ||
| /DDR-Release/ | ||
| /.settings/ |
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| <?xml version="1.0" encoding="UTF-8"?> | ||
| <projectDescription> | ||
| <name>mpfs-can-basic</name> | ||
| <comment></comment> | ||
| <projects> | ||
| </projects> | ||
| <buildSpec> | ||
| <buildCommand> | ||
| <name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name> | ||
| <triggers>clean,full,incremental,</triggers> | ||
| <arguments> | ||
| </arguments> | ||
| </buildCommand> | ||
| <buildCommand> | ||
| <name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name> | ||
| <triggers>full,incremental,</triggers> | ||
| <arguments> | ||
| </arguments> | ||
| </buildCommand> | ||
| </buildSpec> | ||
| <natures> | ||
| <nature>org.eclipse.cdt.core.cnature</nature> | ||
| <nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature> | ||
| <nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature> | ||
| </natures> | ||
| </projectDescription> |
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| # PolarFire SoC MSS Basic CAN example | ||
|
|
||
| This example project demonstrates using the MSS CAN peripheral to perform CAN | ||
| message transmission and reception. The MSS CAN driver has APIs for BasicCAN and | ||
| FullCAN Configurations. This project is configured for BasicCAN communication. | ||
|
|
||
| The operation of the MSS CAN is controlled via a serial console. | ||
|
|
||
| ## How to use this example | ||
|
|
||
| On connecting Icicle kit J11 to the host PC, you should see 4 COM port interfaces. | ||
| To use this project, configure the COM port **interface1** as below: | ||
| - 115200 baud | ||
| - 8 data bits | ||
| - 1 stop bit | ||
| - no parity | ||
| - no flow control | ||
|
|
||
| This is a self contained example project. A greeting message is displayed | ||
| over the UART terminal. On startup, the example project requests the user to | ||
| enter the data to be send via the CAN Bus. You can enter up to 32 pairs of hex | ||
| digits (no separating spaces) and the data will be sent out in chunks of 8 | ||
| bytes at a time in up to 4 CAN packets. You can send less than 32 bytes of | ||
| data by pressing return to terminate the data early. | ||
|
|
||
| The test program then enters a loop looking for user input to select the next | ||
| action to perform. Whilst in this loop, the data portion of any CAN Bus packets | ||
| received into the rx buffers is displayed on the console. The following menu | ||
| options are available: | ||
|
|
||
| 0 - Perform a hardware reset of the MSS CAN peripheral via SYSREG. This | ||
| shuts down all CAN communications. | ||
| 5 - Reinitailze the MSS CAN peripheral then get data from user and send via | ||
| CAN Bus. | ||
| 7 - Get data from user and send via CAN Bus. | ||
|
|
||
| The following macros modify the behaviour of the program: | ||
|
|
||
| CAN_TX_EXTENDED_ID - Defining this macro causes CAN messages with | ||
| with extended 29 bit IDs to be sent instead of | ||
| the standard 11 bit IDs. | ||
| CAN_TARGET_COCO_PC_ACTIVE - Defining this macro adjusts the baud rate to | ||
| enable reliable operation with the Kromschroder | ||
| CoCo PC Active CAN Bus interface. | ||
| Note: Because the BasicCAN example program provides an ISR for the CAN_IRQ, the | ||
| following macros need to be defined in the project settings to ensure | ||
| interrupts are fully enabled and the default ISR in mss_can.c is disabled: | ||
|
|
||
| MSS_CAN_ENABLE_INTERRUPTS | ||
| MSS_CAN_USER_ISR | ||
|
|
||
| Jumper settings: | ||
| Connect CAN-0 and PCAN as mentioned below: | ||
|
|
||
| | CAN-0 J27 | PCAN | Description | | ||
| |---------------|--------- |--------------| | ||
| | 1 | 7 | CAN_H | | ||
| | 2 | 2 | CAN_L | | ||
| | 3 | 6 | GND | | ||
|
|
||
| ## Test CAN Message Transmission | ||
| 1. Enter the data on UART terminal, which will be received through MSSUART1. | ||
| 2. Based on received data bytes, segregate as CAN messages of maximum 8 | ||
| bytes length. | ||
| 3. Send the received data in terms of CAN messages. | ||
| 4. Observe the CAN messages on CAN Analyzer with message identifier as 0x78. | ||
| 5. Compare the data received on CAN Analyzer with the data sent from the | ||
| UART terminal data should be same. | ||
|
|
||
| ## Test CAN Message Reception | ||
| 1. Send the 8 bytes of CAN message from CAN Analyzer with message identifier | ||
| as 0x200. | ||
| 2. Read the data using CAN APIs and store it in to RAM buffer. | ||
| 3. Transmit the data using MSSUART1 on to UART terminal. | ||
| 4. Observe the data received on UART terminal. | ||
| 5. Compare the data sent from CAN Analyzer with the data received on | ||
| UART terminal data should be same. | ||
|
|
||
| This project provides build configurations and debug launchers as exaplained | ||
| [here](https://github.com/polarfire-soc/polarfire-soc-bare-metal-examples/blob/main/README.md) | ||
|
|
||
| The design description file with this clock setting is available at ./src/boards/icicle-kit-es/fpga_design/design_description/ICICLE_MSS_CAN_8MHz.xml | ||
| This project can be tested with standard Libero reference design. However, please make sure that the input clock to MSS CAN block is set to 8MHz in xml. |
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driver-examples/mss-can/mpfs-can-basic/mpfs-can-basic hw all-harts attach.launch
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driver-examples/mss-can/mpfs-can-basic/mpfs-can-basic hw all-harts debug.launch
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driver-examples/mss-can/mpfs-can-basic/src/application/hart0/e51.c
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| /******************************************************************************* | ||
| * Copyright 2019-2021 Microchip FPGA Embedded Systems Solution. | ||
| * | ||
| * SPDX-License-Identifier: MIT | ||
| * | ||
| * Application code running on E51. | ||
| * | ||
| * Please refer to README.md file for more details | ||
| */ | ||
|
|
||
| #include "mpfs_hal/mss_hal.h" | ||
| #include "inc/common.h" | ||
|
|
||
| volatile uint32_t count_sw_ints_h0 = 0U; | ||
|
|
||
| /* Main function for the hart0(E51 processor). | ||
| * Application code running on hart1 is placed here | ||
| * | ||
| * The hart1 is in WFI while booting, hart0 brings it out of WFI when it raises | ||
| * the first Software interrupt. | ||
| */ | ||
| void e51(void) | ||
| { | ||
| uint8_t flag = 0u; | ||
| volatile uint32_t icount = 0U; | ||
| uint64_t hartid = read_csr(mhartid); | ||
| uint32_t pattern_offset = 12U; | ||
| HLS_DATA* hls = (HLS_DATA*)(uintptr_t)get_tp_reg(); | ||
| HART_SHARED_DATA * hart_share = (HART_SHARED_DATA *)hls->shared_mem; | ||
|
|
||
| /* Clear pending software interrupt in case there was any. */ | ||
| clear_soft_interrupt(); | ||
| set_csr(mie, MIP_MSIP); | ||
|
|
||
| (void)mss_config_clk_rst(MSS_PERIPH_MMUART0, (uint8_t) MPFS_HAL_FIRST_HART, PERIPHERAL_ON); | ||
|
|
||
| MSS_UART_init( &g_mss_uart0_lo, | ||
| MSS_UART_115200_BAUD, | ||
| MSS_UART_DATA_8_BITS | MSS_UART_NO_PARITY | MSS_UART_ONE_STOP_BIT); | ||
|
|
||
| MSS_UART_polled_tx_string(&g_mss_uart0_lo , | ||
| (const uint8_t*)"\r\nPlease observe UART-1 for application messages\r\n"); | ||
|
|
||
| /* Raise software interrupt to wake hart 1 */ | ||
| raise_soft_interrupt(1U); | ||
|
|
||
| __enable_irq(); | ||
|
|
||
| while (1U) | ||
| { | ||
| icount++; | ||
| if (0x100000U == icount) | ||
| { | ||
| icount = 0U; | ||
| } | ||
| } | ||
| /* never return */ | ||
| } | ||
|
|
||
| /* hart0 Software interrupt handler */ | ||
| void Software_h0_IRQHandler(void) | ||
| { | ||
| uint64_t hart_id = read_csr(mhartid); | ||
| count_sw_ints_h0++; | ||
| } |
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