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driver-examples/CoreGPIO/miv-rv32-coregpio-example/.cproject
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driver-examples/CoreGPIO/miv-rv32-coregpio-example/.gitignore
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| /*miv-rv32i-debug*/ | ||
| /*miv-rv32-imc-release*/ | ||
| /*miv-rv32-imc-debug*/ | ||
| /*miv-rv32ima-release*/ | ||
| /*miv-rv32ima-debug*/ | ||
| /*miv-rv32i-release*/ | ||
| /.settings*/ |
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driver-examples/CoreGPIO/miv-rv32-coregpio-example/.project
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| <?xml version="1.0" encoding="UTF-8"?> | ||
| <projectDescription> | ||
| <name>miv-rv32-coregpio-example</name> | ||
| <comment></comment> | ||
| <projects> | ||
| </projects> | ||
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| </natures> | ||
| <variableList> | ||
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| <name>PLATFORM_LOC</name> | ||
| <value>$%7BPARENT-1-PROJECT_LOC%7D/platform</value> | ||
| </variable> | ||
| <variable> | ||
| <name>PLATFORM_LOC1</name> | ||
| <value>$%7BPARENT-3-ECLIPSE_HOME%7D/BB5/g/new/mss-i2c-examples/myprojects/miv_rv32/platform</value> | ||
| </variable> | ||
| </variableList> | ||
| </projectDescription> |
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driver-examples/CoreGPIO/miv-rv32-coregpio-example/README.md
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|
|
||
| # CoreGPIO Example | ||
|
|
||
| This example project demonstrates the use of CoreGPIO driver APIs. The output port configuration | ||
| is demonstrated using the onboard LEDs. | ||
|
|
||
| ## How to use this example | ||
|
|
||
| This sample project is targeted at a MIV_RV32 design running on a PolarFire | ||
| Avalanche board(Future Electronics) connected via a USB-UART serial cable to a host PC running | ||
| a terminal emulator such as TeraTerm or Putty configured as follows: | ||
| - 115200 baud | ||
| - 8 data bits | ||
| - 1 stop bit | ||
| - no parity | ||
| - no flow control. | ||
|
|
||
| ## Target hardware | ||
| This example can be targeted at the latest Mi-V Soft Processor MIV_RV32 or at the | ||
| legacy variants such as Mi-V_RV32IMA_L1_AXI etc. Choose the build configurations | ||
| per the target processor in your design and the supported ISA extensions that you want to use. | ||
|
|
||
| All the design specific definitions such as peripheral base addresses, system clock frequency | ||
| etc. are included in hw_platform.h. | ||
|
|
||
| To test this project, use Mi-V soft processor design targeted at Avalanche board available | ||
| at [github Mi-V-Soft-RISC-V](https://github.com/Mi-V-Soft-RISC-V/Future-Avalanche-Board/tree/main/Libero_Projects). | ||
| Ensure that the hw_platform.h matches the design. | ||
|
|
||
| This example project can be used with another design using a different hardware | ||
| configuration. This can be achieved by overwriting the content of this example | ||
| project's "hw_platform.h" file with the correct data from your Libero design. | ||
|
|
||
| ### Booting the system: | ||
|
|
||
| Currently the example project is configured to use FlashPro debugger to execute | ||
| from LSRAM in both Debug and Release mode. | ||
|
|
||
| In the release mode build configuration, following setting is used | ||
| `--change-section-lma *-0x80000000` | ||
| under | ||
| Tool Settings > GNU RISC-V Cross Create Flash Image > General > Other flags . | ||
|
|
||
| This will allow you to attach the release mode executable as the memory | ||
| initialization client in Libero when you want to execute it from non-volatile memory. | ||
|
|
||
| ## Silicon revision dependencies | ||
| This example is tested on PolarFire MPF300TS device. |
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...er-examples/CoreGPIO/miv-rv32-coregpio-example/miv-rv32-coregpio-example hw attach.launch
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driver-examples/CoreGPIO/miv-rv32-coregpio-example/miv-rv32-coregpio-example hw debug.launch
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|---|---|---|
| @@ -0,0 +1,62 @@ | ||
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driver-examples/CoreGPIO/miv-rv32-coregpio-example/src/application/main.c
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| /******************************************************************************* | ||
| * Copyright 2019-2021 Microchip FPGA Embedded Systems Solutions. | ||
| * | ||
| * SPDX-License-Identifier: MIT | ||
| * | ||
| * Application demonstrating the use of CoreGPIO driver. Please see the | ||
| * Readme.md for more details. | ||
| */ | ||
| #include <drivers/fpga_ip/CoreGPIO/core_gpio.h> | ||
| #include <drivers/fpga_ip/CoreUARTapb/core_uart_apb.h> | ||
| #include "fpga_design_config/hw_platform.h" | ||
| #include "miv_rv32_hal/miv_rv32_hal.h" | ||
|
|
||
| /******************************************************************************* | ||
| * Types, Constants and Greetings messages | ||
| *******************************************************************************/ | ||
|
|
||
| #define APB_BUS_WIDTH GPIO_APB_32_BITS_BUS | ||
| #define RX_BUFF_SIZE 64U | ||
| #define HIGH 1u | ||
| #define LOW 0U | ||
|
|
||
| gpio_instance_t g_gpio; | ||
| UART_instance_t g_uart; | ||
|
|
||
| uint8_t g_message[] = | ||
| "\r\n\r\n\ | ||
| ******************************************************************************\r\n\ | ||
| ******************* CoreGPIO Example Project ********************************\r\n\ | ||
| ******************************************************************************\r\n\ | ||
| This example project demonstrates the use of the CoreGPIO driver\r\n\ | ||
| with Mi-V soft processor on Future Electronics Polarfire Avalanche board\r\n\ | ||
| observe LED1 and LED2 on the Avalanche board. LED1 and LED2 will blink simultaneously\r\n\ | ||
| after some predefined delay \r\n\n"; | ||
|
|
||
| /* delay in ms */ | ||
| static void delay(uint8_t t_in_ms); | ||
|
|
||
| /******************************************************************************* | ||
| * main | ||
| *******************************************************************************/ | ||
| void main() | ||
| { | ||
| /* LED state variable */ | ||
| uint8_t LED1_state = HIGH; | ||
| uint8_t LED2_state = LOW; | ||
|
|
||
| /* Initialize UART and GPIO instances */ | ||
| UART_init( &g_uart, COREUARTAPB0_BASE_ADDR,\ | ||
| BAUD_VALUE_115200, (DATA_8_BITS | NO_PARITY) ); | ||
|
|
||
| GPIO_init(&g_gpio, COREGPIO_OUT_BASE_ADDR,APB_BUS_WIDTH); | ||
|
|
||
| /* Greeting message */ | ||
| UART_polled_tx_string(&g_uart,g_message); | ||
|
|
||
| /* Set GPIO LED state */ | ||
| GPIO_set_output(&g_gpio, GPIO_1, LED1_state ); | ||
| GPIO_set_output(&g_gpio, GPIO_0, LED2_state ); | ||
|
|
||
| while(1) | ||
| { | ||
|
|
||
| /* Toggle LEDS indefinitely */ | ||
| delay(25); | ||
|
|
||
| LED1_state = (~LED1_state & 0b00000001) ; | ||
| LED2_state = (~LED2_state & 0b00000001) ; | ||
|
|
||
| GPIO_set_output(&g_gpio, GPIO_1, LED1_state ); | ||
| GPIO_set_output(&g_gpio, GPIO_0, LED2_state ); | ||
|
|
||
| delay(25); | ||
| } | ||
| } | ||
|
|
||
| /* delay in ms */ | ||
| static void delay(uint8_t t_in_ms) | ||
| { | ||
| uint32_t loopcount = (t_in_ms * SYS_CLK_FREQ)/1000U; | ||
| for (int count = 0 ; count < loopcount ; count++) | ||
| { | ||
|
|
||
| } | ||
| } | ||
|
|
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