GR716-MINI Development Board¶
Overview¶
The GR716-MINI development board provides:
GR716 microcontroller
SPI Flash PROM, 32 MiB
SRAM, 2 MiB
FTDI USB interface for UART debug link (AHBUART) and application UART (APBUART).
4x MMCX connectors (2 ADC, 2 DAC)
Miniature 80 pin mezzanine connector (bottom side)
GR716-MINI Development Board (Credit: Cobham Gaisler AB)¶
Hardware¶
Console Output¶
By default, the kernel is configured to send console output to the first APBUART peripheral (apbuart0). The UART debug forwarding setting, if enabled in GRMON, is preserved.
Programming and Debugging¶
Building¶
Applications for the gr716a_mini board configuration can be built
as usual (see Building an Application).
In order to build the application for gr716a_mini, set the BOARD
variable to gr716a_mini.
The application is linked to the on-chip tightly coupled memory by default.
Running on hardware¶
Connect with GRMON, then load and run the application.
$ grmon -u -cginit 0x00010000 -uart /dev/ttyUSB0
GRMON debug monitor v3.2.8
Copyright (C) 2020 Cobham Gaisler - All rights reserved.
For latest updates, go to http://www.gaisler.com/
Comments or bug-reports to support@gaisler.com
Device ID: 0x716
GRLIB build version: 4204
Detected system: GR716
Detected frequency: 20.0 MHz
Component Vendor
AHB-to-AHB Bridge Cobham Gaisler
MIL-STD-1553B Interface Cobham Gaisler
GRSPW2 SpaceWire Serial Link Cobham Gaisler
SPI to AHB Bridge Cobham Gaisler
I2C to AHB Bridge Cobham Gaisler
CAN Controller with DMA Cobham Gaisler
CAN Controller with DMA Cobham Gaisler
AHB Debug UART Cobham Gaisler
AHB-to-AHB Bridge Cobham Gaisler
PacketWire Receiver with DMA Cobham Gaisler
PacketWire Transmitter with DMA Cobham Gaisler
GRDMAC DMA Controller Cobham Gaisler
GRDMAC DMA Controller Cobham Gaisler
GRDMAC DMA Controller Cobham Gaisler
GRDMAC DMA Controller Cobham Gaisler
Dual-port SPI Slave Cobham Gaisler
LEON3FT SPARC V8 Processor Cobham Gaisler
AHB-to-AHB Bridge Cobham Gaisler
AHB Memory Scrubber Cobham Gaisler
AHB-to-AHB Bridge Cobham Gaisler
AHB Debug UART Cobham Gaisler
Dual-port AHB(/CPU) On-Chip RAM Cobham Gaisler
Dual-port AHB(/CPU) On-Chip RAM Cobham Gaisler
Generic AHB ROM Cobham Gaisler
Memory controller with EDAC Cobham Gaisler
SPI Memory Controller Cobham Gaisler
SPI Memory Controller Cobham Gaisler
AHB/APB Bridge Cobham Gaisler
AHB/APB Bridge Cobham Gaisler
AHB/APB Bridge Cobham Gaisler
AHB/APB Bridge Cobham Gaisler
Memory controller with EDAC Cobham Gaisler
LEON3 Debug Support Unit Cobham Gaisler
AHB/APB Bridge Cobham Gaisler
AMBA Trace Buffer Cobham Gaisler
Multi-processor Interrupt Ctrl. Cobham Gaisler
Modular Timer Unit Cobham Gaisler
Modular Timer Unit Cobham Gaisler
GR716 AMBA Protection unit Cobham Gaisler
Clock gating unit Cobham Gaisler
Clock gating unit Cobham Gaisler
General Purpose Register Cobham Gaisler
LEON3 Statistics Unit Cobham Gaisler
AHB Status Register Cobham Gaisler
CCSDS TDP / SpaceWire I/F Cobham Gaisler
General Purpose Register Bank Cobham Gaisler
General Purpose Register Cobham Gaisler
GR716 AMBA Protection unit Cobham Gaisler
GR716 Bandgap Cobham Gaisler
GR716 Brownout detector Cobham Gaisler
GR716 Phase-locked loop Cobham Gaisler
Generic UART Cobham Gaisler
Generic UART Cobham Gaisler
Generic UART Cobham Gaisler
Generic UART Cobham Gaisler
Generic UART Cobham Gaisler
Generic UART Cobham Gaisler
AHB Status Register Cobham Gaisler
ADC / DAC Interface Cobham Gaisler
SPI Controller Cobham Gaisler
SPI Controller Cobham Gaisler
PWM generator Cobham Gaisler
General Purpose I/O port Cobham Gaisler
General Purpose I/O port Cobham Gaisler
AMBA Wrapper for OC I2C-master Cobham Gaisler
AMBA Wrapper for OC I2C-master Cobham Gaisler
GR716 Analog-to-Digital Conv Cobham Gaisler
GR716 Analog-to-Digital Conv Cobham Gaisler
GR716 Analog-to-Digital Conv Cobham Gaisler
GR716 Analog-to-Digital Conv Cobham Gaisler
GR716 Analog-to-Digital Conv Cobham Gaisler
GR716 Analog-to-Digital Conv Cobham Gaisler
GR716 Analog-to-Digital Conv Cobham Gaisler
GR716 Analog-to-Digital Conv Cobham Gaisler
GR716 Digital-to-Analog Conv Cobham Gaisler
GR716 Digital-to-Analog Conv Cobham Gaisler
GR716 Digital-to-Analog Conv Cobham Gaisler
GR716 Digital-to-Analog Conv Cobham Gaisler
I2C Slave Cobham Gaisler
I2C Slave Cobham Gaisler
PWM generator Cobham Gaisler
LEON3 Statistics Unit Cobham Gaisler
General Purpose Register Cobham Gaisler
Use command 'info sys' to print a detailed report of attached cores
grmon3> load zephyr/zephyr.elf
31000000 text 16.2kB / 16.2kB [===============>] 100%
300040A8 initlevel 40B [===============>] 100%
300040D0 rodata 484B [===============>] 100%
300042B4 datas 20B [===============>] 100%
300042C8 sw_isr_table 256B [===============>] 100%
300043C8 devices 36B [===============>] 100%
Total size: 16.98kB (1.91Mbit/s)
Entry point 0x31000000
Image zephyr/zephyr.elf loaded
grmon3> run
*** Booting Zephyr OS build zephyr-v2.4.0-788-gc82a8736a65e ***
Hello World! gr716a_mini
Running in simulation¶
The same application binary can be simulated with the TSIM3 LEON3 simulator.
$ tsim-leon3 -freq 20 -gr716
TSIM3 LEON3 SPARC simulator, version v3.0.2
Copyright (C) 2020, Cobham Gaisler - all rights reserved.
For latest updates, go to https://www.gaisler.com/
Comments or bug-reports to support@gaisler.com
Number of CPUs: 1
register windows: 31
system frequency: 20.000 MHz
using 64-bit time
Allocated 128 KiB local instruction RAM memory at 0x31000000
Allocated 64 KiB local data RAM memory at 0x30000000
Allocated 4096 KiB SRAM memory, in 1 bank at 0x40000000
Allocated 2048 KiB ROM memory at 0x01000000
Allocated 16384 KiB SPIM ROM memory at 0x02000000
Allocated 16384 KiB SPIM ROM memory at 0x04000000
tsim> load zephyr/zephyr.elf
section: text, addr: 0x31000000, size 16956 bytes
section: initlevel, addr: 0x30000000, size 40 bytes
section: rodata, addr: 0x30000028, size 484 bytes
section: datas, addr: 0x3000020c, size 20 bytes
section: sw_isr_table, addr: 0x30000220, size 256 bytes
section: devices, addr: 0x30000320, size 36 bytes
Read 438 symbols
tsim> run
Initializing and starting from 0x31000000
*** Booting Zephyr OS build zephyr-v2.4.0-788-gc82a8736a65e ***
Hello World! gr716a_mini