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README
======
This README file discusses the port of NuttX to “GR-ROSE” board produced by Gadget Renesas.This board features the RX65N (R5F565NEHDFP 100pin QFP)
Contents
========
- Board Features
- Status/Open Issues
- Serial Console
- LEDs
- Networking
- RTC
- Debugging
Board Features
==============
- Micro controller - RX65N (R5F565NEHDFP 100pin QFP) RXv2 core [34 CoreMark/mA]
- ROM/RAM - 2MB/640KB
- Operating Frequency - 120MHz(12MHz 10 Multiplication)
- RTC Clock - 32.768kHz
- Sensors - Temperature(inside MCU)
- ROS I/F - Ethernet, USB(rosserial)
- Serial Servo I/F - TTL x 4, RS-485 x 1
- Analog I/F - ADC(12bit) x 6, DAC x 1
- Wireless - IEEE 802.11b/g/n
- PMOD I/F - 1 (I2C, SPI, UART)
- External power supply - USB VBUS or 4.5V～18V
- Supply to external - 3.3V, 5V
See the RX65N GRROSE website for further information about this board:
- http://gadget.renesas.com/en/product/rose.html
Status/Open Issues
==================
Ethernet
---------
1.Observed instability in Link Management, due to difference in hardware design.(No Separate Interrupt line for PHY)
2.Currently tested only ping and udpblaster application.
3. Executed long run ping and udpblaster stress test for 12 hrs. Code is able to execute for 12hrs without any breakage.
Serial Console
==============
RX65N GRROSE supports 12 serial ports (SCI0 - SCI12), however only 5 ports can be tested(SCI0, SCI1, SCI2,
SCI5 & SCI6).
Please find the pin configurations for SCI0, SCI1, SCI2, SCI5 & SCI6
SCI0 Pin Configuration :
-----------
RX65N GRROSE
Function
-----------
P21 RXD0
P20 TXD0
------------
SCI1 Pin Configuration :
-----------
RX65N GRROSE
Function
-----------
P30 RXD1
P26 TXD1
------------
SCI2 Pin Configuration :
-----------
RX65N GRROSE
Function
-----------
P12 RXD2
P13 TXD2
------------
SCI3 Pin Configuration :
-----------
RX65N GRROSE
Function (connected to WiFi module)
-----------
P25 RXD3
P23 TXD3
------------
SCI5 Pin Configuration :
-----------
RX65N GRROSE
Function
-----------
PC2 RXD5
PC3 TXD5
------------
SCI6 Pin Configuration :
-----------
RX65N GRROSE
Function
-----------
P33 RXD6
P32 TXD6
------------
SCI8 Pin Configuration :
-----------
RX65N GRROSE
Function (Half duplication mode with RS485 driver)
-----------
PC6 RXD8
PC7 TXD8
PC5 Direction (L=TX, H=RX)
Serial Connection Configuration
--------------------------
1. GRROSE board needs to be connected to PC terminal, using USB to Serial Chip.
2. Connect TX of USB to serial chip to RX of SCIX(0,1,2,5,6)
3. Connect RX of USB to serial chip to TX of SCIX(0,1,2,5,6)
4. Connect GND to GND pin.
5. Configure Teraterm to 115200 baud.
LEDs
====
The RX65N GRROSE board has 2 LED's, 1 Power LED(LED3) and 2 User LED's(LED1, LED2),which are enabled through software.
If enabled the LED is simply turned on when the board boots
successfully, and is blinking on panic / assertion failed.
Networking
==========
Ethernet Connections
-----------
------ ---------
RX65N
GRROSE Ethernet
Pin Function
------ ---------
PA4 ET0_MDC
PA3 ET0_MDIO
PB2 REF50CK0
PB7 RMII0_CRS_DV
PB1 RMII0_RXD0
PB0 RMII0_RXD1
PB3 RMII0_RX_ER
PB5 RMII0_ETXD0
PB6 RMII0_ETXD1
PB4 RMII0_TXD_EN
PA5 ET0_LINKSTA
PA6_ET_RST ETHER reset
------ ---------
NuttX Configurations
---------------
The following configurations, need to be enabled for network.
CONFIG_RX65N_EMAC=y : Enable the EMAC Peripheral for RX65N
CONFIG_RX65N_EMAC0=y : Enable the EMAC Peripheral for RX65N
CONFIG_RX65N_EMAC0_PHYSR=30 : Address of PHY status register on LAN8720A
CONFIG_RX65N_EMAC0_PHYSR_100FD=0x18 : Needed for LAN8720A
CONFIG_RX65N_EMAC0_PHYSR_100HD=0x08 : " " " " " "
CONFIG_RX65N_EMAC0_PHYSR_10FD=0x14 : " " " " " "
CONFIG_RX65N_EMAC0_PHYSR_10HD=0x04 : " " " " " "
CONFIG_RX65N_EMAC0_PHYSR_ALTCONFIG=y : " " " " " "
CONFIG_RX65N_EMAC0_PHYSR_ALTMODE=0x1c : " " " " " "
CONFIG_RX65N_EMAC0_RMII=y
CONFIG_RX65N_EMAC0_PHYADDR=0 : LAN8720A PHY is at address 1
CONFIG_SCHED_WORKQUEUE=y : Work queue support is needed
CONFIG_SCHED_HPWORK=y : High Priority Work queue support
CONFIG_SCHED_LPWORK=y : Low Priority Work queue support
Using the network with NSH
--------------------------
The IP address is configured using DHCP, using the below mentioned configurations :
The IP address is configured using DHCP, using the below mentioned configurations :
CONFIG_NETUTILS_DHCPC=y
CONFIG_NETUTILS_DHCPD=y
CONFIG_NSH_DHCPC=y
CONFIG_NETINIT_DHCPC=y
nsh> ifconfig
eth0 HWaddr 00:e0:de:ad:be:ef at UP
IPaddr:10.75.24.53 DRaddr:10.75.24.1 Mask:255.255.254.0
You can use ping to test for connectivity to the host (Careful,
Window firewalls usually block ping-related ICMP traffic). On the
target side, you can:
nsh> ping 10.75.24.250
PING 10.75.24.250 56 bytes of data
56 bytes from 10.75.24.250: icmp_seq=1 time=0 ms
56 bytes from 10.75.24.250: icmp_seq=2 time=0 ms
56 bytes from 10.75.24.250: icmp_seq=3 time=0 ms
56 bytes from 10.75.24.250: icmp_seq=4 time=0 ms
56 bytes from 10.75.24.250: icmp_seq=5 time=0 ms
56 bytes from 10.75.24.250: icmp_seq=6 time=0 ms
56 bytes from 10.75.24.250: icmp_seq=7 time=0 ms
56 bytes from 10.75.24.250: icmp_seq=8 time=0 ms
56 bytes from 10.75.24.250: icmp_seq=9 time=0 ms
56 bytes from 10.75.24.250: icmp_seq=10 time=0 ms
10 packets transmitted, 10 received, 0% packet loss, time 10100 ms
On the host side, you should also be able to ping the RX65N-GRROSE:
$ ping 10.75.24.53
Configure UDP blaster application as mentioned below :
CONFIG_EXAMPLES_UDPBLASTER_HOSTIP=0x0a4b1801 (10.75.24.1) ------> Gateway IP
CONFIG_EXAMPLES_UDPBLASTER_NETMASK=0xfffffe00 (255.255.254.0) --------> Netmask
CONFIG_EXAMPLES_UDPBLASTER_TARGETIP=0x0a4b189b (10.75.24.155) ---------> Target IP
RTC
==========
NuttX Configurations
---------------
The configurations listed in Renesas_RX65N_NuttX_RTC_Design.doc need to be enabled.
RTC Testing
------------------
The test cases mentioned in Renesas_RX65N_RTC_Test_Cases.xls are to be executed
as part of RTC testing.
The following configurations are to be enabled as part of testing RTC examples.
CONFIG_EXAMPLES_ALARM
CONFIG_EXAMPLES_PERIODIC
CONFIG_EXAMPLES_CARRY
Debugging
==========
1. NuttX needs to be compiled in Cygwin.
The following Configuration needs to be set, in order to do source level debugging.
CONFIG_DEBUG_SYMBOLS = y (Set this option, using menuconfig only, DO NOT Enable this as default configuration).
2. Download & Install Renesas e2studio IDE.
3. Load the project(NuttX built on Cygwin) as Makefile project with existing code
4. Right click on the project, and select Debug Configurations.
5. The binary(NuttX) needs to be loaded using E1/E2 Emulator.
6. Select the Device name as R5F565NE and Emulator as E1/E2(whichever is being used)
7. Select Connection type as FINE.
8. Load and run the binary.
Flashing NuttX
===============
Alternatively, NuttX binary can be flashed using Renesas flash programmer tool without using e2 studio/Cygwin
Below are the steps mentioned to flash NuttX binary using Renesas flash programmer tool(RFP).
1.In order to flash using Renesas flash programmer tool, nuttx.mot file should be generated.
2. Add the following lines in tools/Makefile.unix file :
ifeq ($(CONFIG_MOTOROLA_SREC),y)
@echo "CP: $(NUTTXNAME).mot"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) $(BIN) -O srec -I elf32-rx-be-ns $(NUTTXNAME).mot
endif
3. Add CONFIG_MOTOROLA_SREC=y in defconfig file or choose make menucofig->Build Setup-> Binary Output Format->
Select Motorola SREC format.
4. Download Renesas flash programmer tool from https://www.renesas.com/in/en/products/software-tools/tools/programmer/renesas-flash-programmer-programming-gui.html#downloads
5. Refer to the user manual document, for steps to flash NuttX binary using RFP tool.
Changes Made in NuttX 8.2 Code
================================
1. In wd_start.c file, in function wd_expiration(), typecasting is done when the signal handler nxsig_timeout() is invoked.
2. In rtc.c, (drivers/timers/rtc.c) file, in function rtc_periodic_callback(), alarminfo->active = false is commented.
The reason being, periodic interrupt should not be disabled. Uncommenting the above mentioned line (alarminfo->active = false), will make the periodic interrupt come only once.
