MityCAMAC
Links
- MityARM
- inventory https://ladd00.triumf.ca/~daqinv/inventory3/public/index.php/daqinv/lists/162
- (dead) redmine project https://edev.triumf.ca/projects/edevel00195
- (dead) svn checkout https://edev.triumf.ca/svn/edevel00195
- https://bitbucket.org/ttriumfdaq/gpmc-camac/src/master/
- firmware sources: see mess in daq00:/home/olchansk/daq/CAMAC-Crate-Controller. hint: never converted from svn to git.
Getting Started
- For general information on the Critical Link ARM SOM, start here MityARM
- Follow instruction at MityARM to login into Linux
- Build and install GPMC-CAMAC drivers
- Load the FPGA firmware
- Run CAMAC tests
BOOTCONFIG
BOOTCONFIG settings:
- CL eval board:
- BOOTCONFIG[0..11] are SYSBOOT[0..11]
- boot from SD: all open, [3] closed
- boot from on-SoM NAND: all open, close [2], [3], [8], [9], [10], [11] (6 jumpers)
- CAMAC board Rev1:
- top-to-bottom: B0..4,G0..5,R0 correspond to LCD_DATA[0..11] are SYSBOOT[0..11]
- boot from SD: all open, B3 closed
- boot from on-SoM NAND: all open, close B2, B3, G3, G4, G5, R0 (6 jumpers)
NOTES:
- boot from EMAC1 requires PHY connection to RGMII1, CLeval and CAMAC boards connected PHY to RGMII2.
SYSBOOT modes: http://ladd00.triumf.ca/~olchansk/MityARM/Docs/spruh73g.pdf table 26-7
SYSBOOT[4..0] 00000 - reserved 00001 - UART0 00010 - UART0 00011 - UART0 00100 - UART0 00101 - UART0 00110 - EMAC1, SYSBOOT[7..6]: 00=MII, 01=RMII, 10=reserved, 11=RGMII 00111 - EMAC1 01000 - EMAC1 01001 - EMAC1 01010 - EMAC1 01011 - USB0 01100 - USB0 01101 - USB0 01110 - reserved 01111 - fast external boot 10000 - XIP 10001 - XIP 10010 - NAND 10011 - NAND 10100 - NAND 10101 - NAND-I2C 10110 - SPI0 10111 - MMC0 <---- default (boot from SD flash) - other bits - don't care 11000 - SPI0 11001 - SPI0 11010 - XIP 11011 - XIP 11100 - MMC1 11101 - reserved 11110 - reserved 11111 - fast external boot
GPMC interface
0x8 = CS0 - on-SoM NAND flash (boot loader) 0x9 = CS1 - not used 0xa = CS2 - not used 0xb = CS3 - CAMAC interface
./gpmc 0x0a000000 0x12ff5678
CAMAC interface
General information:
- CAMAC interface responds to GPMC CS3
- the host CPU should always issue 32-bit read and write cycles on even addresses (last 2 bits of address set to 0)
- address bits 15..12 address the FPGA GPMC registers (4 bits, 16 registers)
- remaining address bits are used for encoding CAMAC operations
- all GPMC registers are 32-bit wide
LEDs (Rev1)
---- gpmc 0x0008 |OO| 0x0040 ACB RQ (lemo output "request") busy 0x0010 |OO| 0x0080 grant_in (lemo input) ACB RQ 0x0020 |OO| 0x0100 ACB RI -----------------------------------------------------
Front Panel LEMO connectors (Rev1)
top | | busy out | inhibit in | grant in | grant out | request out | bottom
Install the software
- Get and build the software tools
ssh daquser@armdaq02 mkdir packages cd packages git clone https://bitbucket.org/ttriumfdaq/gpmc-camac.git cd gpmc-camac make CROSS_COMPILE= ls -l gpmc camac srunner_gpmc
-bash-4.2$ ls -l gpmc camac srunner_gpmc -rwxrwxr-x 1 daquser users 668337 Dec 6 22:43 camac -rwxrwxr-x 1 daquser users 654454 Dec 6 22:43 gpmc -rwxrwxr-x 1 daquser users 692961 Dec 6 22:43 srunner_gpmc -bash-4.2$
- build kernel driver
cd gpmc-camac/kernel-module make CROSS_COMPILE= ls -l gpmc_camac_module.ko
-bash-4.2$ ls -l gpmc_camac_module.ko -rw-rw-r-- 1 daquser users 93154 Dec 6 22:48 gpmc_camac_module.ko -bash-4.2$
- if /daq/daqshare/olchansk is not available, building the kernel module will fail. To proceed, get the correct kernel sources and cross-compiler:
cd ~/packages git clone https://bitbucket.org/ttriumfdaq/linux-mityarm-335x.git git clone https://dd1@bitbucket.org/ttriumfdaq/u-boot-mityarm-335x.git # not needed for building kernel module cd gpmc-camac/kernel-module edit Makefile, change KDIR to $HOME/packages/linux-mityarm-335x and CROSS_COMPILE=location of cross-compiler tools
- Note: gpmc-camac kernel module for Linux kernel uImage-KO10 (uname -a "Linux armdaq02.triumf.ca 3.2.0-00377-gb23ecfb-dirty #33 Sun Nov 13 05:10:32 UTC 2016 armv7l armv7l armv7l GNU/Linux") *MUST* be built using native gcc (make CROSS_COMPILE=).
- install kernel drivers
cd $HOME/packages/gpmc-camac/kernel-module make install su - ### login as root ### follow instructions printed by "make install"
- verify that debugfs is mounted on /sys/kernel/debug: ls -l /sys/kernel/debug/omap_mux/
- run /etc/rc.local or reboot
Firmware revisions
Run "./camac" to read the firmware revision number (reg0)
- 0x14120723 - ???
- 0x15012159 - working Rev1, old/new "done" bit.
- 0x15120106 - Rev2 AUX (ok on Rev1 board)
- 0x15120946 - Rev2 MASTER
- note: LAM register does not seem to work in these firmware (register 7 LAM bits are always 1)
Firmware sources
Firmware sources are stored on the edev redmine system:
svn checkout https://edev.triumf.ca/svn/edevel00195
Firmware update
- test the active serial flash programmer interface
$ ./srunner_gpmc -id -16 /dev/null Operation: Identify EPCS Device bb_open! Info: Found GPMC 0xABCD FlashProgrammer interface. Info: Silicon ID - 0x14 Info: Serial Configuration Device - EPCS16 Operation Completed!!!
- write pof file to flash memory
$ ./srunner_gpmc -program -16 CAMAC_Crat_Controller.pof Operation: Programming EPCS Info: Programming file: "CAMAC_Crat_Controller.pof" opened. Info: File size: 2097359 bytes. Skipping POF file header: start of data at 154, file size 2097359, remain 2097205, modulo 1024 = 53 Final file size 2097152 bb_open! Info: Found GPMC 0xABCD FlashProgrammer interface. Info: Silicon ID - 0x14 Info: Serial Configuration Device - EPCS16 Info: Erasing... ....................Info: Erase Done Info: Start programming process. Info: Programming 8192 pages... Info: Programming successful bb_close! Operation Completed!!!
- reboot the FPGA
lxdaq30:LINUX$ ./camac --reboot CAMAC firmware: 0x14120407 rebooting FPGA... CAMAC firmware: 0x14120711 lxdaq30:LINUX$
Register 1 - command
Write-only 32 bit register:
command 1: CMD_reset: 0x command 2: CMD_reconfigure command 3: CMD_TestMode command 4: CMD_Zero command 5: CMD_Clear command 6: CMD_Inhibit command 7: CMD_WriteLED: 0xXXXX0007 -> write 0xXXXX to the LED bus
Register 2 - test read/write register
32-bit read/write register for testing GPMC bus communications
Register 3 - FPGA flash programmer
active-serial flash programmer interface (see srunner, srunner_vme and srunner_gpmc).
Register 4 and 5 - CAMAC command, write data and read data
A write cycle to the GPMC bus carries 16 bits of address and 32 bits of data:
Address 16 bits (Quartus cmd_A[15..0]) ---- 15..12 - GPMC register address -- 11 - not used 10 - not used 9 - not used 8..4 - CAMAC N[4..0] -- 3 - CAMAC F[4] 2 - CAMAC_start - set this bit to 1 to trigger a CAMAC operation. Value 0 is for testing the communications without running the CAMAC sequencer. 1 - not accessible 0 - not accessible ---- Data 32 bits: (Quartus cmd_D[31..0]) ---- 31..28 - CAMAC F[3..0]. (CAMAC F[4] is cmd_A[3]) 27..24 - CAMAC A[3..0] -- 23..0 - CAMAC write lines W[24..1] ----
To verify correct data transmission on the GPMC bus and correct latching of the data in the CAMAC part of the FPGA, the 32 bits of data can be read back through register 4 and the 16 bits of address can be read through the low 16 bits of register 5. Reading from these registers is not necessary for operating CAMAC cycles.
Register 6 - CAMAC status and read data
Read-only 32 bit register:
31 - not used 30 - not used 29 - not used 28 - BUSY_OUT -- 27 - BUSY 26 - set to 1 when CAMAC cycle is finished and new data is ready 25 - CMD_ACCPT 24 - RESPONSE -- 23..0 - CAMAC read data[24..1]
Register 7 - CAMAC LAM and interface status
Read-only 32-bit register:
31 - EXT_BUSY 30 - EXT_INHIBIT 29 - EXT_GRANT_IN 28 - EXT_GRANT_OUT -- 27 - ACB ACL 26 - ACB RI 25 - ACB RQ 24 - not used -- 23..0 - CAMAC LAM from slots 24..1
Software commands
./gpmc # initialize the GPMC interface ./gpmc 0x0b000000 # read firmware revision ./gpmc 0x0b001000 2 # reconfigure the fpga ./srunner_gpmc -id -64 /dev/null # use the flash programmer to read the flash chip identity ./srunner_gpmc -program -16 ../QUARTUS/output_files/CAMAC_Crat_Controller.pof # write POF file into the flash (remember to do an FPGA reconfigure to reboot into the new firmware) ./gpmc 0x0b001000 0x01f80007 # write to the LEDs ./gpmc 0x0b0040ac 0x00123456 # run some camac cycle ./gpmc 0x0b001000 0x80000003 # enable test mode ./gpmc 0x0b004174 0x00123456 # read from slot 23 - "manual input register" ./gpmc 0x0b00416c 0x00000000 # write to slot 22 - dataway display ./gpmc 0x0b00416c 0x00ffffff # write to slot 22 - dataway display ./gpmc 0x0b006000 # read CAMAC read data and status ./gpmc 0x0a00012c # reconfigure FPGA thorugh the CS2 line
./gpmc # initialize the GPMC interface ./camac # read firmware revision, etc ./camac --reboot # reboot the FPGA ./camac --scan # scan CAMAC crate ./camac --gpmctest1 # test GPMC bus integrity - read/write test ./camac --gpmctest2 # test GPMC bus integrity - both data and address read/write test ./camac --testleds # test front panel LEDs - they should blink at 1Hz ./camac --testlemo # test front panel LEMOs - the voltages should alternate between 0V and ???V at 1Hz ./camac r # read CAMAC register r, e.g. \"./camac 0\" to read register 0 - firmware revision ./camac w v # write CAMAC register w with value v, e.g. \"./camac 2 0xabcd\" to write 0xabcd to test register 2 ./camac n f a w # run a CAMAC cycle with given N, F, A, write data W
List of on-board hardware
- on SoM: http://www.mitydsp.com/products-services/cpu-engines/mityarm-3359 http://ladd00.triumf.ca/~olchansk/MityARM/Docs/MityARM-335x_Datasheet.pdf
- TI 3354/3359 CPU: http://ladd00.triumf.ca/~olchansk/MityARM/Docs/spruh73g.pdf
- 256MB or 512MB NAND flash: GPMC CS#0, 8-bit wide
- 8MB serial NOR flash: SPI1 interface
- configuration EPROM: I2C1 interface (module serial number, ethernet MAC, etc)
- 256MB DDR2 or 512MB DDR3 RAM, 16-bit interface, 300 or 400MHz
- power management chip tps65910: I2C1, I2C2 interface, http://ladd00.triumf.ca/~olchansk/MityARM/Docs/tps65910.pdf
- on CAMAC board:
- Micrel KSZ9021RL GigE ethernet PHY: Davinci_MDIO interface http://ladd00.triumf.ca/~olchansk/MityARM/Docs/ksz9021rl-rn_ds.pdf
- Altera Cyclone4 FPGA EP4CE30F23: GPMC bus
End
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