HadCon a.k.a. HadControl a.k.a. HadShoPoMo
HadCon is a general purpose IO module for detector and experiment control as well as for small data acquisition systems.
(
HADControl general purpose board)
Since its first application has been a power monitor for the Hades Shower Detector it has been formerly introduced and well known as HadShoPoMo (
Hades
Shower
Power
Monitor (
HADControl/HadShoPoMo general purpose board).
HadCon has an SoC on-board,
ETRAX 100LX MCM 4+16 from
AXIS (Wikipedia:
en/
de) - which will be discontinued, see the new
HadCon2.
Running a standard Linux the Etrax provides
"Connectivity to the world" via TCP/IP.
On the other side it connects via its internal serial interface to an ATMEL
AT90CAN128 microcontroller and optionally to an Xilinx CPLD.
Via this junction the ATMEL provides a multitude of possible connections to field buses and general I/O ports.
EPICS base and its applications, modules, and extensions can be cross-compiled to run on Etrax Axis' CRIS architecture (see section
Architecture: ETRAX's CRIS by AXIS
- Summarizing:
- CPU: AXIS ETRAX 100LX MCM 4+16
- Microcontroller: ATMEL AT90CAN128
- I2C (internal)
- 2 × 4-channel 8-Bit DAC - Digital-to-Analog Converter
- CANbus
- galvanically isolated CAN - High-speed CAN Transceiver
- optional external power supply
- SPI
- ADCs
- RS232
- 32 digital I/Os
- CPLD: Xilinx XCR3064XL-6CS48C
- 2 × Rotary Code Switches, hexadecimal coding
- Ericsson PME 5218TS switching regulator for up to 6A 3.3V power usable for other boards
- full EPICS support
Info
Layout
Powering
- ≈≥ 6V (, < 5 W), 5.5V to 8 V.
- internal power regulator
- Ericsson PME 5218TS switching regulator for up to 6A
- 3.3V power usable for other boards
CPU
- Datasheets:
- User documentation:
Kernel
- Kernel programming: formerly: Sergey Yurevic, HADES
USART - Universal Synchronous and Asynchronous serial Receiver and Transmitter
|
connects to |
/dev/ttyS1 |
ATMEL |
/dev/ttyS0 |
RS232-connector |
Microcontroller
USART - Universal Synchronous and Asynchronous serial Receiver and Transmitter
CPLD (Complex Programmable Logic Devices)
- Xilinx 64 Macrocell CPLD (XC)R3064XL
connects to:
Device* ↔ *Device |
Bus/Signal |
|
pin |
|
|
pins |
|
ETRAX |
D0 |
CPLD |
FB2 |
DATA |
D1 |
FB2 |
D2 |
FB2 |
D3 |
FB2 |
A1 |
FB2 |
ADDR |
A2 |
FB2 |
A3 |
FB2 |
A4 |
FB2 |
ATMEL |
PC0 (A8) |
FB3 |
PC |
PC1 (A9) |
FB3 |
PC2 (A10) |
FB3 |
PC3 (A11) |
FB3 |
PC4 (A12) |
FB3 |
PC5 (A13) |
FB3 |
PC6 (A14) |
FB3 |
PC7 (A15/CLK0) |
FB3 |
JCPLD1 |
1 |
FB4 |
CP_GP0 |
2 |
FB4 |
CP_GP1 |
3 |
FB4 |
CP_GP2 |
4 |
FB4 |
CP_GP3 |
5 |
FB4 |
CP_GP4 |
6 |
FB4 |
CP_GP5 |
7 |
FB4 |
CP_GP6 |
8 |
FB4 |
CP_GP7 |
I2C
2 × 4-channel 8-Bit DAC - Digital-to-Analog Converter
regulators
V
IN 5.5 - 8V → linear regulator: 5V → switching regulator: 3.3V
linear regulator VIN: 5.5V - 8V → VOUT: 5V
switching regulator: VOUT: 3.3V
galvanically isolated CAN-bus
Can - High-speed Can Transceiver
iCoupler Digital Isolator
Switches
Rotary Code Switches, hexadecimal coding
SW1 |
not mounted |
SW2 |
not mounted |
SWNB1 |
not mounted |
LEDs
|
pin |
color |
ETRAX |
PA6 |
??? |
PA7 |
??? |
Connectors
JDINOUT1 / JDINOUT2
- I/O of ATMEL
JDINOUT1 | Connector Pins | AT90CAN128 | | JDINOUT2 | Connector Pins | AT90CAN128 |
1 | PA0 (AD0 ) | 1 | PC0 (A8 ) |
2 | PA1 (AD1 ) | 2 | PC1 (A9 ) |
3 | PA2 (AD2 ) | 3 | PC2 (A10 ) |
4 | PA3 (AD3 ) | 4 | PC3 (A11 ) |
5 | PA4 (AD4 ) | 5 | PC4 (A12 ) |
6 | PA5 (AD5 ) | 6 | PC5 (A13 ) |
7 | PA6 (AD6 ) | 7 | PC6 (A14 ) |
8 | PA7 (AD7 ) | 8 | PC7 (A15/CLK0 ) |
9/10 | GND | 9/10 | GND |
JADC1
- ADC inputs of ATMEL
Connector Pins | AT90CAN128 | comments |
1 | PF0 (ADC0 ) | |
2 | PF1 (ADC1 ) |
3 | PF2 (ADC2 ) |
4 | PF3 (ADC3 ) |
|
5 | PF4 (ADC4 ) | overlap with JTAG inputs of ATMEL |
6 | PF5 (ADC5 ) |
7 | PF6 (ADC6 ) |
8 | PF7 (ADC7 ) |
|
9/10 | GND |
JTAG1
- JTAG connector
Connector Pins | Signal | comments |
2/13/14 | | not connected |
4/6/8/10/12 | GND | |
9/11 | TCK | 10kΩ to V3_3 |
3 | TDI | ← CPLD / Jumper J2 ← ATMEL |
7 | TDO | → ATMEL (→ CPLD) |
1 | TMS | |
5 | V3_3 | |
JCAN1
- JCAN1 CAN connector
JCAN1 | Connector Pins | Signal | comments |
1 | CANH | ↔ CAN - High-speed Can Transceiver ATA6660 ↔ iCoupler Digital Isolator ↔ ATMEL |
2 | CANL |
3/5 | VCAN_INPUT |
4/6 | GND_CAN |
JDAC1
- Output of the 2 4-channel DAC (DAC5574)
Connector Pins | Signal | Device | Device pin |
1 | DACOUT0 | UDAC1 | VoutA |
2 | DACOUT1 | VoutB |
3 | DACOUT2 | VoutC |
4 | DACOUT3 | VoutD |
5 | DACOUT4 | UDAC2 | VoutA |
6 | DACOUT5 | VoutB |
7 | DACOUT6 | VoutC |
8 | DACOUT7 | VoutD |
9/10 | GND | | |
JPS1
- mixed Signals DAC (DAC5574)
Connector Pins | Signal | Device | comments |
1/2 | V5_0_CON | |
3/4 | GND | |
5 | DACOUT0 | UDAC1 | VoutA |
6 | DACOUT1 | VoutB |
7 | DACOUT2 | VoutC |
8 | DACOUT3 | VoutD |
9/10 | POWER_ON | AT90CAN128 | PA7 (AD7) |
11 | ADC0 | PF0 (ADC0) |
12 | ADC1 | PF1 (ADC1) |
13 | ADC2 | PF2 (ADC2) |
14 | ADC3 | PF3 (ADC3) |
15 | ADC4 | PF4 (ADC4) |
16 | ADC5 | PF5 (ADC5) |
17 | ADC6 | PF6 (ADC6) |
18 | ADC7 | PF7 (ADC7) |
19/20 | GND | |
JSUBD1
Notes and Remarks
1-wire
- When driving 1-wire devices, typically via
JDINOUT2
, make sure to have (at least) 1 pull-up resistor of about 3.3kΩ on the data line of the 1-wire bus connected to the power VDD
.
- Recommended to have it at the master, e.g. at HadCon's connector
JDINOUT2
.
- Possible option for future, directly at the connector, when using one of
JDINOUT2's
pins as permanent power pin.
Tweaks: increase ATMEL_CLOCK
to 10MHz
- Bridge Flip-flop to increase
ATMEL_CLOCK
to 10MHz - to be able to transmit up to baud rates of 115200 you have to manipulate the hardware of the hadcon.
The clock signal of the oscillator X1
is 20 MHz. It is scaled down by two flip-flops (UFF1
, UFF2
) first to 10 MHz and then to 5 MHz.
Now 10 MHz are needed
Therefore UFF2
has to be bridged or short-cut, i.e.
- pin 5 of
UFF2
has to be disconnected from its pad and removed
- A cable has to be soldered connecting pin 1 of
UFF2
to the solder pad of pin 5
Bug: Switches
-
SW2
-
SW2
is not correct wired, don't use it
Firmware
Microcontroller
e.g. see:
CPLD
--
PeterZumbruch - 16 Jul 2013