Table of Contents
SPEC Scaler
| BusPath | VendorID | Product | BaseAddress(Hex) | Description |
|---|---|---|---|---|
| 1 | 000000000000ce42 | ff07fc47 | 0x1000 | WR-Periph-Syscon |
| 2 | 000000000000ce42 | e2d13d04 | 0x2000 | WR-Periph-UART |
| 3 | 000000000000ce42 | 779c5443 | 0x3000 | WB-OneWire-Master |
| 4 | 0000000000000651 | eef0b198 | 0x2000 | WB4-Bridge-GSI |
| 4.1 | 000000000000ce42 | 123c5443 | 0x3000 | WB-I2C-Master |
| 4.2 | 000000000000ce42 | 779c5443 | 0x3100 | WB-OneWire-Master |
| 4.3 | 000000000000a8df | 441c5145 | 0x3200 | WB-GPIO-RAW |
| 5 | 000000000000a8df | 441c5146 | 0x5000 | WB-SCALER |
Final design
Initialization
- configure inputs
- direction (WB-GPIO-RAW⇒DDR)
- termination (WB-GPIO-RAW⇒TR)
- setup input map registers
- WB-SCALER⇒CounterMap
- WB-SCALER⇒LatchMap
- WB-SCALER⇒StartStopMap
- reset all counters by writing 1 to WB-SCALER⇒SC - empty/reset bit
- enable scaler (optional) by writing 1 to WB-SCALER⇒SC - running/start bit
Data readout
- Check status register (empty bit) if new data is available
- Latch new data into circular buffer (WB-SCALER⇒OCounter) by writing load_fifo bit
- Read OCounter register four times.
FMC
- repository: LOBI IP Cores
- repository: FMC HDL
FMC Dio 5ch TTL
TODO
| BusPath | VendorID | Product | BaseAddress(Hex) | Description |
|---|---|---|---|---|
| 1 | 000000000000???? | ???????? | 0x0000 | WB4-Bridge-GSI |
| 2 | 000000000000???? | ???????? | 0x1000 | WR-Periph-1Wire |
| 3 | 000000000000???? | ???????? | 0x1100 | WB-I2C-Master |
| 4 | 000000000000???? | ???????? | 0x1200 | WB-GPIO-RAW |
WR Cores
WB Scaler
- master_mode ⇒ PIPELINED
- master_granularity ⇒ WORD
Register map
| Register | Address | Default Value | Description |
|---|---|---|---|
| SC | 0b000 | 0x00000001 | Status and control |
| CounterMap | 0b001 | 0x08040201 | |
| LatchMap | 0b010 | 0x00000010 | Bit 8 wired to software latch |
| StartStopMap | 0b011 | 0x00000080 | Bit 8 wired to software start/stop |
| CCounter | 0b100 | 0x00000000 | |
| LCounter | 0b101 | 0x00000000 | |
| OCounter | 0b110 | 0x00000000 | |
| FCounter | 0b111 | 0xFFFFFFFF |
Register description
SC (0b000)
| Bits | hex | Name | R/W | Description |
|---|---|---|---|---|
| 0 | (0x01) | empty/reset | rw | |
| 1 | full | r | ||
| 2 | threshold | r | ||
| 3 | (0x08) | running/start | rw | |
| 4 | (0x10) | stop | w | |
| 5 | (0x20) | load_current | w | |
| 6 | (0x40) | load_fifo | w | |
| 7 | (0x80) | software_latch | w | |
| 11 - 8 | counter_ovf | r | ||
| 12 | load_current_auto | rw | |
CounterMap (0b001)
| Bits | Name | R/W | Description |
|---|---|---|---|
| 7 - 0 | counter[0] | rw | |
| 15 - 8 | counter[1] | rw | |
| 23 - 16 | counter[2] | rw | |
| 31 - 24 | counter[3] | rw |
WB GPIO Raw
- g_master_mode ⇒ CLASSIC
- g_master_granularity ⇒ WORD
Register map
| Register | Address | Default Value | Description |
|---|---|---|---|
| CODR | 0b000 | 0x00000000 | clear output register |
| SODR | 0b001 | 0x00000000 | set output register |
| DDR | 0b010 | 0x00000000 | data direction register |
| PSR | 0b011 | 0x00000000 | pin state register |
| TR | 0b100 | 0x00000000 | termination register |
| AFR | 0b101 | 0x00000000 | alternative function register |