Table of contents
Overview
CR00140 SC CPLD design for MAX10 with designator U25: 10M08SAU169C8G.
Feature Summary
- Receiving, levelshifting and forwarding of
- control,
- sensor, measurement and
- status signals
- security logic
- Push Buttons
- USR LED
Firmware Revision and supported PCB Revision
See Document Change History.
Product Specification
Port Description
VHDL Port name | Direction | SC CPLD Pin | CPLD Bank | Connected to | Function | Notes |
---|---|---|---|---|---|---|
A0_P | in | J8 | 3 | J9-14 | PWM signal phase B, low | - |
A0_N | in | K8 | 3 | J9-16 | PWM signal phase D, high | - |
A1_P | in | M13 | 3 | J9-20 | PWM signal phase A, low | - |
A1_N | in | M12 | 3 | J9-22 | PWM signal phase C, high | - |
A2_P | in | M9 | 3 | J9-26 | PWM signal phase D, low | - |
A2_N | in | M8 | 3 | J9-28 | PWM signal phase C, low | - |
A3_P | in | N8 | 3 | J9-32 | PWM signal phase B, high | - |
A3_N | in | N7 | 3 | J9-34 | PWM signal phase A, high | - |
A4_P | out | M7 | 3 | J9-38 | current measurement phase B | - |
A4_N | out | N6 | 3 | J9-40 | push button S2 signal | - |
A5_P | out | K5 | 3 | J9-44 | motor disable signal | disabled when high |
A5_N | J5 | 3 | J9-46 | CPLD - CRUVI communication | currently not used | |
B0_P | N5 | 3 | J9-15 | CPLD - CRUVI communication | currently not used | |
B0_N | in | N4 | 3 | J9-17 | LED D2 signal | active high |
B1_P | J7 | 3 | J9-21 | CPLD - CRUVI communication | PWM enable | |
B1_N | in | K7 | 3 | J9-23 | clock input for ADCs | 5-20 MHz |
B2_P | out | L11 | 3 | J9-27 | Encoder/Sensor signal A | - |
B2_N | out | M11 | 3 | J9-29 | Encoder/Sensor signal B | - |
B3_P | out | L10 | 3 | J9-33 | Encoder/Sensor signal I | - |
B3_N | out | M10 | 3 | J9-35 | Back EMF signal phase B | - |
B4_P | out | J6 | 3 | J9-398 | Back EMF signal phase C | - |
B4_N | out | K6 | 3 | J9-41 | Back EMF signal phase A | - |
B5_P | out | L5 | 3 | J9-45 | current measurement phase A | - |
B5_N | out | L4 | 3 | J9-47 | voltage measurement DC_LINK | - |
HSIO | N9 | 3 | J9-2 | CPLD - CRUVI I/O communication | currently not used | |
HSO | N10 | 3 | J9-6 | |||
RESET | M5 | 3 | J9-8 | |||
HSI | N12 | 3 | J9-10 | |||
TDI | F5 | 1B | J9-51, J10-9 | JTAG / user IO CPLD firmware dependent | JTAG pinsharing currently not enabled | |
TDO | F6 | 1B | J9-53, J10-3 | JTAG / user IO CPLD firmware dependent | ||
TMS | G1 | 1B | J9-55, J10-5 | JTAG / user IO CPLD firmware dependent | ||
JTAGEN | E5 | 1B | J9-57 | JTAG enable CPLD firmware dependent | ||
TCK | G2 | 1B | J9-59, J10-1 | JTAG / user IO CPLD firmware dependent | ||
SMB_ALERT | K2 | 2 | J9-3 | CPLD - CRUVI I/O communication | currently not used | |
SMB_SDA | H5 | 2 | J9-5 | |||
SMB_SCL | H4 | 2 | J9-7 | |||
REFCLK | M2 | 2 | J9-11 | |||
BUTTON1 | in | C10 | 8 | S2 | User button forwarded to CRUVI | activ low |
BUTTON2 | in | B10 | 8 | S1 | Motor control enable/disable | activ low |
ENC_A | in | A10 | 8 | U13-13 | Sensor/Encoder input channel A | - |
ENC_B | in | A9 | 8 | U13-12 | Sensor/Encoder input channel B | - |
ENC_I | in | A11 | 8 | U13-14 | Sensor/Encoder input channel I | - |
LED0 | out | D6 | 8 | D2 | User LED forwarded from CRUVI | active high |
LED1 | out | B2 | 8 | D1 | Status LED | blinking → motor control aktiv, static on → system ok and motor control disabled |
M_BEMF_B_D | in | B5 | 8 | U15-13 | Back EMF signal phase B | - |
M_BEMF_C_D | in | A5 | 8 | U15-12 | Back EMF signal phase C | - |
M_BEMF_A_D | in | A4 | 8 | U15-14 | Back EMF signal phase A | - |
M_PWM_AH | out | F1 | 1A | U8-2 | Phase A half bridge high (DC_LINK) side driver signal | - |
M_PWM_AL | out | E3 | 1A | U8-3 | Phase A half bridge low (PGND) side driver signal | - |
M_PWM_BH | out | E1 | 1A | U9-2 | Phase B half bridge high (DC_LINK)side driver signal | - |
M_PWM_BL | out | D1 | 1A | U9-3 | Phase B half bridge low (PGND) side driver signal | - |
M_PWM_CH | out | E4 | 1A | U10-2 | Phase C half bridge high (DC_LINK)side driver signal | - |
M_PWM_CL | out | C1 | 1A | U10-3 | Phase C half bridge low (PGND) side driver signal | - |
M_PWM_DH | out | C2 | 1A | U11-2 | Phase D half bridge high (DC_LINK) side driver signal | - |
M_PWM_DL | out | B1 | 1A | U11-3 | Phase D half bridge low (PGND) side driver signal | - |
SD_IA | in | E6 | 8 | U3-6 | Current measurement phase A | - |
SCLK_A | out | B3 | 8 | U3-7, U5-7 | Clock for ADC for current measurement phase A and B | (5-20 MHz) |
SD_V | in | B4 | 8 | U7-6 | Voltage measurement DC_LINK | - |
SD_IB | in | A2 | 8 | U5-6 | Current measurement phase B | - |
SCLK_V_A | out | A3 | 8 | U7-7 | Clock for ADC for voltage measurement DC_LINK | (5-20 MHz) |
M_DISABLE_D_D | out | J1 | 2 | U11-5 | Halfe bridge disable phase D | disabled when high, pull up connected, weak pull up enabled |
M_DISABLE_A_D | out | M1 | 2 | U8-5 | Halfe bridge disable phase A | disabled when high, pull up connected, weak pull up enabled |
M_DISABLE_B_D | out | L2 | 2 | U9-5 | Halfe bridge disable phase B | disabled when high, pull up connected, weak pull up enabled |
M_DISABLE_C_D | out | K1 | 2 | U10-5 | Halfe bridge disable phase C | disabled when high, pull up connected, weak pull up enabled |
REFCLK | M2 | 2 | J9-11 | - | currently not used | |
RST | M3 | 2 | J10-6 | - | currently not used (CPLD RESET) | |
UART_RX | N2 | 2 | J10-7 | - | currently not used/implemented (UART) | |
UART_TX | N3 | 2 | J10-8 | |||
CLK_25MHZ | in | H6 | 2 | U26-3 | Clock input for accurate 25 Mhz. | currently not used |
Motor driver PWM signals
CRUVI interface signals are utilized to drive the half bridge PWM motor driver signals. They are logical connected to prevent driving the high and low simultanously:
M_PWM_AH <= '1' when ((A3_N='1') and (A1_P ='0')) else '0';
M_PWM_AL <= '1' when ((A1_P='1') and (A3_N ='0')) else '0';
M_PWM_BH <= '1' when ((A3_P='1') and (A0_P ='0')) else '0';
M_PWM_BL <= '1' when ((A0_P='1') and (A3_P ='0')) else '0';
M_PWM_CH <= '1' when ((A1_N='1') and (A2_N ='0')) else '0';
M_PWM_CL <= '1' when ((A2_N='1') and (A1_N ='0')) else '0';
M_PWM_DH <= '1' when ((A0_N='1') and (A2_P ='0')) else '0';
M_PWM_DL <= '1' when ((A2_P='1') and (A0_N ='0')) else '0';
Motor disable
The M_DISABLE signal set via push button S1 is used to disable all 4 motor drivers. This signal is logical or to the PWM enable signal from B1_P on the CRUVI connector.
M_DISABLE_OUT <= M_DISABLE or not B1_P;
M_DISABLE_A_D <= M_DISABLE_OUT;
M_DISABLE_B_D <= M_DISABLE_OUT;
M_DISABLE_C_D <= M_DISABLE_OUT;
M_DISABLE_D_D <= M_DISABLE_OUT;
The motor disable signal is also forwarded to the CRUVI interface:
A5_P <= M_DISABLE;
Sensor/Encoder, Back EMF
Sensor signals are forwarded to the CRUVI interface:
B2_P <= ENC_A;
B2_N <= ENC_B;
B3_P <= ENC_I;
B3_N <= M_BEMF_B_D;
B4_N <= M_BEMF_A_D;
B4_P <= M_BEMF_C_D;
Current and voltage measurement
Data signals from the 3 ADCs are forwarded to the CRUVI interface:
B5_N <= SD_V;
B5_P <= SD_IA;
A4_P <= SD_IB;
The corresponding clock signals are derived from the CRUVI interface signal B1_N:
SCLK_V_A <= B1_N;
SCLK_A <= B1_N;
Button
Motor disable button
S1 is utilized to switch the motor control on/off. The button is debounced. On press it switches the state of M_DISABLE signal and sets the corresponding LED status.
User Button
User button S2 is forwarded to the CRUVI interface signal A4_N:
A4_N <= BUTTON1;
LEDs
Status LED
The LED D1 is utilized for board status information in the following way:
Sequenz | Description | |
---|---|---|
ON | LED ON | All OK, motor control disabled |
******** | continuous blinking | All OK, motor control enabled |
*ooooooo to *******o | 1 to 7 times blinking with a break | currently not used |
USR LED
User LED D2 is controlled via the CRUVI signal B0_N:
LED0 <= B0_N;
Appx. A: Change History and Legal Notices
Document Change History
To get content of older revision go to "Change History" of this page and select older document revision number.
Revision Changes
Date | Document Revision | CPLD Firmware Revision | Supported PCB Revision | Authors | Description |
---|---|---|---|---|---|
REV01 | REV01 | initial version | |||
All |
Legal Notices
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