139
Figure 8-11 4-wire SPI Timing Diagram
EEPROM Control
EEPROM is accessed through the I2C interface. In this demo, I2C signal is toggle by NIOS II
through the PIO controller. The I2C clock signal is driver by an OUTPUT PIO Controller and the
I2C data signal is driver by a BIDIRECTION PIO Controller. The I2C C code is located in:
DE0_NANO_SOPC_DEMO\software\DE0_NANO\terasic_lib\I2C.c
EPCS Control
EPCS64 is accessed through the EPCS interface. In Quartus 10.0 or later, the EPCS pin assignment
is required and should be connected the pins to EPCS Controller as shown below
Figure 8-12
:
Figure 8-12 EPCS interface connection
For the EPCS access functions, users can refer to:
DE0_NANO_SOPC_DEMO\software\DE0_NANO\terasic_lib\Flash.c
Содержание De0-Nano
Страница 1: ...1 ...
Страница 4: ...4 9 3 Revision History 155 9 4 Copyright Statement 155 ...
Страница 44: ...44 Figure 6 5 Browse to find the location Figure 6 6 There is no need to test the driver ...
Страница 90: ...90 Figure 7 14 Add NIOS II Processor ...
Страница 91: ...91 Figure 7 15 Nios II Processor 9 Click Finish to return to main window as shown in Figure 7 16 ...
Страница 93: ...93 Figure 7 17 Rename the CPU 1 Figure 7 18 Rename the CPU 2 ...
Страница 98: ...98 Figure 7 23 Add On Chip Memory ...
Страница 100: ...100 Figure 7 25 Update Total memory size ...
Страница 102: ...102 Figure 7 28 Update CPU settings ...
Страница 104: ...104 Figure 7 30 Add PIO ...
Страница 106: ...106 Figure 7 32 PIO 21 Rename pio_0 to pio_led as shown in Figure 7 33 Figure 7 33 Rename PIO ...
Страница 113: ...113 Figure 7 43 Input verilog Text Figure 7 44 Open DE0_NANO_SOPC v ...
Страница 146: ...146 Figure 8 16 Display Progress and Result Information for the SDRAM Demonstration ...
Страница 150: ...150 Figure 9 3 Select Devices Page ...
Страница 151: ...151 Figure 9 4 Convert Programming Files Page ...