CMR GHRD adding other peripherals
Other peripherals which the user may find useful are added and the finishing touches are done to the Platform Designer build.
Add System ID Peripheral
Add JTAG UART
Add DIP Switch IP
Add LED IP
Add Push Button IP
Assign Base Addresses and Interrupt Numbers
- Find the System ID Peripheral in the IP Catalog.
- Double-click it to add it to the System Contents.
- In the wizard, change the 32 bit System ID parameter to
0x1234abcd - Click Finish.
- Rename it sys_id.
- Connect its clk port to sys_hps/h2f_user0_clock spine.
- Connect its reset port to the hps/h2f_reset spine.
- Connect its control_slave bus to the sys_hps/h2f_lw_axi_master bus.
- Find the JTAG UART Intel FPGA IP in the IP Catalog.
- Double-click it to add it to the System Contents.
- Click Finish.
- Rename it jtag_uart.
- Connect its clk port to sys_hps/h2f_user0_clock spine.
- Connect its reset port to the sys_hps/h2f_reset spine.
- Connect its avalon_jtag_slave bus to the sys_hps/h2f_lw_axi_master bus.
- Connect its irq port to both sys_hps/f2h_irq0 and sys_hps/f2h_irq1 ports
Normally, IP base addresses are assigned in Platform Designer by clicking the menu bar, selecting System -> Assign Base Addresses.
BUT in this case, we need to assign the base addresses manually and lock them because the Linux device tree is expecting them to be assigned at specific addresses. To do this double-click the address in the Base column, modify it per the table below, then click the open lock icon to the left of it to lock and prevent the system from modifying the address. Note: The end address is automatically recalculated and updated by the system.
Interrupt numbers for each IP block are shown in the IRQ column inside an edit box at the vertex of the line segments. An IP block can interrupt either CPU or both. In this case, each interrupt connects to both CPUs. Modify the IRQs by clicking on the edit box in the vertex and modifying the number, insuring that both IRQs for a given IP block match.
| Port | Base Address | Interrupt (if applicable) |
|---|---|---|
| hdmi_dmac_0 | 0x0009_0000 | IRQ #4 |
| axi_hdmi_tx_0 | 0x000a_0000 | N/A |
| sys_id | 0x0001_0000 | N/A |
| jtag_uart | 0x0001_0010 | IRQ #0 |
If there are no messages in red color (or error messages), do the following:
- Click the Generate HDL button in the bottom right of the window,
- Click Generate in the Generation window that pops up,
- Click Close in the Save System window,
- Click Close when the Generate window finishes.
- Optionally, close the Platform Designer by clicking Finish in the lower right corner of the window.
Next - Creating Top-Level Design
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