| iopeek | ||
|---|---|---|
 | 235.2. Common Commands |  |
Name
iopeek — Read I/O location
Synopsis
iopeek [-b location] [[-1] | [-2] | [-4]]
Arguments
| Name | Type | Description | Default |
|---|---|---|---|
-b location | I/O address | I/O Location. | none |
| -1 | Access a one byte (8 bit) I/O location. | -1 | |
| -2 | Access a two byte (16 bit) I/O location. | -1 | |
| -4 | Access a one word (32 bit) I/O location. | -1 |
Description
Reads a value from the I/O address space.
Examples
Examine 8 bit value at I/O location 0x3F8.
RedBoot> iopeek -b 0x3f8
0x03f8 = 0x30Examine 32 bit value at I/O location 0x3f8.
RedBoot> iopeek -b 0x3f8 -4
0x03f8 = 0x03c10065| |  | |
| help |  | iopoke |
| 2025-10-02 | eCosPro Non-Commercial Public License |