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pru: Compile with -Os instead of -O2

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The gcc -Os option significantly reduces the size of the PRU binary
and it has little impact on performance.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2017-08-14 13:59:41 -04:00
parent 4b5109c1b9
commit 71bb7acb8e
2 changed files with 2 additions and 2 deletions
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docs/Features.md
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@@ -86,7 +86,7 @@ represent total number of steps per second on the micro-controller.
| 20Mhz AVR | 189K | 125K |
| 16Mhz AVR | 151K | 100K |
| Arduino Due (ARM) | 382K | 337K |
| Beaglebone PRU | 689K | 689K |
| Beaglebone PRU | 680K | 680K |
On AVR platforms, the highest achievable step rate is with just one
stepper stepping. On the Due, the highest step rate is with two