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Diffstat (limited to 'doc/README.omap3')
| -rw-r--r-- | doc/README.omap3 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/doc/README.omap3 b/doc/README.omap3 index 9ab09793e..e05e816df 100644 --- a/doc/README.omap3 +++ b/doc/README.omap3 @@ -84,6 +84,38 @@ For all other commands see help +Interfaces +========== + +gpio + +To set a bit : + + if (!omap_request_gpio(N)) { + omap_set_gpio_direction(N, 0); + omap_set_gpio_dataout(N, 1); + } + +To clear a bit : + + if (!omap_request_gpio(N)) { + omap_set_gpio_direction(N, 0); + omap_set_gpio_dataout(N, 0); + } + +To read a bit : + + if (!omap_request_gpio(N)) { + omap_set_gpio_direction(NULL, 1); + val = omap_get_gpio_datain(N); + omap_free_gpio(N); + } + if (val) + printf("GPIO N is set\n"); + else + printf("GPIO N is clear\n"); + + Acknowledgements ================ |