Kinetis Microcontrollers中的主题 Re: MKM34 problem GPIO PTH5..7

MKM34 problem GPIO PTH5..7

eduardomoretti — Tue, 06 Oct 2015 22:26:05 GMT

Hello, i´m working with KMK34 , i use Kinetis-M Peripheral Bare-Metal Drivers, but output PORT PTH GPIO not work PTH5, PTH6, and PTH7 but pins PTH0 ..... to PTH4 ok

im use

PORT_Init (PORTH, PORT_MODULE_LED_MODE, 0xFF);

GPIO_Init (GPIOH, GPIO_OUT_LOGIC1_MODE, 0xFF);

GPIO_Tgl(FGPIOH, 0xFF);

Please help

Re: MKM34 problem GPIO PTH5..7

Hui_Ma — Fri, 09 Oct 2015 06:18:46 GMT

Hi,

For KM34 doesn't provide FGPIO register definition, it need to use GPIOH instead of FGPIOH:

GPIO_Tgl(GPIOH, 0xFF);

Wish it helps.

Have a great day,
Ma Hui

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Re: MKM34 problem GPIO PTH5..7

MarMi — Fri, 30 Oct 2015 14:28:51 GMT

Hi,

both GPIOH and FGPIOH arguments for GPIO_Tgl/Set/Clr macros shall work and perform identical tasks in Kinetis-M bare metal drivers. Note however that on 128kB versions of Kinetis-M devices PORT H6, PORT H7 and PORT I1 are open drain and therefore you might have problems seeing these pins toggling unless external pull-ups are added into your design. I cannot explain why PORT H5 wasn't working in your case because this one is architectured to operate in push-pull mode.

Martin M.