Question about gpio interrupt and PWM setting about embarc_osp HOT 3 CLOSED

although, emsk has 4 gpio groups (PORT A , B, C, D), only GPIO PORT A can be used as external interrupt.

pls check EMSK_GPIOUART4_PORT should be the number of GPIO PORT A.

EMSK doesn't have PWM IP, you have to use GPIO to simulate it if you need PWM function

from embarc_osp.

I am using GPIO PORT A.But my program could not raise the interrupt.

#define EMSK_GPIOUART4_PORT		DEV_GPIO_PORT_A
#define GPIO_UART4_MASK		0x00030000		//portA的16-17Pin，接J3的7-8口
#define GPIO_UART4_LOW	  (0)
#define GPIO_UART4IN_MASK	0X00010000		//portA的16Pin，接J3的7口
#define GPIO_UART4OUT_MASK	0X00020000		//portA的17Pin，接J3的8口

from embarc_osp.

Please check the default pinmux settings in https://github.com/foss-for-synopsys-dwc-arc-processors/embarc_osp/blob/master/board/emsk/drivers/mux/mux.c#L168, make sure the pins you want to control is set to GPIO not other functions.

And the bit_isr.int_bit_ofs = GPIO_UART4IN_MASK; should be offset not mask. Please check and modify it correctly.

See document about device hal for GPIO here:

• http://embarc.org/embarc_osp/doc/embARC_Document/html/structdev__gpio__bit__isr.html
• http://embarc.org/embarc_osp/doc/embARC_Document/html/group___d_e_v_i_c_e___h_a_l___g_p_i_o.html

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