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pls help...
i'm working on LPC1114-FBD/301 series
On my board 4 LED's are connected to P0_8, P0_9, P0_10, P0_11.
I'v written a sample code toggle them. Only on 8 and 9 port pin LED's are blinking but on 10 and 11 there state is always on. here is the sample code
/* by default P0_8 and P0_9 pins are GPIO's */ LED_DIR |= BIT(8); LED_DIR |= BIT(9);
/* 9th and 10th pins are not GPIO's on reset */ // i think here some changes required to make them as GPIO's IOCON_SWCLK_PIO0_10 |= 0x1; IOCON_R_PIO0_11 |= 0x1;
LED_DIR |= BIT(10); LED_DIR |= BIT(11);
No test of GPIO0DATA? If port is output, then you should be able to set bits and read back the same value. If port is input, then your writes should be thrown away. If port isn't GPIO but special function, then read should correspond to the actual value of the pin (even if driven by special function). working with IAR on a project I sorely missed Keils excellent GPIO debug window. In that window, the OP sholud be able to see exactly what is going on
Erik
I still wonder if the OP have reached chapter 9.4.1 yet.
"working with IAR on a project I sorely missed Keils excellent GPIO debug window."
you can do that with iar too.
sure, but much more cumbersome