diff include/matrix_gpio_mapping.h @ 16:670be80463a3 matrix_gpio

- analog matrixIn/matrixOut are now mapped as floats from 0 to 1
- use of an external PRU code can be enabled with -P <filename>
- 16 channels of programmable GPIO can be accessed straight from render() either writing directly to the matrixGpio[] array or using digitalWrite(),
digitalRead(), setDigitalDirection() macros from Utilities.h .

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/matrix_gpio_mapping.h	Mon Apr 27 13:01:57 2015 +0100
@@ -0,0 +1,71 @@
+#ifndef MATRIX_GPIO_MAPPING_H
+#define MATRIX_GPIO_MAPPING_H
+
+#define NUM_MATRIX_GPIOS 16
+extern short int matrixGpioPins[NUM_MATRIX_GPIOS];
+//GPIO_INPUT and GPIO_OUTPUT values when calling the setDigitalDirection() macro.
+//TODO: these are inverted with respect to INPUT_PIN and OUTPUT_PIN defined in GPIOcontrol.h,
+//which might lead to unexpected results in case someone uses those in place of these or viceversa
+#define GPIO_INPUT 1
+#define GPIO_OUTPUT 0
+
+//mapping GPIO numbers to header pins
+//if you want to use different pins/ordering, define here new pins. The ordering here is NOT binding
+#define P8_07_GPIO_NO 66
+#define P8_08_GPIO_NO 67
+#define P8_09_GPIO_NO 69
+#define P8_10_GPIO_NO 68
+#define P8_11_GPIO_NO 45
+#define P8_12_GPIO_NO 44
+#define P9_12_GPIO_NO 60
+#define P9_14_GPIO_NO 50
+#define P8_15_GPIO_NO 47
+#define P8_16_GPIO_NO 46
+#define P9_16_GPIO_NO 51
+#define P8_18_GPIO_NO 65
+#define P8_27_GPIO_NO 86
+#define P8_28_GPIO_NO 88
+#define P8_29_GPIO_NO 87
+#define P8_30_GPIO_NO 89
+
+//mapping pin headers to bits in the matrixGpio word.
+//used in the declaration of short int matrixGpioPins[NUM_MATRIX_GPIOS] below, which is used in PRU::prepareGPIO to export the pins
+//if you want to use different pins, declare them above and use them here
+//The ordering here is NOT binding, but if you want to use a different ordering, please change it here as well as below and in the PRU, for consistency
+#define GPIO_NO_BIT_0 P8_07_GPIO_NO
+#define GPIO_NO_BIT_1 P8_08_GPIO_NO
+#define GPIO_NO_BIT_2 P8_09_GPIO_NO
+#define GPIO_NO_BIT_3 P8_10_GPIO_NO
+#define GPIO_NO_BIT_4 P8_11_GPIO_NO
+#define GPIO_NO_BIT_5 P8_12_GPIO_NO
+#define GPIO_NO_BIT_6 P9_12_GPIO_NO
+#define GPIO_NO_BIT_7 P9_14_GPIO_NO
+#define GPIO_NO_BIT_8 P8_15_GPIO_NO
+#define GPIO_NO_BIT_9 P8_16_GPIO_NO
+#define GPIO_NO_BIT_10 P9_16_GPIO_NO
+#define GPIO_NO_BIT_11 P8_18_GPIO_NO
+#define GPIO_NO_BIT_12 P8_27_GPIO_NO
+#define GPIO_NO_BIT_13 P8_28_GPIO_NO
+#define GPIO_NO_BIT_14 P8_29_GPIO_NO
+#define GPIO_NO_BIT_15 P8_30_GPIO_NO
+
+//mapping bits in the matrixGpio word to pin headers, so that pin header name can be used instead of but number
+//The ordering here IS binding. If you want to use different pins/ordering, please do it above as well as here and in the PRU, for consistency
+#define P8_07 0
+#define P8_08 1
+#define P8_09 2
+#define P8_10 3
+#define P8_11 4
+#define P8_12 5
+#define P9_12 6
+#define P9_14 7
+#define P8_15 8
+#define P8_16 9
+#define P9_16 10
+#define P8_18 11
+#define P8_27 12
+#define P8_28 13
+#define P8_29 14
+#define P8_30 15
+
+#endif