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altos: Test I2C code on discovery board.
[fw/altos]
/
src
/
stm-demo
/
ao_demo.c
diff --git
a/src/stm-demo/ao_demo.c
b/src/stm-demo/ao_demo.c
index ea4dadfa89d438513c1414308569367d525bb947..879f7f75bb4fbdb1cb3c71c67fddb43aa645439d 100644
(file)
--- a/
src/stm-demo/ao_demo.c
+++ b/
src/stm-demo/ao_demo.c
@@
-111,7
+111,26
@@
ao_spi_read(void) {
}
}
}
}
+static void
+ao_i2c_write(void) {
+ unsigned char data[] = { 0x55, 0xaa, 0xff, 0x00 };
+ int i;
+ for (i = 0; i < 10; i++) {
+ ao_i2c_get(0);
+ if (ao_i2c_start(0, 0x55))
+ ao_i2c_send(data, 4, 0);
+ else {
+ printf ("i2c start failed\n");
+ ao_i2c_put(0);
+ break;
+ }
+ ao_i2c_put(0);
+ printf(".");
+ flush();
+ ao_delay(100);
+ }
+}
static void
ao_temp (void)
static void
ao_temp (void)
@@
-133,6
+152,7
@@
__code struct ao_cmds ao_demo_cmds[] = {
{ ao_dma_test, "D\0DMA test" },
{ ao_spi_write, "W\0SPI write" },
{ ao_spi_read, "R\0SPI read" },
{ ao_dma_test, "D\0DMA test" },
{ ao_spi_write, "W\0SPI write" },
{ ao_spi_read, "R\0SPI read" },
+ { ao_i2c_write, "i\0I2C write" },
{ ao_temp, "t\0Show temp" },
{ 0, NULL }
};
{ ao_temp, "t\0Show temp" },
{ 0, NULL }
};
@@
-149,6
+169,7
@@
main(void)
// ao_lcd_stm_init();
// ao_lcd_font_init();
ao_spi_init();
// ao_lcd_stm_init();
// ao_lcd_font_init();
ao_spi_init();
+ ao_i2c_init();
ao_timer_set_adc_interval(100);
ao_timer_set_adc_interval(100);