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The TTP229 TonTouch IC is capacitive sensing design specifically for touch pad controls.The device built in regulator for touch sensor. Stable sensing method can cover diversity conditions.Human interfaces control panel links through non-conductive dielectric material. The main applicationis focused at replacing of the mechanical switch or button. The ASSP can independently handle the 8 touch pads or up to 16 touch pads.
LibDriver TTP229 is the full function driver of ttp229 launched by LibDriver. TTP229 provides touch reading and other functions. LibDriver complies with MISRA.
/src includes LibDriver TTP229 source files.
/interface includes LibDriver TTP229 SPI platform independent template.
/test includes LibDriver TTP229 driver test code and this code can test the chip necessary function simply.
/example includes LibDriver TTP229 sample code.
/doc includes LibDriver TTP229 offline document.
/datasheet includes TTP229 datasheet.
/project includes the common Linux and MCU development board sample code. All projects use the shell script to debug the driver and the detail instruction can be found in each project's README.md.
/misra includes the LibDriver MISRA code scanning results.
Reference /interface SPI platform independent template and finish your platform SPI driver.
Add the /src directory, the interface driver for your platform, and your own drivers to your project, if you want to use the default example drivers, add the /example directory to your project.
You can refer to the examples in the /example directory to complete your own driver. If you want to use the default programming examples, here's how to use them.
#include "driver_ttp229_basic.h"
uint8_t res;
uint32_t i;
uint8_t keys[16];
/* basic init */
res = ttp229_basic_init(TTP229_INTERFACE_SPI, TTP229_ACTIVE_LOW);
if (res != 0)
{
return 1;
}
...
/* loop */
for (i = 0; i < 3; i++)
{
/* delay 1000ms */
ttp229_interface_delay_ms(1000);
/* read data */
res = ttp229_basic_read_16_keys(keys);
if (res != 0)
{
(void)ttp229_basic_deinit();
return 1;
}
/* output */
ttp229_interface_debug_print("ttp229: key[0] key[1] key[2] key[3] is %d %d %d %d.\n", keys[0], keys[1], keys[2], keys[3]);
ttp229_interface_debug_print("ttp229: key[4] key[5] key[6] key[7] is %d %d %d %d.\n", keys[4], keys[5], keys[6], keys[7]);
ttp229_interface_debug_print("ttp229: key[8] key[9] key[10] key[11] is %d %d %d %d.\n", keys[8], keys[9], keys[10], keys[11]);
ttp229_interface_debug_print("ttp229: key[12] key[13] key[14] key[15] is %d %d %d %d.\n", keys[12], keys[13], keys[14], keys[15]);
ttp229_interface_debug_print("----------------------------------------------------\n");
...
}
...
/* loop */
for (i = 0; i < 3; i++)
{
/* delay 1000ms */
ttp229_interface_delay_ms(1000);
/* read data */
res = ttp229_basic_read_8_keys(keys);
if (res != 0)
{
(void)ttp229_basic_deinit();
return 1;
}
/* output */
ttp229_interface_debug_print("ttp229: key[0] key[1] key[2] key[3] is %d %d %d %d.\n", keys[0], keys[1], keys[2], keys[3]);
ttp229_interface_debug_print("ttp229: key[4] key[5] key[6] key[7] is %d %d %d %d.\n", keys[4], keys[5], keys[6], keys[7]);
ttp229_interface_debug_print("----------------------------------------------------\n");
....
}
...
/* deinit */
(void)ttp229_basic_deinit();
return 0;Online documents: https://www.libdriver.com/docs/ttp229/index.html.
Offline documents: /doc/html/index.html.
Please refer to CONTRIBUTING.md.
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