RE: Renesas Solution Starter Kit for RX23E-A: enable GPIO FIT module (HAL)

Jan Cumps — Fri, 14 Jul 2023 22:34:11 GMT

A nice e² studio extension is the eclipse IO Registers view

I can pause the program, then write to the register. I can switch the LED on or off by flipping its write bit

RE: Renesas Solution Starter Kit for RX23E-A: enable GPIO FIT module (HAL)

Jan Cumps — Fri, 14 Jul 2023 09:58:07 GMT

The r_gpio_rx API is function based. The Config_PORT FIT uses structures to wrap around registers.

Example code using the r_gpio_rx API:

R_GPIO_PinWrite(LED1, GPIO_LEVEL_LOW);
 bool state = false;
 do {
 state = !state;
 R_GPIO_PinWrite(LED1, state ? GPIO_LEVEL_HIGH : GPIO_LEVEL_LOW);

// silly wait
 for (int i = 0; i < 10000000; i++) {};

} while (1);

Example using the Config_PORT structures:

#define LED_ON (0)
#define LED_OFF (1)
#define SET_LED(LED_STATE) (PORT7.PODR.BIT.B0 = (LED_STATE))

SET_LED(LED_OFF);
 bool state = false;
 do {
 state = !state;
 SET_LED(state ? LED_ON : LED_OFF);

// silly wait
 for (int i = 0; i < 10000000; i++) {};

} while (1);