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/*
* Test code that just sends the letters 'a' to 'z' over and
* over again using USART2.
*
* Toggles the BLUE LED slowly and the RED LED for every
* character sent.
*/
#include "stm_init.h"
#define DELAY() HAL_Delay(100)
int
main()
{
uint8_t c = 'a';
stm_init();
while (1)
{
HAL_GPIO_TogglePin(LED_PORT, LED_RED);
HAL_UART_Transmit(&huart2, (uint8_t *) &c, 1, 0x1);
DELAY();
if (c++ == 'z') {
c = 'a';
HAL_GPIO_TogglePin(LED_PORT, LED_BLUE);
}
}
}
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