display typed text
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main.c
29
main.c
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@ -85,25 +85,30 @@ int main(void)
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}
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}
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vfd_clear(); // clear all data
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vfd_clear(); // clear all data
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bool vfd_flag = false;
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uint8_t vfd_place = 0; // the place on which the next character will be displayed on the VFD
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for (uint8_t i=0; i<VFD_DIGITS; i++) {
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bool vfd_flag = false; // do something with the VFD
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vfd_digit(i,'0'+i);
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char c = 0; // the character to display
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}
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for (uint8_t i=0; i<VFD_MATRIX; i++) {
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vfd_matrix(i,'A'+i);
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}
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while (true) {
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while (true) {
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while (usart_received) { // echo every received character
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while (usart_received) { // echo every received character
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printf("%c",usart_getchar()); // transmit receive character
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c = usart_getchar();
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vfd_flag = true;
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vfd_flag = true; // display character
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}
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}
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while (cdcacm_received) { // echo every received character
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while (cdcacm_received) { // echo every received character
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printf("%c",cdcacm_getchar()); // transmit receive character
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c = cdcacm_getchar();
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vfd_flag = true;
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vfd_flag = true; // display character
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}
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}
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while (vfd_flag) {
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while (vfd_flag) {
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vfd_flag = false;
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vfd_flag = false;
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gpio_toggle(LED_PORT, LED_PIN); // toggle LED
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printf("%c", c); // transmit receive character
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gpio_toggle(LED_PORT, LED_PIN); // toggle LED to show activity
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if (c=='\r' || c=='\n') { // on newline
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vfd_clear(); // clear display
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vfd_place = 0; // restart from beginning
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} else {
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vfd_digit(vfd_place,c); // display character on digit
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vfd_matrix(vfd_place,c); // display character on matrix
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vfd_place++; // go to next place
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}
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}
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}
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__WFI(); // go to sleep
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__WFI(); // go to sleep
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}
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}
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