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authorFredrik Thulin <fredrik@thulin.net>2016-05-13 12:51:31 +0200
committerFredrik Thulin <fredrik@thulin.net>2016-05-13 12:51:31 +0200
commitdb5b2075d6cf51a819c669ca48dc24cd578a625f (patch)
tree6a930cdc84685ea3d63577531bfe47da717d5a0b /projects/board-test/uart-test.c
parent2ddb4f618f34582ea8c9731898651284aec600e7 (diff)
Implement support for the two UARTs on the alpha board.
Diffstat (limited to 'projects/board-test/uart-test.c')
-rw-r--r--projects/board-test/uart-test.c48
1 files changed, 23 insertions, 25 deletions
diff --git a/projects/board-test/uart-test.c b/projects/board-test/uart-test.c
index 6f022f4..eb6108a 100644
--- a/projects/board-test/uart-test.c
+++ b/projects/board-test/uart-test.c
@@ -16,36 +16,34 @@
int
main()
{
- uint8_t tx = 'A';
- uint8_t rx = 0;
- uint8_t upper = 0;
+ uint8_t crlf[] = "\r\n";
+ uint8_t tx = 'A';
+ uint8_t rx = 0;
+ uint8_t upper = 0;
- stm_init();
+ stm_init();
- while (1)
- {
- led_toggle(LED_GREEN);
+ while (1) {
+ led_toggle(LED_GREEN);
- uart_send_char2(STM_UART_USER, tx + upper);
- uart_send_char2(STM_UART_MGMT, tx + upper);
- DELAY();
+ uart_send_char2(STM_UART_USER, tx + upper);
+ uart_send_char2(STM_UART_MGMT, tx + upper);
+ DELAY();
- if (uart_recv_char2(STM_UART_USER, &rx, 0) == HAL_OK ||
- uart_recv_char2(STM_UART_MGMT, &rx, 0) == HAL_OK) {
- led_toggle(LED_YELLOW);
- if (rx == '\r') {
- upper = upper == 0 ? ('a' - 'A'):0;
+ if (uart_recv_char2(STM_UART_USER, &rx, 0) == HAL_OK ||
+ uart_recv_char2(STM_UART_MGMT, &rx, 0) == HAL_OK) {
+ led_toggle(LED_YELLOW);
+ if (rx == '\r') {
+ upper = upper == 0 ? ('a' - 'A'):0;
+ }
}
- }
- if (tx++ == 'Z') {
- /* linefeed after each alphabet */
- uart_send_char2(STM_UART_USER, '\r');
- uart_send_char2(STM_UART_USER, '\n');
- uart_send_char2(STM_UART_MGMT, '\r');
- uart_send_char2(STM_UART_MGMT, '\n');
- tx = 'A';
- led_toggle(LED_BLUE);
+ if (tx++ == 'Z') {
+ /* linefeed after each alphabet */
+ uart_send_string2(STM_UART_USER, crlf);
+ uart_send_string2(STM_UART_MGMT, crlf);
+ tx = 'A';
+ led_toggle(LED_BLUE);
+ }
}
- }
}