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driver test: Ensure uart write task can't overflow buffer of read task

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Previously both tasks had equal priority, possible for write task and another
internal task to be scheduled at the same time - starving read task and
causing data loss.

Related to IDFCI-59
This commit is contained in:
Angus Gratton
2020-07-08 16:48:18 +10:00
committed by Angus Gratton
parent 5341688c7e
commit 289ad82bc0
1 changed files with 1 additions and 1 deletions
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components/driver/test/test_uart.c
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@@ -255,7 +255,7 @@ TEST_CASE("uart read write test", "[uart]")
vTaskDelay(1 / portTICK_PERIOD_MS); // make sure last byte has flushed from TX FIFO
TEST_ESP_OK(uart_flush_input(uart_num));
xTaskCreate(uart_write_task, "uart_write_task", 2048 * 4, (void *)uart_num, 5, NULL);
xTaskCreate(uart_write_task, "uart_write_task", 2048 * 4, (void *)uart_num, UNITY_FREERTOS_PRIORITY - 1, NULL);
int len_tmp = 0;
int rd_len = 1024;
for (int i = 0; i < 1024; i++) {