[LPC812] change ssp_busy() to check RXOV

2013-12-31 20:24:46 +09:00 · 2013-12-31 20:24:46 +09:00 · 4fbf286ee3
parent 0a11767877
commit 4fbf286ee3
1 changed files with 3 additions and 3 deletions
--- a/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC81X/spi_api.c
+++ b/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC81X/spi_api.c
@ -183,8 +183,8 @@ static inline int ssp_read(spi_t *obj) {
 }

 static inline int ssp_busy(spi_t *obj) {
-    // TODO
-    return 0;
+    // checking RXOV(Receiver Overrun interrupt flag)
+    return obj->spi->STAT & (1 << 2);
    }

 int spi_master_write(spi_t *obj, int value) {