Fixed rxwm setting as it defines the maximum number of received bytes

*before* the interrupt
2018-10-05 12:23:39 +02:00
parent 2a45030414
commit d6db5f7e04
1 changed files with 1 additions and 1 deletions
--- a/riscv-bldc-forced-commutation/src/io/spi.h
+++ b/riscv-bldc-forced-commutation/src/io/spi.h
@@ -169,7 +169,7 @@ public:
    template<size_t SIZE>
    static bool transfer(std::array<uint8_t, SIZE>& bytes){
        csmode_reg().mode=2; // HOLD mode
-        rxctrl_reg().rxmark=bytes.size(); // trigger irq if 3 bytes are received;
+        rxctrl_reg().rxmark=bytes.size()-1; // trigger irq if more than 2 bytes are received;
        ie_reg().rxwm=1;
        // write data bytes
        for(size_t i=0; i<bytes.size(); ++i)