I'm trying to set the SAI2 port on the Cortex M4 core of a MVF60NS151CMK50 and when I try to read the memory mapped registers in the I2S_MemMap struct mys system hangs. Has anyone else seen this problem? I'm using MQX 4.1.2 for the Vybrid and the gcc-arm-none-eabi-4_8-2014q1-20140314-linux compiler. In the: _ksai_hw_init function, any time I
try to read the member variables of the I2S_MemMap struct the system hangs. The i2s_ptr has the right value of
0x40031000, but if I try something like:
val = i2s_ptr->RCSR; I get nothing and the systems locks up. This is where I'm looking in the sai_dma_ksai.c file.
/* ================== General receiver configuration ==================== */
if (set_rx)
{
printf("\n Set Rx \n");
uint8_t rx_channel = ksai_init_ptr->RX_CHANNEL;
printf("i2sptr = 0x%.8x \n", i2s_ptr);
printf("i2sptr->rcsr = %d \n", i2s_ptr->RCSR);
i2s_ptr->RCSR = 0;
}
Thanks.
