Hi,
I am working with nRF52 DK (52832), and the issue I am facing is that i am unable to increase the data size of data SPI -DMA can receive.
Currently it is configured at 30 bytes.
by configuring below macro more than 30, the code crashes.
macro in nrf52832_peripherals.h
#define SPIS0_EASYDMA_MAXCNT_SIZE 30 #define SPIS1_EASYDMA_MAXCNT_SIZE 30 #define SPIS2_EASYDMA_MAXCNT_SIZE 30
Below is the error which it gives on changing the value to 60 from 30
I have even modified the buffers sizes as per requirement as you can see in below code:
/* SPI as slave with esayDMA */ static const nrf_drv_spis_t spis = NRF_DRV_SPIS_INSTANCE(SPIS_INSTANCE);/**< SPIS instance. */ #define TEST_STRING "Nordic" static uint8_t m_tx_buf[60] = TEST_STRING; /**< TX buffer. */ //static uint8_t m_rx_buf[sizeof(TEST_STRING) + 1]; /**< RX buffer. */ static uint8_t m_rx_buf[60]; /**< RX buffer. */ static const uint8_t m_length = sizeof(m_tx_buf); /**< Transfer length. */
Is there any other changes which needs to be done, initially the value of the above macro was at 8 by default.
As per the data sheet the DMA can be configured to receive 255 bytes.
Looking forward to support on urgent basis.
kind regards,
Akshay Mehrotra
