1)I am trying to read AD7616 in parallel mode. I have built the HDL and c drivers(No-OS branch) from the source code provided by Analog devices. I have modified the HDL so as to just keep the axi_ad7616 and its Fifo interface for the Dma. Rest part of the project i have removed. I am attaching the block diagram for the project.
After that, i am using this device in default mode where channel V0A and V0B should be read.
I When i am integrating this with sdk part and doing a cross triggering to check the data
converted by the ADC, I am finding there is no change on the data lines(adc_data) of the axi_ad7616 IP, however ADC valid, adc sync, adc busy all these signals are getting generated. I have attached the output.can someone help me?
2) Also when i am trying to read back the "range data" for Register A1, using the following command,
uint16_t data;
ad7616_par_read(dev, AD7616_REG_INPUT_RANGE_A1, &data);
printf("Range = % d \n", data);
The output I am receiving is Range = 0,
However as per my input to init_param the value should be 255 right (since i have set range for ch V0A to V3A to AD7616_10V )?,
struct ad7616_init_param init_param = {
/* SPI */
.spi_param = &ad7616_spi_init,
.offload_init_param = &spi_engine_offload_init_param,
.reg_access_speed = 1000000,
/* GPIO */
.gpio_hw_rngsel0_param = NULL,
.gpio_hw_rngsel1_param = NULL,
.gpio_os0_param = NULL,
.gpio_os1_param = NULL,
.gpio_os2_param = NULL,
.gpio_reset_param = &ad7616_gpio_reset,
/* AXI Core */
.core_baseaddr = AD7616_CORE_BASEADDR,
/* Device Settings */
.mode = AD7616_SW,
.va = {AD7616_10V, AD7616_10V, AD7616_10V, AD7616_10V,
AD7616_10V, AD7616_10V, AD7616_10V, AD7616_10V
},
.vb = {
AD7616_10V, AD7616_10V, AD7616_10V, AD7616_10V,
AD7616_10V, AD7616_10V, AD7616_10V, AD7616_10V
},
.osr = AD7616_OSR_0,
.dcache_invalidate_range =
(void (*)(uint32_t, uint32_t))Xil_DCacheInvalidateRange,
};
I have attached my block diagram as well as the cross triggering output window.
Any help will be highly appreciated. TIA
