nikk

hm mine A7 works fine off USB cable

Trying to test SPI on J6 with the simple program: #include "xspi.h" #include "xparameters.h" #include "xil_printf.h" #include "sleep.h" int main() { xil_printf("Hello World!\r\n"); static XSpi device; XSpi_Config *pcfg; int status; pcfg = XSpi_LookupConfig(XPAR_SPI_0_DEVICE_ID); xil_printf("Spi_LookupConfig = %d\r\n", pcfg); status = XSpi_CfgInitialize(&device, pcfg, pcfg->BaseAddress); xil_printf("XSpi_CfgInitialize = %d\r\n", status); status = XSpi_SetOptions(&device, XSP_MASTER_OPTION | XSP_MANUAL_SSELECT_OPTION); xil_printf("XSpi_SetOptions = %d\r\n", status); status = XSpi_Start(&device); xil_printf("XSpi_Start = %d\r\n", status); XSpi_IntrGlobalDisable(&device); xil_printf("XSpi_IntrGlobalDisable = %d\r\n", status); status = XSpi_SetSlaveSelect(&device, 0b1); xil_printf("XSpi_SetSlaveSelect = %d\r\n", status); u8 bytes [4] = {0x01,0x02,0x03,0x04}; xil_printf("Before loop starts\r\n"); while (1) { xil_printf("loop...\r\n"); status = XSpi_Transfer(&device, bytes, NULL, 4); xil_printf("XSpi_Transfer = %d\r\n",status); usleep(1); } } Output: Hello World! Spi_LookupConfig = 9300 XSpi_CfgInitialize = 0 XSpi_SetOptions = 0 XSpi_Start = 0 XSpi_IntrGlobalDisable = 0 XSpi_SetSlaveSelect = 0 Before loop starts loop... on attached screenshot I see only two bytes are sent out and that is it, why?

Thank you for your quick reply. Status = XSpi_SetSlaveSelect(SpiInstancePtr, 1); and Status = XSpi_SetSlaveSelect(SpiInstancePtr, 0); are always returned 0 which is XST_SUCCESS. Frequency wise, on screenshot I have divider 16*2 so 100/32 = 3.125MHz, so should be fine for the sensor spec. With the microcontroller it works on 8MHz for SPI. Any other ideas? when I measure voltage on CS pin it's always 2.257V, yes it has pull-up resistor 10K, exactly like for PmodACL Also noticed that in digilent code that called XSpi_Start after setting XSpi_SetSlaveSelect, does it matter?

Hi, I am using an original ARTY A7 board. Using an SPI device with ARTY board connected to J6. I'm sending two bytes via FPGA and I see the clock on a scope and master output but I see that CS line is still high, what am I doing wrong? here is my simple code to send two bytes: XSpi_Config *ConfigPtr; /* Pointer to Configuration data */ ConfigPtr = XSpi_LookupConfig(SPI_DEVICE_ID); if (ConfigPtr == NULL) { return XST_DEVICE_NOT_FOUND; } Status = XSpi_CfgInitialize(SpiInstancePtr, ConfigPtr, ConfigPtr->BaseAddress); if (Status != XST_SUCCESS) { return XST_FAILURE; } Status = XSpi_SelfTest(SpiInstancePtr); if (Status != XST_SUCCESS) { return XST_FAILURE; } if (SpiInstancePtr->SpiMode != XSP_STANDARD_MODE) { return XST_SUCCESS; } uint8_t clk_pha; uint8_t clk_pol; clk_pha = 1; clk_pol = 1; uint32_t spi_options = XSP_MASTER_OPTION | (clk_pol ? XSP_CLK_ACTIVE_LOW_OPTION : 0) | (clk_pha ? XSP_CLK_PHASE_1_OPTION : 0) | XSP_MANUAL_SSELECT_OPTION; Status = XSpi_SetOptions( SpiInstancePtr, spi_options); if (Status != XST_SUCCESS) { return XST_FAILURE; } XSpi_Start(SpiInstancePtr); XSpi_IntrGlobalDisable(SpiInstancePtr); int s = XSpi_SetSlaveSelect(SpiInstancePtr, 0x01); status = XSpi_Transfer(SpiInstancePtr, WriteBuffer, ReadBuffer, 2); s = XSpi_SetSlaveSelect(SpiInstancePtr, 0x00); PS: sensor works fine with microcontroller

Thanks, uninstalled Vivado+Vitis 2022 and installed Vivado+Vitis 2021 - same, probably something with the Java but have no clue what is wrong.

Made a project in Vivado 2022.1, compiled it successfully, then selected Tools - Launch Vitis IDE and it starts and hangs right away. Please suggest. Vivado +Vitis 2022.1 on Windows 10 64Bit