CC3100MOD: SPI-Debug Example

Part Number:CC3100MOD

Hi Dear Support,

I have a problem on one of my custom made cc3100mod boards running the spi-debug tool. The program hangs at this line:

/* Wait until we get an increment on IRQ value */
    while (irqCheck == g_irqCounter) {
    }

Flashing the servicepack via UART was successful (servicepack_1.0.1.11-2.9.0.0.bin)

The Board is a custom made 2 layer board together with a stm32f446 nucleo and the programming environment OpenStm32/AC6.

I have measured all relevant signals mith the scope (3V3, Gnd, spi signals, nhib and reset). The Power is stable and I  did not found any short circuit or not connected signals. Could you give me any hint what could be wrong.

Thank you

Otto Parzhuber