[ECOS] stm32 ADC driver - no interrupt generated

[Philipp Meier <pme dot neratec at gmx dot ch>]

I try to use the stm32 ADC driver. To see what's going on I have enabled 
tracing.

Problem is: No samples are going to be read although the adc is enabled.

The trace says it started scanning (see below).

Does anybody has the stm32 ADC driver working?

The trace output looks like this:
ADC:                 stm32_adc_init[ 180]: Initializing device
ADC:           stm32_adc_init_clock[ 416]: Initializing ADC system clk
ADC:          stm32_adc_init_device[ 532]: Setting ADC sample time to)
ADC:             stm32_adc_set_rate[ 329]: Setting rate to 100
ADC:               stm32_adc_lookup[ 231]: Opening device
ADC:               stm32_adc_enable[ 268]: Enabling channel
ADC:      stm32_adc_update_sequence[ 570]: Updating regular group
ADC:      stm32_adc_update_sequence[ 604]: sqr1: 0x00000000 sqr2: 0x0a
ADC:               stm32_adc_enable[ 279]: Starting scanning
ADC:              stm32_adc_disable[ 297]: Disabling channel
ADC:      stm32_adc_update_sequence[ 570]: Updating regular group
ADC:      stm32_adc_update_sequence[ 604]: sqr1: 0xfff00000 sqr2: 0x00
ADC:              stm32_adc_disable[ 306]: Stopping scanning
ADC:             stm32_adc_set_rate[ 329]: Setting rate to 100
ADC:               stm32_adc_enable[ 268]: Enabling channel
ADC:      stm32_adc_update_sequence[ 570]: Updating regular group
ADC:      stm32_adc_update_sequence[ 604]: sqr1: 0x00000000 sqr2: 0x0a
ADC:               stm32_adc_enable[ 279]: Starting scanning

Setting a breakpoint in stm32_dma_isr never gets hit! (for comparison: 
Setting a breakpoint in for example stm32_serial_ISR immediately gets 
hit when I have input on my serial line).

I tried both with ADC1 (/dev/adc010) and with ADC3 (/dev/adc110) - both 
times using channel 10 (i.e. STM32 port PC0).

Anybody any idea?

Cheers Philipp

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