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Author SHA1 Message Date
Stephan I. Böttcher
88dace0e0f ssp_set_buffer(0,0): no buffer 
use ssp_set_buffer(0,-1) to use the full scratch buffer.
 2024-11-08 16:32:21 +01:00
Stephan I. Böttcher
6ad8702936 ads8688: batch driven 
- add batch driven operations
  - `read_cb`: read manually selected channels up to 256 time
  - `read_auto_cb`: read auto channels
  - `gains_cb`: read or set channel ranges

- `adc/frame`: send single spi frames
- `adc/gains`: read or set channel ranges
- `adc/read`: start readout
- `adc/print`: act on read results/status
 2024-11-08 15:43:06 +01:00
Stephan I. Böttcher
131d90dd9d ssp: fixes and changes for ads8688 
- remove `ssp_lastword`, unused
- `ssp_set_buffer(0, size)` limit scratch buffer use to `size`
- `ssp_callback` reset when called.
- `ssp_submit_job` call `ssp_set_buffer()`, set `ssp_callback`
- `s/ssp_submit_batch/ssp_start_batch/`
- new: `ssp_submit_batch()` to atomically set `ssp_callback`
- `ssel_delay()`: `__asm__ volatile`
- `ssp_b_scratch`, `ssp_b_buffer`: `call ssp_set_buffer()`
- `ssp_b_whilebuf`: abort `ssp_b_repeat` when buffer runs out.
- `ssp_b_stop`, `ssp_b_return`: postpone while `ssp_b_repeat`
- `ssp_b_jump`: fix jump offset, apply offset to `->batch` too
- `ssp_b_job`: only submit when nonempty
- `ssp_start_batch()`: do not set `ssp_callback`
 2024-11-08 15:25:37 +01:00
stephan
d6be6f5afe parser: avoid non-const string 
git-svn-id: svn+ssh://asterix.ieap.uni-kiel.de/home/subversion/stephan/solo/eda/arm@9133 bc5caf13-1734-44f8-af43-603852e9ee25
 2024-11-08 15:17:01 +01:00
stephan
dfbbb088d2 isr: add "memory" to CPSR asm 
git-svn-id: svn+ssh://asterix.ieap.uni-kiel.de/home/subversion/stephan/solo/eda/arm@9134 bc5caf13-1734-44f8-af43-603852e9ee25
 2024-11-08 15:16:46 +01:00
Stephan I. Böttcher
0feba685ea ssp_commands: ssp/reads, ssp/send 
- ssp/config: make value bits orthogonal
- ssp/reads: setup ssp_match
- ssp/send: ssp_submit a job
 2024-11-06 09:01:52 +01:00
Stephan I. Böttcher
886c367914 ssp_match: member order, make .mask the high order bits 2024-11-06 09:01:09 +01:00
Stephan I. Böttcher
fe53cbe6b8 ccp/config/pressure 2024-11-05 10:14:39 +01:00
Stephan I. Böttcher
b79ae77e39 new command ssp/config 
configure the ssp (mode,ssel)
init, deassert, assert, wait, reset
 2024-11-04 23:35:46 +01:00
Stephan I. Böttcher
69ff47f149 pressure_command: ssp_batch readout 
keep the old implementation as bate_cmd.
 2024-11-04 21:12:32 +01:00
Stephan I. Böttcher
0514546b7d ssp job.count 
- Replace `.idle_count` by `.count`
- Keep track of received and sent frames.
- Properly extend the job at a match.
 2024-11-04 14:35:01 +01:00
Stephan I. Böttcher
c972a723c1 make %.s -fverbose-asm 2024-11-04 14:34:50 +01:00
Stephan I. Böttcher
60d830fdae ssp variable names 2024-11-03 21:14:33 +01:00
Stephan I. Böttcher
71e567fdc5 ssp_start_buffer, size in short words 2024-11-03 20:21:05 +01:00
Stephan I. Böttcher
a91d06723f ssp_batch: all new 2024-11-03 17:50:50 +01:00
Stephan I. Böttcher
47be0651b0 pressure: struct ssp_batch bate_batch[] 2024-11-03 12:17:52 +01:00
Stephan I. Böttcher
bcf8f25f7a Makefile: -Wno-missing-field-initializers 2024-11-03 12:17:13 +01:00
Stephan I. Böttcher
bff7cdb5d4 ssp_abort_batch() 2024-11-03 12:16:28 +01:00
Stephan I. Böttcher
5954e875b1 ssp_batch->wait 2024-11-02 23:03:18 +01:00
Stephan I. Böttcher
57d95b7a1b timer_wait: callback args, … 2024-11-02 23:02:37 +01:00
Stephan I. Böttcher
6c8119424b timer_wait 
Turn on timer1.
Reset and Interrupt at MR0.
Configure ISR for both timers.
Allow waiting for timer events and pin state:
- `mclk`: Timer0, a number of MCLK interrupts (65536kHz)
- `pclk`: Timer1, one-shot MR0 interrupt, 60MHz.
- `ccr0`: AD0.1…3 reconfigured as Capture inputs.
- `ccr1`: MISO, AD1.2 reconfigured as Capture inputs.
- `gpio0`: Wait for pin state.

Use case: MS5534C readout

- CAP1.3 irq on falling edge from MISO
- 50ms timeout via timer0 `mclk`
- 35ms timeout via timer1 `pclk`
- test if MISO is low at each mclk irq.

(could be all configured at the same time.)
 2024-11-02 18:35:17 +01:00
Stephan I. Böttcher
44a7192afb isr.h: assign vector for timer1, at low priority 2024-11-02 18:32:02 +01:00
Stephan I. Böttcher
3e62d01ad8 gpio.h: more timer pins enumerated 2024-11-02 18:30:47 +01:00
Stephan I. Böttcher
4d08354a50 pcb.h: fix P028_Capture0_2 2024-11-02 18:29:52 +01:00
Stephan I. Böttcher
91fa47d67c ssp: struct ssp_wait 2024-11-02 15:41:33 +01:00
Stephan I. Böttcher
eff851b274 struct ssp_batch 2024-11-02 14:26:19 +01:00
Stephan I. Böttcher
ed7c44de29 printf: add flags, printf_partial 2024-11-02 13:55:56 +01:00
Stephan I. Böttcher
33e969b5a2 uart1: fixes, UART1_RX_FLAG_SEND 
- major fixes all over
- directly send the received string/data via `printf()`
  even without providing a buffer
  uart1_receive(s=0, 120, UART1_RX_FLAG_SEND)
 2024-11-02 13:28:54 +01:00
Stephan I. Böttcher
d11527f131 gpio.h: enumerate CAP and MAT pin functions 2024-11-02 13:26:32 +01:00
Stephan I. Böttcher
6d5e8152aa ads8688: implement adc readout 2024-11-01 21:39:45 +01:00
Stephan I. Böttcher
63d3bf4bc8 ltc2656: deassert ssel before assert 2024-11-01 21:37:12 +01:00
Stephan I. Böttcher
d071775cc6 ltc2656: new file, send ssp frames to the dac 2024-11-01 16:45:17 +01:00
Stephan I. Böttcher
2a62ce34c1 make ssp_conf_* variable, drop _daisy 2024-11-01 16:34:59 +01:00
Stephan I. Böttcher
61fc1996a3 pressure/send: printf results 2024-11-01 12:54:08 +01:00
Stephan I. Böttcher
9583a2aafd pressure: bate_cmd() 
commmnd to drive `read_pressure()`
 2024-11-01 12:37:00 +01:00
Stephan I. Böttcher
3f378da7ea read_pressure() make it all compile 
- `ssp_init(0)` make `ssp_config()` arg optional, fixes `main()`
- `ssp_conf_bate[]` is non const array accessible as array variable
  "bate_mode"
- `read_pressure()` takes `idx` arg to `ssp_conf_bate[]`.
- remove argument to `ssp_assert_ssel()`
- make `ssp_deassert_ssel()` static inline
- fix compiler warnings and errors
  - make ssp_submit(cmd) arg const.
  - rearrange #includes
  - …
 2024-11-01 10:52:39 +01:00
Stephan I. Böttcher
1a93e99d96 message.c: avoid signed/unsigned warning 2024-11-01 10:50:28 +01:00
Stephan I. Böttcher
1997030377 gpio.h: include <lpc2148/gpio.h> 2024-11-01 10:49:09 +01:00
Stephan I. Böttcher
3b667318cb pressure.c: read_pressure() 
Implement readout of the MS5534C pressure sensor.
 2024-11-01 10:18:32 +01:00
Stephan I. Böttcher
6aaced18ad gpio.h: define SSP_MISO 
define macro `SSP_MISO` to read the status of the miso line.  Waiting
for the MS5534C pressure sensor conversion need to look at the status of
this pin.

The pin could be configured as an edge sensitive interrupt
via timer1 capture.  With a neat gimick to measure the conversion time.
 2024-11-01 10:14:27 +01:00
Stephan I. Böttcher
de392895d7 ssp.h: ssp_set_match(), … 
- helper to set all five match vars in one line.
- fix arg names of `ssp_submit()`
 2024-11-01 10:12:49 +01:00
Stephan I. Böttcher
ce64c3ac74 ssp.c: fixes 
- decrement `ssp_frame_count` also when `rc`
- do not reset buffer in `ssp_reset()`
- return from `ssp_busy()` returned by `ssp_wait()`
 2024-11-01 10:10:26 +01:00
Stephan I. Böttcher
560f7b806b ssp rewrite, gpio 
Drop ssp compatibility, injection, etc.
Rewrite the isr optimised for small messages.
Allow operation without buffer.

Add gpio documentation and simple gpio primitives.
 2024-10-31 19:00:19 +01:00
Stephan I. Böttcher
88f7f36fb4 printf: fix whitespace 2024-10-29 20:03:47 +01:00
Stephan I. Böttcher
b23ad870c8 echo/print: use printf() to poll_dma 2024-10-29 16:35:41 +01:00
Stephan I. Böttcher
f7123ff29d printf() 
Implement printf() to send output via poll_dma.

The printed output must fit into a single 512 byte sized buffer.  It is
appended to the current buffer whenit fits, else, the buffer is
submitted and the message goes into a new one. With `poll_dma_nonblock`,
every print goes into a new data block, zero filled.
 2024-10-29 13:35:38 +01:00
Stephan I. Böttcher
3f192fc07f poll_dma_submit(0,0) 
Allow calling `poll_dma_submit()` with both args zero.  The effect is to
submit external changes to the buffer, or retry a failed submission of a
full buffer.

To be used by: printf()
 2024-10-29 13:32:26 +01:00
Stephan I. Böttcher
21750a6e98 remove Altera ifc 
keep the files `altera.[ch]` for ssp/spi.
keep `pressure.[ch]` for the calibration.
 2024-10-28 16:33:13 +01:00
Stephan I. Böttcher
2660f821fd add uart1 driver and basic mainloop support 2024-10-22 22:03:49 +02:00
Stephan I. Böttcher
61b028bcdc HK ADC vars fix 2024-10-21 21:34:18 +02:00