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rmt: fix RMT data trancate issue

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Closes https://github.com/espressif/esp-idf/issues/5992
This commit is contained in:
morris
2020-10-19 19:04:54 +08:00
parent abc2b2c968
commit 353826cacc
3 changed files with 5 additions and 2 deletions
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3
components/soc/esp32/include/hal/rmt_ll.h
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@ -270,9 +270,10 @@ static inline void rmt_ll_set_carrier_to_level(rmt_dev_t *dev, uint32_t channel,
dev->conf_ch[channel].conf0.carrier_out_lv = level;
}
//Writes items to the specified TX channel memory with the given offset and writen length.
//the caller should ensure that (length + off) <= (memory block * RMT_CHANNEL_MEM_WORDS)
static inline void rmt_ll_write_memory(rmt_mem_t *mem, uint32_t channel, const rmt_item32_t *data, uint32_t length, uint32_t off)
{
length = (off + length) > RMT_CHANNEL_MEM_WORDS ? (RMT_CHANNEL_MEM_WORDS - off) : length;
for (uint32_t i = 0; i < length; i++) {
mem->chan[channel].data32[i + off].val = data[i].val;
}

3
components/soc/esp32s2beta/include/hal/rmt_ll.h
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@ -263,9 +263,10 @@ static inline void rmt_ll_set_carrier_to_level(rmt_dev_t *dev, uint32_t channel,
dev->conf_ch[channel].conf0.carrier_out_lv = level;
}
//Writes items to the specified TX channel memory with the given offset and writen length.
//the caller should ensure that (length + off) <= (memory block * RMT_CHANNEL_MEM_WORDS)
static inline void rmt_ll_write_memory(rmt_mem_t *mem, uint32_t channel, const rmt_item32_t *data, uint32_t length, uint32_t off)
{
length = (off + length) > RMT_CHANNEL_MEM_WORDS ? (RMT_CHANNEL_MEM_WORDS - off) : length;
for (uint32_t i = 0; i < length; i++) {
mem->chan[channel].data32[i + off].val = data[i].val;
}

1
components/soc/include/hal/rmt_hal.h
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@ -134,6 +134,7 @@ uint32_t rmt_hal_receive(rmt_hal_context_t *hal, uint32_t channel, rmt_item32_t
* @param src: RMT items to transmit
* @param length: length of RMT items to transmit
* @param offset: offset of RMT internal memory to store the items
* @note The caller should ensure that (length + offset) <= (memory block * RMT_CHANNEL_MEM_WORDS).
*/
void rmt_hal_transmit(rmt_hal_context_t *hal, uint32_t channel, const rmt_item32_t *src, uint32_t length, uint32_t offset);